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Department of
PHYSICS

Professor G.K.Rohan Senadeera

B.Sc. (Sp) Physics 1991, (Perad), Ph.D. (Solid State Physics, 1996, Perad, (sandwiched with DTU-Denmark), Post Doc. Dip.(Chemistry and Chemical Engineering, TIT, Japan (1998). M.Sc. (Medical Physics, Reading)

Professor in Physics

Department of Physics
  • Kandy Regional Center, Department of Physics, The Open University of Sri Lanka, Kandy Regional Centre, Polgolla
  • Mobile: +94718470973
  • gksen@ou.ac.lk, gkrsena@yahoo.com

Solid State Physics

Dye Sensitized Solar Cells, Polymer electrolytes, electronically conducting polymers

Fellow, Institute of Physics Sri Lanka

Professor in Physics , Department of Physics, The Open University of Sri Lanka, (OUSL) (From 2010 to date). Visiting Research Professor (NIFS) (From 2010 to date). Academic Coordinator, Faculty of Natural Sciences, Kandy Regional Centre, (2013-2016), OUSL

• Temp Assistant Lecture/Research Assistant / Temp. Senior Lecturer (Gr. II)- Department of Physics, University of Peradeniya  from 1991 to 1998, Project Leader – Solid State Chemistry Project, Research Fellow(1999-2004), Senior Research Fellow (2004-2007), Associate Research Professor (2007-2010)  –Solid State Chemistry Project, National Institute of Fundamental Studies, (NIFS), Sri Lanka. Visiting Lecturer, Rajarata University, Sri Lanka (2002&2013), Visiting Lecturer, Postgraduates Institute of Science, University of  Peradeniya, Sri Lanka (2012),

Postdoctoral Researcher, CENIMAT, New University of Lisbon, Portugal (2008). JSPS Postdoctoral Research Fellow, Osaka University, Japan (2002-2003), UNESCO–MOMBUSHO Postdoctoral Research Fellow  (1997-1998) , Tokyo Institute of Technology, Japan. International  Program in Physical Sciences Fellowship, Uppsala University, Sweden for Ph.D. Research work at the Technical University of  Denmark. (1992-1993)  and  (1994-1995).

Google Scholar h-index : 22  (No. of citations 2092)  SCI papers-52, Non SCI-08, Int.Conf.Proc/Abst =80, Local conf/symp/Abst. = 55, Published Journal Impact factors ranging from  9.890 to  0.420

Presidential Research Awards for years 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2010, 2013, 2014,  Merit Award for Scientific Publication (2012) and (2015), National Research Council, Sri Lanka;. The Open University Research Awards (2012,2013,2014,2015,2016) , National Science Foundation  SUSRED Award in 2017 (2018)

Editorial Board Member, Journal of Solar Energy Research Updates, Awanti  Publishers (2015-), . Journal of Solar Energy Research Updates, Awanti  Publishers (2015-),  International journal of Inventions in Engineering & Science Technology, International journal of Inventions in Electronics & Electrical Engineering, International Journal of Research in Science and Technology, IRA publications , India.

PHU5307 (Medical Physics)

In SCI / SCI expanded journals

1. G. K. R. Senadeera,· A. M. J. S. Weerasinghe, M. A. K. L. Dissanayake, C. A. Thotawatthage. J Appl Electrochem. 13 August (2018).pp 1-10 https://doi.org/10.1007/s10800-018-1247-6

2.M.A.K.L. Dissanayakea, T. Jaseetharan, G.K.R. Senadeera, C.A. Thotawatthage; A novel, PbS:Hg quantum dot-sensitized, highly efficient solar cell structure with triple layered TiO2 photoanode; Electrochimica Acta; 269, 172-179 (2018).

3.Bandara, T.M.W.J., Weerasinghe, A.M.J.S., Dissanayake, M.A.K.L., Senadeera, G.K.R., Furlani, M., Albinsson, I., Mellander, B.-E., (2018) ‘Characterization of poly (vinylidene fluoride-co-hexafluoropropylene) (PVdF-HFP) nanofiber membrane based quasi solid electrolytes and their application in a dye sensitized solar cell’ published in Electrochimica Acta (2018,Vol 266 DOI doi.org/10.1016/j.electacta.2018.02.025)

4.M.A.K.L.Dissanayake, J.M.K.W.Kumari, G.K.R.Senadeera, C.A.Thotawatthagea, B.-E.MellanderdI.Albinssone, A novel multilayered photoelectrode with nitrogen doped TiO2 for efficiency enhancement in dye sensitized solar cells ,Journal of Photochemistry and Photobiology A: Chemistry, Volume 349, 1 December 2017, Pages 63-72

5. M.A.K.L Dissanayake, H.N.M. Sarangika, G.K.R. Senadeera, H.K.D.W.M.N.R. Divarathnne. E.M.P.C. Ekanayake, , Application of a nanostructured, tri layer TiO2 photoanode for efficiency  enhancement in quasi solid  electrolyte based dye sensitized solar cxells, Journal of Applied Electrochemistrty, (2017) 47 (11), 1239-1249.

6. M.A.K.L Dissanayake, G.K.R. Senadera, T.M.W.J. Bandara, Mixed cation effect  and iodide ion conductivity in electrolytes for dye sensitized solar cells, IONICS,  (2017) 23(10) 2901-2907

7.K.A.S. Perera, K.P. Vidanapahirana, B. Jayamaha, L. Wewegama, ,M.A.K.L. Dissanayake, , G.K.R. Senadeera, K. Vignarooben, Polyethylene oxide based  nanocomposites polymer electrolytes for redox  capacitors, J. Solid state Electrochem, 21, 3459-3465 (2017)

8. H.N.W. Sarangika,  M.A.K.L. Dissanayake, G.K.R. Senadeera, P.R.P.W. Rathnayake, H.M.J.C. Pitawala, Polyethelene oxide and  ionic liquid based polymer electrolyte for regargeable  magnesium batteris, IONICS, (2017)  23 (10) 2829-2835.

9. .J.M.K.W. Kumari, G.K.R. Senadeera, M.A.K.L. Dissanayake, C.A. Thotawatthage Dependence of photovoltaic parameters on the size of cations adsorbed by TiO2 photoanode in dye-sensitized solar cells, Ionics, (2017) DOI 10.1007/s11581-017-1995-z

10. M.A.K.L. Diasanayake, G.K.R. Senadeera, H.N.M. Sarangika, P.M.P.C. Ekanayake, C.A. Thotawattage, H.K.D.W.M.N.R. Divarathnea and   J.M.K.W. Kumari; TiO2 as a Low Cost, Multi-Functional Material; Materials Today Proceedings:  3S; S40-S47 (2016).

11.H. N. M. Sarangika, M. A. K. L. Dissanayake, G. K. R. Senadeera, R. R. D. V. Rathnayake, H. M. J. C. Pitawala, Polyethylene oxide and ionic liquid-based solid polymer electrolyte for rechargeable magnesium batteries. Ionics,IONICS,  DOI 10.1007/s11581-016-1870-3 (2016)  Impact Factor 2.119

12. M.A.K.L. Dissanayakea, H.K.D.W.M.N. Divarathnaa, C.B. Dissanayake, G.K.R. Senadeera, P.M.P.C. Ekanayake, C.A. Thotawattage: An innovative TiO2 nanoparticle/nanofibre/nanoparticle, three-layer composite photoanode for efficiency enhancement in dye-sensitized solar cells; Journal of Photochemistry and Photobiology A: Chemistry 322, 110–118 (2016).  http://doi.org/10.1016/j.jphotochem.2016.02.017 ,  Impact Factor 2.477

13. M. A. K. L. Dissanayake, E. M. B. S. Ekanayake, L. R. A. K. Bandara, V. A. Seneviratne,  C. A. Thotawatthage,  S. L. Jayaratne and  G. K. R. Senadeera, Efficiency enhancement in mixed cation effect in polyethelyene oxide (PEO) based dye sensitized solar cells.  J Solid State Electrochem (2016) 20:193–201 , (DOI 10.1007/s10008-015-3018-1) (2016) Bimonthly ISSN: 1432-8488, Impact Factor 2.327

14.. M. A. K. L. Dissanayake,  J. M. K. W. Kumari,  G. K. R. Senadeera, and C. A. Thotawatthage Efficiency enhancement in plasmonic dye-sensitized solar cells  with TiO2 photoanodes incorporating gold and silver  nanoparticles, J Appl Electrochem 46:47–58 (2016) (DOI 10.1007/s10800-015-0886-0)Monthly ISSN: 0021-891X  Impact Factor 2.223

15..S .S. Dissanayake, M.A.K.L. Dissanayake, V.A. Seneviratne, G.K.R. Senadeera and C.A. Thotawattage; Performance of Dye Sensitized Solar Cells Fabricated with Electrospun Polymer Nanofiber Based Electrolyte; Materials Today: Proceedings; Volume 3, Supplement 1,  Pages S40-S47 (2016) Monthly ISSN: ISSN: 2214-7853,

16.. M. A. K. L. Dissanayake, E. M. B. S. Ekanayake, L. R. A. K. Bandara, V. A. Seneviratne, C. A. Thotawatthage, S. L. Jayaratne and G. K. R. Senadeera; Efficiency enhancement by mixed cation effect in polyethylene oxide (PEO)-based dye-sensitized solar cells; Journal of Solid State Electrochemistry; 1-9; (First online: 27 August (2015)

17. Andery Lim , N.T.R.N. Kumara, Ai Ling Tan c, Aminul Huq Mirza , R.L.N. Chandrakanthi, Mohammad Iskandar Petra , Lim Chee Ming, G.K.R. Senadeera, Piyasiri Ekanayake . Potential natural sensitizers extracted from the skin of Canarium odontophyllum fruits for dye-sensitized solar cells, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 138 596–602, (2015)

18.M.A.K.L. Dissanayake, R. Jayathissa, V.A. Seneviratne, C.A. Thotawattthage, G.K.R. Senadeera, B-E Mellander,Polymethylmethacrylate (PMMA) quasi solid electrolyte with binary iodide  salt for  efficiency enhancement  in TiO2  based dye sensitized solar cells,  Solid State ionics , 265, 1 November  p 85-91. (2014)

19.M.A.K.L. Dissanayake, W.N.S. Rupasinghe, V.A. Seneviratne, C.A. Thotawattthage, G.K.R. Senadeera, Optiization of iodide ion  conductivity and nano filler effect for efficiency enhancement in polyethelne oxide bsed dye sensitized solar cells.  Electrochemica acta , 145, 1, , , p 319-326 (2014)

20.M.A.K.L. Dissanayakea, H.K.D.W.M.N.R. Divarathnea, C.A. Thotawatthage, C.B. Dissanayake, G.K.R. Senadeera, B.M.R. Bandara; Dye-sensitized solar cells based on electrospun polyacrylonitrile (PAN) nanofibre membrane gel electrolyte; ElectrochimicaActa; 130; p76–81 (2014) p 76-81.

21.M. A. K. L. Dissanayake• C. A. Thotawatthage• G. K. R. Senadeera• T. M. W. J. Bandara, W. J. M. J. S. R. Jayasundara• B.-E. Mellander Efficiency enhancement in dye sensitized solar cells based on PAN gel electrolyte with Pr4NI + MgI2 binary iodide salt mixture, Journal of Applied Electrochemistry September, Volume 43, Issue 9, pp 891-901 (2013)

22.N.T.R.N. Kumara,  P. Ekanayake, Andery Lim,  Louis Liew Yu Chiang,M. Iskandar,, Lim Chee Ming, G.K.R. Senadeera, Layered co-sensitization for enhancement of conversion efficiency of natural dye sensitized solar cells , Journal of Alloys and Compounds 581 (2013) 186-191

23.M.A.K.L. Dissanayake, C.A. Thotawatthage, G.K.R. Senadeera, T.M.W.J. Bandara, W.J.M.J.S.R. Jayasundera, B.-E. Mellander,  Efficiency enhancement by mixed cation effect in dye-sensitized solar cells with PAN based gel polymer electrolyte, Journal of Photochemistry and Photobiology A: Chemistry, Volume 246, 15 October 2012, Pages 29-35 (2012)

24.Y.P.Y.P. Ariyasinghe, T.R.C.K. Wijayarathna, I.G.C.K. Kumara, I.P.L. Jayarathna, C.A. Thotawatthage, W.S.S. Gunathilake, G.K.R. Senadeera and V.P.S. Perera, Efficient passivation of SnO2 nano crystallites by Indoline D-149 via dual chelation, J. Photochem. and Photobiol A: Chemistry, Volume 217, Issue 1, 1 January 2011, Pages 249-252 (2011)

25.M.S. Senevirathne, A. Nanayakkara, G.K.R. Senadeera,A theoretical investigation of band gaps of conducting polymers with heterocycles, Journal of the National Science Foundation of Sri Lanka. Vol 39, No 2 ,183-185, (2011)

26.Iwona Bernacka-Wojcik, Rohan Senadeera, Pawel Jerzy Wojcik, Leonardo Bione Silva, Goncalo Doria, Pedro Baptista, Hugo Aguas, Elvira Fortunato, Rodrigo Martins. Inkjet printed and “doctor blade” TiO2 photodetectors for DNA biosensors, Biosensors and Bioelectronics 25, 1229–1234, (2010)

27.J. M. R. C. Fernando and G. K. R. Senadeera,Synthesis and characterization of carboxylated thiophene co-polymers and their use in photovoltaic cellsCurrent Science, Vol. 95, No. 6, 25 September (2008)

28.J. M. R. C. Fernando and G. K. R. Senadeera,Natural anthocyanins as photosensitizers for dye-sensitized solar devices,Current Science, Vol. 95, No. 5, 10 September, 663 (2008)

29. Polymer Sensitized Quasi Solid-State Photovoltaic Cells Using Derivatives of  Polythiophene,G.K.R.Senadeera*   and J.M.R.C.Fernando, J. Mater. Sci. Technol., Vol.22 No.6, (2006)  811

30. G.K.R. Senadeera *  , T. Kitamura, Y. Wada Yanagida*, S.Enhanced photoresponses of polypyrrole on surface modified TiO2 with self-assembled monolayers,Journal of Photochemistry and Photobiology A: Chemistry 184 (2006) 234–239

31. Rohan Senadeera*  , Norihiro Fukuri , Yasuteru Saito , Takayuki Kitamura, Yuji Wada  and  Shozo Yanagida*Volatile solvent-free solid-state polymer-sensitized TiO2 solar cells with poly (3,4-ethylenedioxythiophene) as a hole-transporting media Chemical Communications, (Royal Society of Chemistry, UK) (2005), 17. (2259 – 2261)

32.  G.K.R. Senadeera *,  T. Kitamura , Y. Wada and S. Yanagida,Photosensitization of nanocrystalline TiO2 films by a polymer with carboxylic groups, Poly (3-thiophenemalonic acid),  and fabrication of efficient photovoltaic cells Solar Energy Materials and  Solar cells (2005) 88, 3, 15 August 2005, Pages 315-322

33. G K R senadeera *,  S  Kobayashi, T. Kitamura , Y. Wada   and     S. Yanagida. Versatile preparation method for Mesoporous TiO2 electrodes suitable for  solid-state dye sensitized photocells,Bull. Mater. Sci., Vol. 28, No. 6, October, 2005, pp. 635-641

34.G.K.R. Senadeera* and V.P.S. Perera,Photoresponses of a photovoltaic cell prepared by  CuSCN with electrodeposited C60 on mesoporous  TiO2,Chinese Journal of Physics Vol 43, 2, 384-390 (2005)

35. G.K.R. Senadeera  and  T. Mori,A new crystal structure for (BEDT–TTF)2SbF6 and some of its physical properties, Bull. Mater. Sci., Vol. 28, No. 1, February (2005), pp. 25–29.

36. G.K.R. Senadeera,Microwave assisted steps in the synthesis of  poly(3-thiophenyl acetic acid)Current Science Current Science, 88(1):  145-148 (2005)

37.Yasuteru Saito, Norihiro Fukuri, Rohan Senadeera, Takayuki Kitamura, Yuji Wada, Shozo Yanagida ,,Solid State dye sensitized solar cells using in situ polymerized PEDOTs as hole conductor,Electrochemistry Communications 6 (2004) p71–74

38. Norihiro Fukuri, Yasuteru Saito, Wataru Kubo, Rohan Senadeera, Takayuki Kitamura, Yuji Wada, Shozo Yanagida, Improvement of the Performance of Solid-State Dye-Sensitized Solar Cells Fabricated Using Poly(3,4-ethylenedioxythiophene) and an Amphiphilic Sensitizing Dye,Journal of The Electrochemical Society, 151 ,10, A1745-A1748 (2004)

39 G.K.R. Senadeera *, T. Kitamura , Y. Wada, S. Yanagida*of polyaniline via molecular self-assembly on TiO2 and its uses as a sensitiser in solid-state solar cells.Journal of Photochemistry and Photobiology A: Chemistry 164 (2004) p61–66

40 .S. Yanagida, G.K.R. Senadeera, K. Nakamura, T. Kitamura, Y. Wada, Polythiophene Sensitized TiO2 Solar Cells, Journal of Photochemistry and Photobiology A: Chemistry 166, ( 2004) p 75-80

41.G.K.R.  Senadeera * and  W.M.T.C. Pathirathne,Utilization of conducting polymer as a sensitizer in solid-state photocells,Current Science 87, 3 (2004) p 339-342

42. Susira Perera, Rohan  Senadeera *,  Kirthi Tennakone, Seigo Ito, Takayuki  Kitamura, Yuji Wada   and  Shozo Yanagida The Effect of MgO on the Enhancement of the Efficiency in Solid-State Dye Sensitized Photocells Fabricated with SnO2 and CuI,Bulletin of the Chemical Society of Japan,  Vol 76, N0.3. (2003) 659.

43. G.K.R. Senadeera, K. Nakamura, T. Kitamura, Y. Wada and S. Yanagida, Fabrication of highly efficient polythiophene sensitized metal oxide photovoltaic  cells,Applied Physics Letters (American Institute of Physics)  83, (2003), p 5470.

44. V.P.S. Perera, G.K.R. Senadeera, and K. Tennakone , Sensitization of aluminum chloride adsorbed tin(IV) oxide nanocrystalline films with Rose Bengal,Journal of Colloid and Interface Science 265 (2003) 428–431.

45. G.K.R. Senadeera*, P.V.V. Jayaweera , V.P.S. Perera and K. Tennakone,Solid-state dye sensitized photocell based on pentacene as a hole collector.,Solar Energy Materials and Solar cells Vol 73 (2002) 103-108. 

46. K. Tennakone, G.K.R. Senadeera, and P.V.V. Jayaweera,Enhancement of the energy and quantum conversion efficiencies of a photo electrochemical cell sensitized with a combination of cationic and anionic dyes.,Current Science , Vol 81, No. 1 , 76-77 ,10th July, (2001)

47.  G.R.R.A. Kunara, A. Kono, G.K.R. Senadeera, P.V.V. Jayaweera, D.B.R.A. De Silva and K. Tennakone.,Dye sensitized solar cells with the hole collector p-CuSCN deposited from a solution in n-propyl sulphide.,Solar Energy Materials and Solar cells, Vol. 69 (2) 2001 page 19-199.

48 K. Tennakone, G.K.R. Senadeera, D.B.R.A. De Silva and I.R.M. Kottegoda ,,Highly stable dye-sensitized solid-state solar cell with the semiconductor 4CuBr.3S(C4H9)2 as the hole collector.,Applied Physics Letters (American Institute of Physics) Vol 77, No. 15, 9 Oct, 2000, p2367-2369.

49. K. Tennakone, G.K.R. Senadeera, V.P.S. Perera, I.R.M. Kottegoda, and L.A.A.De Silva,Dye-sensitized photoelectrochemical cells based on porous SnO2//ZnO composite and TiO2 films with a polymer electrolyte, ,Chemistry of Materials, American Chemical Society, 1999, 11, p 2474-2477

50. P. Dyreklev, M. Granstrom, O. Inganas, L.M.W.K. Guneratne, G.K.R Senadeera, S. Skaarup and Keld West,The influence of polymerization rate on conductivity and crystallinity of electropolymerized polypyrrole.,Polymer Vol 37 No. 13 p2609-2613  (1996)

51. G.K.R. Senadeera, M.A. Careem, S. Skaarup and K. West.Enhanced ionic conductivity of Poly(ethylene imine) phosphate.Solid State Ionics 85 (1996) 37-42

52. S.Skaarup, K. West, B.Z. Christiansen, M.A. Careem and G.K.R. Senadeera:,Electrolyte effects in highly conjugated polypyrrole.Solid State Ionics 72 (1994) 108-114,

53. M.A.K.L. Dissanayake, R.P. Gunawardena, A.R. West, G.K.R. Senadeera, P.W.S.K. Bandaranayake and M.A. Careem. , Lithium Ion conducting Li4-2xGe1-xSxO4 solid electrolytes.,Solid State Ionics 62 (1993) 217-223.

54. G.K. Rohan Senadeera, Tadashi Kawamoto, Takehiko Mori, Jun-ichi Yamaura and Toshiaki Enoki ,2kF CDW Transition in b- (BEDT-TTF)2PF6 Family Salts,Journal of the Physical Society of Japan Vol. 67, No.12, December 1998, pp 4193-4197

1.A.M.J.S. Weerasinghe, M.A.K.L. Dissanayake1, G.K.R. Senadeera, V.A Senaviratne, C.A. Thotawatthage and J.M.K.W. Kumari, Application of electrospun cellulose acetate nanofibre membrane based quasi-solid state electrolyte for dye sensitized solar cells; Ceylon Journal of Science 46(2), 93-98 (2017).

2 J.M.K.W. Kumari, N. Sanjeevadharshini, M.A.K.L. Dissanayake, G.K.R. Senadeera and C.A. Thotawatthage: The effect of TiO2 photoanode film thickness on photovoltaic properties of dye-sensitized solar cells; Ceylon Journal of Science 45(1): 33-41 (2016)

3.  Senadeera G.K.R.  and de Silva N,Efficient quasi –solid dye sensitized solar cells employing molten salt electrolyte. ,Sri Lankan Journal of  Physics,  7: 15-22 (2007)

4. Fernando J.M.R.C. and Senadeera G.K.R.  , Photorsponses of  copolymers based on derivatives of thiophene units. Ceylon Journal of Science (Physical Sciences), 12: 37-46 (2007).

5. Senadeera G.K.R. and De Silva N.  ,Efficient  Quasi-Solid Dye Sensitized Solar Cells Employing Molten Salt Electrolyte.,Journal of  Institute of Physics, Sri Lanka, 7: 15-22 (2006).

6. G.K.R. Senadeera*   and K-J. Jiang,Synthesis of Triphenylamine Trisazo dye and its uses in dye sensitized solar cells,Sri Lankan Journal of Physics, 2005 Vol 6 (43-50)

7. G.K.R. Senadeera,Spray–painted nanostructured TiO2 electrodes for solid-state dye sensitized photocells,Sri Lankan Journal of Physics, 5 (2004) 17-25

8. Ekanayake, P.,Iskandar, M., Tennakoon, K., Ming, L. C., Yoong, V.N., Zain. ., Senadeera, R., Yoshikawa, S.,Fabrication of Eco-friendly Dye Sensitized solar cells using pigments from melatoma malabathricum I., A native plant in Borneo.,Ceylon Journal of Science (Physical Sciences) vol 16, 65-70. (2012)

2022

  1. W.A.C.J. Wengappuliarachchi,C.A. Thotawatthage,M.A.K.L. Dissanayake, G.K.R. Senadeera,

    “PVA/ (2-Propanol) based bee honey (core) and povidone-iodine (Sheath) coaxial electrospun beads on string nanofibrous scaffold for controlled drug release”
    International Open University Research Sessions 2022 (iOURS 2022) 

2021

  1. “J.M.K.W. Kumari,M.A.K.L. Dissanayake, G.K.R. Senadeera” Application of Low-Cost Graphite Counter Electrode for Dye-Sensitized Solar Cells: A Comparative Study on Sintering Temperature

  2. J.M.K.W. Kumari,M.A.K.L. Dissanayake, G.K.R. Senadeera “Effect of film thickness of Reduced Graphene Oxide counter electrodes on photovoltaic properties of dye sensitized solar cells”Conference: Open University Research Sessions 2021 (OURS 2021) at The Open University of Sri Lanka

  3. J.M.K.W. Kumari,M.A.K.L. Dissanayake, G.K.R. Senadeera “Development of counter electrode materials for dye-sensitized solar cells using Sri Lankan natural vein graphite”31st International Conference on Diamond and Carbon Materials – Spain

  4. Sanuri Hettiarachchi,M.A.K.L. Dissanayake, G.K.R. Senadeera,Umair khaleelullah “Optimization of Photovoltaic Performance of Electrospun PVdF-HFP Nanofiber Membrane Based Dye Sensitized Solar Cells with Membrane Thickness” 5th International Research Conference of Uva Wellassa University (IRCUWU2021) Badulla, Sri Lanka

  5. J.M.K.W. Kumari,M.A.K.L. Dissanayake, G.K.R. Senadeera “Application of Thermally Reduced Graphene Oxide-based Counter Electrode for Dye-sensitized Solar Cells: A Comparative Study on Sintering Temperature” 5th International Research Conference of Uva Wellassa University (IRCUWU2021) Badulla, Sri Lanka

  6. W.I.Sandamali,G.K.R.Senadeera,M.A.K.L. Dissanayake,T.Jaseetharan “The photovoltaic performance of CdS quantum dots sensitized solar cell using Ag/TiO2 photoanode” 8th Ruhuna International Science & Technology Conference, University of Ruhuna, Matara, Sri Lanka

2020

  1. Umair khaleelullah,M.A.K.L. Dissanayake,G.K.R.Senadeera “Efficiency enhancement in SnO2 based dye-sensitized solar cells by incorporating plasmonic gold nanoparticles”PGIS RESEARCH CONGRESS 2020 Postgraduate Institute of Science, University of Peradeniya, Sri Lanka

  2. H.T.G.Shashintha,Manel Sarangika,V.P.S.Perera,M.A.K.L. Dissanayake, G.K.R. Senadeera”Gel polymer electrolytes based on fumed silica filler for magnesium batteries National Conference” on Multidisciplinary Research-2020

  3. T.Jaseetharan,M.A.K.L. Dissanayake, G.K.R. Senadeera”Efficiency enhancement in dye-sensitized solar cells by co-sensitization with CdS quantum dots” Proceedings of 7th Ruhuna International Science & Technology Conference. University of Ruhuna, Matara

  4. Umair Khaleelullah,M.A.K.L. Dissanayake, G.K.R. Senadeera”Acetonitrile free liquid electrolyte for dye-sensitized solar cells” 7th Ruhuna International Science & Technology Conference At: University of Ruhuna, Matara

2019

  1. T.Jaseetharan,M.A.K.L. Dissanayake, G.K.R. Senadeera”Surface Plasmon resonance effect of Au nanoparticles on the efficiency of CdS quantum dot-sensitized solar cells” Proceedings of the Postgraduate Institute of Science Research Congress At: University of Peradeniya, Sri Lanka

  2. Umair Khaleelullah,M.A.K.L.Dissanayake,G.K.R.Senadeera,J.M.K.W. Kumari,C.A. Thotawatthage,T.Jaseetharan”THE EFFECT OF INCORPORATING A MIXTURE OF TiO2 P25 AND P90 IN THE PHOTOANODE TOWARDS THE EFFICIENCY ENHANCEMENT IN DYE-SENSITIZED SOLAR CELLS” International Conference on Advanced Materials for Clean Energy and Health Applications At: University of Jaffna, Sri Lanka

2018

  1. K. Paramanathan, M.A.K.L. Dissanayake, G.K.R. Senadeera, C.A. Thotawatthage, K. Balashangar, P. Ravirajan; Efficiency enhancement in CdS/CdTe thin film solar cells by optimizing the growth of CdS film and CdTe surface treatment; proceedings of Solar Asia 2018 Int. Conf., Institute of Fundamental Studies, Kandy, Sri Lanka (2018) 40-45.
  2. B. Dushyanthini, M.A.K.L. Disanayake, G.K.R. Senadeera, A.M.J.S. Weerasinghe, C.A. Thotawattage and D.L.N. Jayathilaka; Performance Enhancement of TiO2 Based Dye Sensitized Solar Cells by Employing Triple Layered Photanode Consisting with Nanofibres of TiO2; proceedings of Solar Asia 2018 Int. Conf., Institute of Fundamental Studies, Kandy, Sri Lanka (2018) 130-135.
  3. J.M.K.W. Kumari, M.A.K.L. Dissanayake, G.K.R. Senadeera and C.A. Thotawatthage; TiO2 Photo-Anode with N-doped TiO2 for Efficiency Enhancement in Dye Sensitized Solar Cells; proceedings of Solar Asia 2018 Int. Conf., Institute of Fundamental Studies, Kandy, Sri Lanka (2018) 137.
  4. C.A. Thotawatthage, M.A.K.L. Dissanayake, G.K.R. Senadeera and B.-E. Mellander; Incorporation of Tertiary Alkaline Iodide Salts in Polyacrylonitrile (PAN) Based Gel Polymer Electrolytes Toward the Efficiency Enhancement of Dye Sensitized Solar Cells; proceedings of Solar Asia 2018 Int. Conf., Institute of Fundamental Studies, Kandy, Sri Lanka (2018) 140-147.
  5. A.M.J.S. Weerasinghe, M.A.K.L. Dissanayake, G.K.R. Senadeera, C.A. Thotawatthage and V.A. Senevirathne; Incorporation of Triple Layered Structure of Tin Oxide Photoanode Towards the Efficiency Enhancement in Dye Sensitized Solar Cells; proceedings of Solar Asia 2018 Int. Conf., Institute of Fundamental Studies, Kandy, Sri Lanka (2018) 148.
  6. M.A.M. Ziyan, M.A.K.L. Disanayake, U.L. Zainudeen, G.K.R. Senadeera and C.A. Thotawatthage; Study of Dye-Sensitized Solar Cells with TiO2 Nanoparticles/Nanofibers Composite Electrode Using Photovoltaic and EIS Measurements; proceedings of Solar Asia 2018 Int. Conf., Institute of Fundamental Studies, Kandy, Sri Lanka (2018) 149-158.
  7. T. Jaseetharan, M.A.K.L. Dissanayake, G.K.R. Senadeera and C.A. Thotawatthage; Enhancing the Performance of PbS:Hg Quantum Dot – Sensitized Solar Cells by Controlling the Surface Charge of TiO2 Electrode; proceedings of Solar Asia 2018 Int. Conf., Institute of Fundamental Studies, Kandy, Sri Lanka (2018) 159-163.

2017

8. Poly (vinylidene fluoride-hexafluoropropylne) and fumed silica based nano-composite electrolyte for efficient dye sensitized solar cellsWeerasinghe A.M. J. S. , DissanayakeM.A.K.L., Senadeera G.K.R., Thotawatthage C.A. Kumari J.M.K.W.ISSN: 1391-8795, Proceedings of  4th Ruhuna International Science & Technology Conference University of Ruhuna, Matara, Sri Lanka, January 26,2017, p 45.

9. Influence of cation concentration in the electrolyte on photovoltaic performance of dye sensitized solar cells,J.M. K.W. Kumari,  M.A.K.L. Dissanayake, G.K.R. Senadeera, C. A. Thotawatthage and A. M. J. S. Weerasinghe. ISSN: 1391-8795, Proceedings of  4th Ruhuna International Science & Technology Conference University of Ruhuna, Matara, Sri Lanka, January 26,2017, p 43.

10. Low, cost, highly efficient TiO2 based Electrochromic device for architectural applications. H.N.M. Sarangika, G.K.R. Senadeera, M.A.K.L. Dissanayake, W.G.M.D. Karunarathne, M.G.A.N. Perera.ISSN: 1391-8795, Proceedings of  4th Ruhuna International Science & Technology Conference University of Ruhuna, Matara, Sri Lanka, January 26,2017, p 40.

2016

11. J.M.K.W. Kumari, G.K.R. Senadeera, M.A.K.L. Dissanayake, C.A. Thotawatthage, Dependence of photovoltaic parameters on the size of cations adsorbed by TiO2 photo-anode in dye sensitized solar cells, 15th Asian conference on solid state ionics (ACSSI 2016), Indian institute of Technology, Patna, India, 161, (2016). (abstract)

12. H.N.M. Sarangika. , M.A.K.L Dissanayake., G.K.R Senadeera., R.R.D.V Rathnayake., H.M.J.C Pitawala, C.A Thotawattage, Polyethylene oxide and ionic liquid based solid polymer electrolyte for rechargeable Magnesium batteries. 15th Asian conference on solid state ionics (ACSSI 2016), Indian institute of Technology, Patna, India, 27, (2016). (abstract)

13. A.M.J.S. Weerasinghe, C.A. Thotawatthage, M.A.K.L. Dissanayake and G.K.R. Senadeera: Eco-Friendly dye sensitized solar cells made with natural pigment from fire furn and bio degradable polymer electrolyte; South Asian Symposium on Sustainable Environment Management – poster and extended abstract p 23 (2016)

14.C.A. Thotawatthage, J.M.K.W. Kumari, A.M.J.S. Weerasinghe, P.W. Abeygunawardhana, G.K.R.Senadeera, M.A.K.L.   Dissanayake, Properties   andcharacterization of Anthocyanin dye extracted from Rhizomatous sp. (Black Velvet) for Dye sensitized solar cells, 5th Workshop on thin film solar cells and their science andtechnology, University of Kelaniya, Sri Lanka (2016) (Poster ) p 36.

2015

15.H.N.M. Sarangika, G.K.R. Senadeera, M.A.K.L. Dissanayake, K.V.L. Amarasinghe, C. A. Thotawattage, W.A.R.B. Weerasekera,V.A. Seneviratne, SnO2 as a cathode material for rechargeable Magnesium batteries, 2nd Ruhuna International Science and Technology Conference (RISTCON) University of Ruhuna, Sri Lanka, 22nd-23rd January, 2015.

16.J. Weerasinghe, G. K.R.Senadeera, V. A. Senevirathne, C. A. Thotawatthage and J.M.K.W. Kumari; Dye sensitized solar cells fabricated with polymer free quasi solid state (gel) electrolyte; 2nd Ruhuna International Science and Technology Conference (RISTCON) University of Ruhuna, Sri Lanka, 22nd-23rd January, 2015.

17..J.M.K.W. Kumari, M.A.K.L. Dissanayake, G.K.R. Senadeera and C.A. Thotawatthage; Plasmonic dye sensitized solar cells with TiO2 photo-anodes incorporating Gold and Silver nanoparticles; 5th International Conference on Functional Materials & Devices (ICFMD 2015), Johor Bahru, Malaysia; (2015)

18.J. Weerasinghe, M.A.K.L. Dissanayake, G.K.R. Senadeera, V.A Senaviratne and C. A. Thotawatthage; Novel Fumed Silica based, quasi-solid state electrolyte for Dye Sensitized Solar cells; 5th International Conference on Functional Materials & Devices (ICFMD 2015), Johor Bahru, Malaysia; (2015)

19.H.K.D.W.M.N.R.Divaratne, H.N.M.Sarangika, M.A.K.L. Dissanayake, G.K.R.Senadeera, P.M.P.C.Ekanayake, C.A. Thotawattage Enhancement of Photoelectric Performance of Dye-Sensitized Solar Cells Made With Rice Grain-Shaped TiO2 Nanostructure, 5th International Conference on Functional Materials & Devices 2015 (ICFMD – 2015) 4 – 6 August 2015, Johor Bahru, Malaysia.

20.M.A.K.L. Diasanayake , G.K.R. Senadeera , H.N.M. Sarangika , P.M.P.C. Ekanayake , C.A. Thotawattage , H.K.D.W.M.N.R. Divarathne and  J.M.K.W. Kumari, TiO2 as low cost, multi-functional material,5th International Conference on Functional Materials & Devices 2015 (ICFMD – 2015) 4 – 6 August 2015, Johor Bahru, Malaysia.

2014

21. H.N.M.Sarangika, G.K.R.Senadeera, M.A.K.L.Dissanayake, Use of TiO2 as electrochromic material with Chitosan gel polymer electrolyte in low cost Electrochromic Smart windows., Conference proceedings , International conference RISTCON 2014, 1st Ruhuna International Science and Technology Conference, University of Matara,  Sri Lanka, 22nd January 2014. , p146. (Extended Abstract)

22.H.N.M. Sarangika, W.A.R.B. Weerasekara, G.K.R. Senadeera, M.A.K.L. Dissanayake, K,V.L. Amarasinghe, C.A. Thotawatthage and V.A. Senevirathne; Use of carbon embedded TiO2 as cathode material in rechargeable Mg batteries with Polyethylene Oxide based Gel electrolyte; Proceeding of the Ipurse, International Research Sessions , University of Peradeniya, Sri Lanka, 18, p469 (2014 july 4,5) (Full paper)

23. H.N.M.Sarangika, G.K.R.Senadeera, M.A.K.L.Dissanayake,Use of TiO2 as electrochromic material with Chitosan gel polymer electrolyte in low cost Electrochromic Smart windows., Conference proceedings , International conference RISTCON 2014, 1st Ruhuna International Science and Technology Conference, University of Matara, Sri Lnka, 22nd January 2014. , p146. (Extended Abstract)

24. H.N.M. Sarangika, W.A.R.B. Weerasekera, G.K.R. Senadeera, M.A.K.L.  Dissanayake, K.V.L. Amarasinghe, H.K.D.W.M.N. R. Divaratne, V.A. Seneviratna,Performances of TiO2 as cathode material in rechargeable Mg batteries with Polyethylene oxide based gel electrolyte,, (Conference proceedings, full paper) 4th Asian Conference on Solid State Ionics, Singapore, 24 – 27 June 2014, page 28-36. (File No. 075.xml)

25. H.N.M.Sarangika, G.K.R.Senadeera, M.A.K.L.Dissanayake, Use of TiO2 as electrochromic material with Chitosan gel polymer electrolyte in low cost Electrochromic Smart windows., Conference proceedings , International conference RISTCON 2014, 1st Ruhuna International Science and Technology Conference, University of Matara, Sri Lanka, 22nd January 2014.2014 , p166. (Extended Abstract)

26. H.N.M. Sarangika,  G.K.R. Senadeera, H.K.D.W.M.N. R. Divaratne, P .M. P.C. Ekanayake, C.A. Thotawattage , M.A.K.L. Dissanayake, High performance dye-sensitized solar cells with PEO based gel polymer electrolyte using TiO2 nano fibers developed by electrospinning, 4th Asian Conference on Solid State Ionics, Singapore, 24 – 27 June 2014, p124(Abstract only)(File No 124.xml)

27. H.N.M. Sarangika, G.K.R. Senadeera, H.K.D.W.M.N. R. Divaratne, M.A.K.L. Dissanayake,Electrospun polyacrylonitrile (PAN) nanofibre membrane gel electrolyte for electrochromic devices. International Conference on Material Science and Technology (ICMST), 13th- 17th October, 2014 – Indonesia (Abstract) p 44.

28. K.Paramanathan, M.A.K.L.Dissanayake, G.K.R.Senadeera, C.A.Thotawattage, P.Ravirajan4, K. Balashankar,  Annealing effect of CdS thin films prepared by chemical bath deposition method., International Conference on Material Science and Technology (ICMST), 13th- 17th October, 2014 – Indonesia, book of program abstracts (Abstract) (MED 001) p 30

29. J.M.K.W. Kumari1, G.K.R. Senadeera, C.A. Thotawatthage, M.A.K.L. Dissanayake, Efficiency enhancement of dye sensitized solar cells by tio2 photoanode modification with silver nano particles, International Conference on Material Science and Technology (ICMST), 13th- 17th October, 2014 – Indonesia, book of program abstracts (Abstract) (MED 002) p 31

30.K. Paramanathan, M.A.K.L.Dissanayake, G.K.R.Senadeera, C.A. Thotawattage, P.Ravirajan; Optimizing growth process of CdS semiconductor thin films for efficiency enhancement in CdS/CdTe solar cells; Conference proceedings ,  RISTCON 2014, 1st Ruhuna International Science and Technology Conference, University of Matara, Sri  Lanka, 22nd January 2014, p49      (Extended Abstract)

31. M. Amarasinghe, M.A.K.L. Dissanayake, B.S. Dasanayake, G.K.R. Senadeera and C.A. Thotawatthage; Effect of the nano-structure of TiO2 photoanodes on the performance of dye sensitized solar cells; Conference Proceeding of the Ipurse, International Research Sessions University of Peradeniya, Sri Lanka,  18, p497 (2014 july 4,5) (Full paper)

32.H.N.M. Sarangika, W.A.R.B. Weerasekera, G.K.R. Senadeera, M.A.K.L. Dissanayake, K.V.L. Amarasinghe, C. A. Thotawattage, V.A. Seneviratne Use of carbon embedded TiO2 as cathode material in rechargeable Mg batteries with Polyethylene Oxide based gel electrolyte, Conference Proceeding of the Ipurse, International Research Sessions University of Peradeniya, Sri Lanka,  18, p    ,   (2014 july 4,5) (Full paper)

33. H.N.M.Sarangika , G.K.R. Senadeera,   C. A. Thotawattage  and   M.A.K.L.Dissanayake,Electrochromic smart windows based on Chitosan gel polymer electrolyte and Lithium salts, , Conference Proceeding of the Ipurse, International Research Sessions University of Peradeniya, Sri Lanka,  18, p    ,   (2014 july 4,5) (Full paper)

2013

34. T.M.W.J Bandara, W.J.M.J.S.R. Jayasundara, M.A.K.L. Dissanayake, C.A. Thotawatthage, G.K.R. Senadeera, L.R.A.K. Bandara and B.-E. Mellander; Dye sensitized solar cells based on nano porous TiO2 and gel polymer electrolytes containing tetrapropyle ammonium iodide and 1-methyl-3-propyl imadazolium iodide binary iodide system; Solar Asia 2013 Int. Conf., CIUM, University of Malaya, Kuala Lumpur, Malaysia (2013) 111-116

35.H.N.M. Sarangika, G.K.R. Senadeera, C.A.Thotawaththage, M.A.K.L.Dissanayake,Novel quasi Solid State Electrochromic Smart windows Based on TiO2 and SnO2 Electrode with PMMA gel electrolyte.,,Solar Asia 2013 Int. Conf., CIUM, University of Malaya, Kuala Lumpur, Malaysia (2013) 169-174

36.P.W. Abeygunawardhana, C.A. Thotawatthage, G.K.R. Senadeera and M.A.K.L. Dissanayake; Efficiency dependence on dipping time and pH value of natural dye of nanocrystalline, nanoporous TiO2 photo sensitizer; Solar Asia 2013 Int. Conf., CIUM, University of Malaya, Kuala Lumpur, Malaysia (2013) 117-122

37.T.R.C.K. Wijayarathna, Y.P.Y.P Ariyasinghe, G.K.R. Senadeera, V.P.S. Perera and C.A. Thotawatthage; Use of surface Plasmon resonance of gold nanoparticles in the efficiency enhancement of dye sensitized solar cells with TiO2; Solar Asia 2013 Int. Conf., CIUM, University of Malaya, Kuala Lumpur, Malaysia (2013) 123-130

38.H.K.D.W.M.N.R. Divarathne, M.A.K.L. Dissanayake, G.K.R. Senadeera, C.A. Thotawatthage; Quasi-solid state dye sensitized solar cells based on electrospunpolyacrylonitrile (PAN) nanofiber membrane electrolyte; Solar Asia 2013 Int. Conf., CIUM, University of Malaya, Kuala Lumpur, Malaysia (2013) 131-136

39.S.L. Jayaratne, M.A.K.L. Dissanayake, V.A. Senaviratne, C.A. Thotawatthage and G.K.R. Senadeera; Efficiency enhancement in dye sensitized solar cells based on blended polymer electrolyte PMMA:PEG with Pr4NI as the iodide salts; Solar Asia 2013 Int. Conf., CIUM, University of Malaya, Kuala Lumpur, Malaysia (2013) 137-142

40.W.N.S. Rupasinghe, C.A. Thotawatthage, M.A.K.L. Dissanayake, G.K.R. Senadeera and V.A. Seneviratne; Efficiency enhancement of dye sensitized solar cells by TiO2 nano fillers in polymer electrolyte; Solar Asia 2013 Int. Conf., CIUM, University of Malaya, Kuala Lumpur, Malaysia (2013) 143-148

41. T.M.W.J Bandara, W.J.M.J.S.R. Jayasundara, M.A.K.L. Dissanayake, C.A. Thotawatthage, G.K.R. Senadeera, L.R.A.K. Bandara, and B.E. Mellander,Dye sensitized solar cells  based on nanoporous TiO2 and gel polymer electrolytes containing tetrapropyl ammonium iodide and 1 methyl 3 propylimidazolium iodide binary iodide system.Solar Asia 2013,Conference proceedings , University of Malaya, KL, Malysia (22-24August 2013)page 111-116

2012

42. Senadeera, R., Gunathilake., S., Thotawatthage, C.,  Ekanayake., P., and  Dissanayake, L., (2012)  Novel blended PVdF-PEO nanocomposite polymer electrolyte with mixed cations and its application in dye sensitized solar cells.SUSTAINABLE FUTURE ENERGY 2012 and 10th SEE FORUM,  Innovations for Sustainable and Secure Energy. 21-23 November 2012, Brunei Darussalam P

43. Senadeera, R.  and Dissanayake, L. (2012), Sri Lanka: Towards a Renewable Energy Island,  SUSTAINABLE FUTURE ENERGY 2012 and 10th SEE FORUM,  Innovations for Sustainable and Secure Energy. 21-23 November 2012, Brunei Darussalam, P

2011

44. Synthesis and characterization of blended pvdf-peo nanocomposite polymer electrolyte and its application in dye sensitized solar cells  Rohan Senadeera , Samodha Gunathilake , Piyasiri Ekanayake ,Lakshman Dissanayake .POLYCHAR 19 – World Forum on Advanced Materials March 20-24, 2011, (p 261)Kathmandu, Nepal 151

45.Chathuranga Thotawattage and Rohan Senadeera., Quasi solid natural rubber polymer electrolytes for dye sensitized solar cells,POLYCHAR 19 – World Forum on Advanced Materials March 20-24, 2011, (p 250) Kathmandu, Nepal.

46. K. Kumaraarachchi, M.A. Careem, G.K.R. Senadeera, T.M.W.J. Bandara,,B.E. Mellander, Polymer Electrolyte Based CdS Quantum Dot Sensitized Solar Cells,Proceedings Of  Solar Asia 2011 Int. Conf., Institute Of Fundamental Studies, Kandy, Sri Lanka ( 28-30 July 2011) 96

47.L.R.G.Wickramasinghe, V.P.S.Perera, G.K.R.Senadeera, Suppression Of Recombination In Dye Sensitized Solar Cells Based On TiO2 With Barrier Layer Of Metal Oxides, Proceedings Of  Solar Asia 2011 Int. Conf., Institute Of Fundamental Studies, Kandy, Sri Lanka ( 28-30 July 2011) 148

48.H. Iqbal, K. Perera, V.A. Seneviratne, W.N.S. Rupasinghe, C.A. Thotawatthage, G.K.R. Senadeera And M.A.K.L. Dissanayake, Dye Sensitized Solar Cells With Polymethylmethacrylate (PMMA) Based Gel Polymer Electrolyte And Tetrapropylammonium Iodide Salt (Pr4n+I-),Proceedings Of  Solar Asia 2011 Int. Conf., Institute Of Fundamental Studies, Kandy, Sri Lanka ( 28-30 July 2011) 163-168

49.C.A. Thotawatthage, G.K.R. Senadeera, T.M.W.J. Bandara, M.A.K.L. Dissanayake Mixed Cation Effect In Enhancing The Efficiency Of Dye Sensitized Solar Cells Based On Polyacrylonitrile (Pan) And Nano-Porous TiO2, Solar Asia 2011 Int. Conf., Institute Of Fundamental Studies, Kandy, Sri Lanka ( 28-30 July 2011) 175-179

50. P. W. Abeygunawardhana, S. Palamakubura, C.A. Thotawattage, M.A.K.L. Dissanayake And G.K.R. Senadeera, Nanocrystalline Tio2 Photo-Sensitized With Natural Dyes,Proceedings Of .Solar Asia 2011 Int. Conf., Institute Of Fundamental Studies, Kandy, Sri Lanka ( 28-30 July 2011) 229-235

51. P.D.N.Gunasekara, Y.P.Y.P. Ariyasinghe, T.R.C.K. Wijayarathna, C.A. Thotawatthage, M.A.K.L. Dissanayake And G.K.R. Senadeera, Efficient Quasi- Solid Poly (Acrylonitrile) (Pan) Based Polymeric Electrolyte For Dye Sensitized Solar Cells And Its Characteristics,Proceedings Of Solar Asia 2011 Int. Conf., Institute Of Fundamental Studies, Kandy, Sri Lanka ( 28-30 July 2011) 180-185.

52..H. A. C. S. Perera, K. Perer , K. Vidanapathirana , V.A. Seneviratne, W.N.S. Rupasinghe, C.A. Thotawatthage, G.K.R. Senadeera And M.A.K.L. Dissanayake, Quasi-Solid State Dye Sensitized Solar Cells With Poly(Vinylidenefluoride) (Pvdf) Based Gel Polymer Electrolyte And Nano-Porous Tio2 Electrode Proceedings Of Solar Asia 2011 Int. Conf., Institute Of Fundamental Studies, Kandy, Sri Lanka ( 28-30 July 2011) 186-192

53. C.N. Nupearachchi *, C.A. Thotawatthage , G.K.R. Senadeera And V.P.S. Perera , Comparison Of Natural Pigments In Black Tea And Green Tea With DSSCs, Proceedings Of Solar Asia 2011 Int. Conf., Institute Of Fundamental Studies, Kandy, Sri Lanka ( 28-30 July 2011) 241-245

54. Piyasiri Ekanayake, Rina Zain, Mohamed Iskandar, Kushan Tennakoon, Susumu Yoshikawa And Rohan Senadeera, Evaluation Of Dyes From Melastroma Malabathricum: A Native Plant Of Borneo, As Potential Natural Colour For Dye-Sensitized Solar Cells, Proceedings Of Solar Asia 2011 Int. Conf., Institute Of Fundamental Studies, Kandy, Sri Lanka ( 28-30 July 2011) 246

2010

55. I. Bernacka-Wojcik, R. Senadeera , P.J. Wojcik, L. Bione Silva, G. Doria, P. Baptista, H. Aguas, E. Fortunato, R. Martins, Colorimetric DNA Biosensor Based On Gold Nanoparticles And Inkjet Printed Nanocrystalline TiO2 Photodetector, 3rd International Conference on Advanced Nano Materials (ANM 2010) 12-15 September 2010 – Agadir, Morocco, 278

56. Iwona Bernacka-Wojcik, Rohan Senadeera, Pawel Jerzy Wojcik, Leonardo Bione Silva, Goncalo Doria, Pedro Baptista, Hugo Aguas, Elvira Fortunato, Rodrigo Martins. Inkjet printed and “doctor blade” TiO2 photodetectors for DNA biosensors. Abstract  and  Poster, 67, NanoBioTech-Montreux 2009, 16-18 Nov 2009, Montreux, Swizerland

 

57.I. Bernacka-Wojcik, R. Albuquerque, J. Pinto, L. Silva, P. J. Wojcik, R. Senadeera, G. Doria, H. Aguas, P. Baptista, R. Martins, E. Fortunato, Towards price reduction in biodetection, presented on II Anual Meeting of the Institute of Nanostructures, Nanomodelling and Nanofabrication, 5-6 Febuary 2010, Fatima, Portugal

 

58.W.S.S. Gunathilake, G.K.R. Senadeera* , P. Ekanayake, V. Seneviratne, M.A.K.L. Dissanayake and A.D.L.C. Perera , .  Manuscript entitled “Quasi Solid-State Nano Composite Polymer Electrolytes based on PVdF-PEO blend and their Applications in Dye Sensitized Solar Cells”  in  Solid State Ionics,  Fundamental Researches and Technological Applications .p 1167-1174,  Proceedings of  12th Asian Conference on Solid State Ionics, China,  (full paper) Ed: B.V.R. Chodari, H. Liu, W. Chen, Q. Xu and Z Yu.2010

59. Bernacka-Wojcik, I., Senadeera, R., Wojcik, P.J., Silva, L.B., Doria, G., Baptista, P., Aguas, H., Fortunato, E., Martins, R. Inkjet printed and “doctor blade” TiO2 photodetectors for DNA biosensors. Poster presentation at the Biosensors 2010 Congress, 26-28 May 2010, Glasgow, United Kingdom.

2009

60. P. J. Wojcik, I. Bernacka-Wojcik, R. Senadeera, P. Baptista, E. Fortunato, R. Martins. Inkjet printed titanium dioxide for dye sensitized photodetectors, Poster  in  Plastic Electronics Europe 2009, Maritim Dresden, Dresden, Germany, 27-29 October 2009.

61. Bernacka-Wojcik, I., Senadeera, R., Wojcik, P.J., Silva, L.B., Doria, G., Baptista, P., Aguas, H., Fortunato, E., Martins, R. From gold nanoparticles to “toothpaste” for DNA detection,

Oral presentation, Workshop Nano 09, 10-11 December 2009, Braga, Portugal .

2006

62. J..R.C. Fernando and G.K.R. Senadeera, Photo-responses of copolymers based on derivatives of thiophene units,Proceedings of the Asian Conference on Solar Energy Materials and  Solar Cells, University of Peradeniya, Sri Lanka (2006)  p19.

2004

63. G.K. Rohan Senadeera, Kazuki Nakamura, Takauki Kitamura,Yuji Wada and  Shozo Yanagida, Fabrication of Efficient Polymer-sensitized Solar Cells

Third Trivandrum International Symposium On  Recent Trends In Photochemical Sciences, India, February, 2004, p-03,page  37

2003

64. G.K.R. Senadeera*,   T. Kitamura , Y. Wada and S. Yanagida, Electrochemical deposition of polypyrrole on surface modified TiO2 and its application as sensitizer and hole conductor in solid-state photocells, XXIst Int. Conference on Photochemistry, NARA, Japan, July 26-31, 2003. Conference proceedings, 5P017, p559.

65G.K.R. Senadeera*,  S. Kobayashi, T. Kanzaki, T. Kitamura , Y. Wada and S. Yanagida, Physical properties of spray painted TiO2 films and their evaluation in  solid state dye-sensitized photocells. XXIst Int. Conference on Photochemistry, NARA, Japan, July 26-31, 2003, Conference Proceedings, 2P018, p320.

66.G.K.R. Senadeera* ,   T. Kitamura , Y. Wada and S. Yanagida, Deposition of polyaniline via molecular self-assembly on TiO2 and its uses as a sensitizer in solid state solar cells, Dye solar cells pre–symposium , (satellite conference of XXIst Int. Conference on Photochemistry) . Osaka, Japan, July 25, 2003.

67. Shozo Yanagida, G.K. Rohan Senadeera1, Kazuki Nakamura, Takauki Kitamura and Yuji Wada,  Electron diffusion control in dye-sensitized tio2 solar cells: fabrication of efficient polymer-sensitized solar cells, The 6th AIST International symposium on Photorecetion Control and Photofunctional Materials (PCPM 2003), Confer. proceedings, Japan , October 29-31, 2003 p 53.

68. V.P.S.Perera, G.K.R.  Senadeera* and K. Tennakone, The effect of aluminum on photocurrent increment in dye sensitized photoelectrochemical cells based on nanocrystalline SnO2 films. Third Asian photochemistry conference (APC-2002) 6-11 January, Mumbai, India.p 45.

69. S. Kobayashi, T. Kitamura, S. Ito, T. Masaki, G.K.R. Senadeera, G.R.A. Kumara, A. Konno, K. Tennakone, Y. Wada and S. Yanagida, The effect of Imidazolium salt on the hole transport property of copper iodide as a hole collector of solid –state dye dye sensitized solar cells, Meeting abstracts, The Electrochemical Society of Japan, Tokyo, Japan, March, 2003, 3P24. p 373.

70. N. Fukuri, Y. Saito, G.K.Rohan Senadeera, T. Kitamiira, Y. Wada and S. Yanagida. Application of in-situ photo-electrochemically polymerized by Poly(3, 4-ethylenedioxythiohene) to dye sensitized solar cells. Meeting abstracts, The Electrochemical Society of Japan, Tokyo Japan, March, 2003, 3P22 page 372.

 71.Shozo Yanagida, G.K. Rohan Senadeera, Kazuki Nakamura, Takauki Kitamura and Yuji Wada, Fabrication of highly efficient polytiophene sensitized metal oxide photovoltaic cells, Meting abstracts, Photochemistry Society of Japan, Himane, Japan,  November, 2003.p

2002

72.G.K.R. Senadeera*, D.B.R.A. De  Silva, P.V.V. Jayaweera  and K. Tennakone, .  p-4CuBr.3S(C4H9)2 : promising material as the hole collector in solid state dye sensitized photovoltaic cells with TiO2, Third Asian photochemistry conference (APC-2002) 6-11 January, Mumbai, India.p 46.

73. V.P.S.Perera, G.K.R. Senadeera *, K. Tennakone, S. Ito, Y. Wada and S. Yanagida, Solid state dye sensitized photocells fabricated with nanocrystalline SnO2 covered with a thin layer of MgO.,14th international conference on photochemical conversion and storage of solar energy, August 4-9, 2002, Sapporo, Japan.W-1-P-57.

74.. Rohan Senadeera* and P.V.V. Jayaweera, Effect of deposition current density on the properties of  poly (3 methyl thiophene) and it’s uses as sensitizer in  photocells. Meeting abstracts, The Electrochemical Society of Japan, Atsugi, Japan, September 2002, 2E 23, P 139.

75.. G.K. R. Senadeera, T. Kawamoto, T. Mori, J. Yamaura and T. Enoki,Temperature dependence of the resistivity and magnetic susceptibility of  b- (BEDT-TTF)2PF6 Family Salts, Solid State Ionics, Science and Technology, Proceedings of the 6th Asian conference on Solid State Ionics, New Delhi, India, 1998 December, page 155

76. Metal insulator Transition in  b- (BEDT-TTF)2PF6 Family Salts,G.K. R. Senadeera, T. Kawamoto, T. Mori, J. Yamaura and T. Enoki,Meeting abstracts of the Physical society of Japan, Japan, Vol. 53, part 1, (1998) 232

77. Metal insulator Transition and overlap integrals in  b- (BEDT-TTF)2PF6 Family Salts,G.K. R. Senadeera, T. Kawamoto, T. Mori, J. Yamaura and T. Enoki.,Meeting abstracts of the Spring meeting of Japanese Chemical society, Tokyo, Japan, p , 1998

78. ESR study of the dependence on oxidation state and conjugation length of polarons,bipolarons in conducting polypyrrole films.,A. Morgenstjene, G.K.R. Senadeera and Steen Skaarup.Presented at the International workshop on  “In VIVO” ESR and ESR Imaging Italy (1995).

79. G.K.R. Senadeera , M.A. Careem , S.Skaarup, K. West,,Dependence of optical and electrical properties of polypyrrole films on  polymerization,current density, Solid State Ionics, Recent Developments, 21 (1996) , p243

80. A. Morgenstjene, G.K.R. Senadeera ,  Steen Skaarup, and Keld West,ESR on Polypyrrole: polarons  and bipolarons in polymers with high  and low conjugation Solid State Ionics, Recent Developments, 21 1996 , p 165

 

2. LOCAL Conference/ meetings proceedings /extended abstracts/abstracts

1. C.A. Thotawatthage, J.M.K.W. Kumari, A.M.J.S. Weerasinghe, P.W. Abeygunawardhana, G.K.R.   Senadeera, M.A.K.L.   Dissanayake, Properties&

1. Sri Lanka patent No. 11982

Dye sensitized solid-state solar cell with Copper (I) Bromide-alkyl sulphide complex (CuBr.R2S) as the positive charge collecting p-type semiconductor material. K. Tennakone, G.K.R. Senadeera and D.B.R.A. De Silva

2. Japanese Patent (JP2005135656)

Photoelectric Conversion Element- Polymer sensitized solar cells with some thiophene derivatives.Inoue Teruhisa, Shigaki Koichiro, Ikeda Masaaki , Yanagida Shozo  , Rohan Senadeera ,Kitamura Takayuki, Japanese Patent applied by Nippon Kayaku Co, Ltd, Japan – NKS  (JP2005135656) (lens.org/183-208-708-381-718)

(https://www.lens.org/lens/patent/JP_2005135656_A

3. Portuguese Patent  by Y-Dreams, PT 104634A, Portugal

Método De Preparação Duma Tinta Electrocrómica Para Impressão Por Jacto De Tinta Sem Sinterização E Respectiva Tinta( Patent in Method for perpetrating electrochromic inks) Patented by Y-Dreams –Portugal 2009, Madan Parque – Sul, Quinta da Torre, 2825-149 CAPARICA. Portugal  By Claudia B. da Costa, G.K.Rohan Senadeera, Elvira Maria Correia Fortunato and Ines Domingues da Silva Henriques.  Portugeese  Patent by Y-Dreams – Portugal, PT 104634A (https://www.lens.org/lens/patent/PT_104634_A).

Currently

3 PhD Students

1 Mphil Student

Completed

  1.Mr. C. A. Thotawattage, Ph.D. (PGIS) University of Peradeniya (2018)

2.Ms.  J.M.K.W. Kumari, M.Phill, (PGIS) University of Peradeniya (2017,

3. Ms. H.M.N. Sarangika Ph.D , University of Peradeniya, (2016)

4.. Ms. W.N.S. Rupasinghe, M.Phill, PGIS, University of Peradeniya, (2014)

5. Mr. T.R.C.K. Wijayaratna, M.Phill, OUSL, (2012)

 

  1. Presidential Research awards for years 1999, 2000, 2001, 2002,2003,2004,and 2005, 2007, 2008, 2010,2013,   for publications  (for each year)
  2. National Research Council Research Award 2011,2012
  3. Best Research Paper (2012), Faculty of Natural Sciences, 2013, The Open University of Sri Lanka in 2013
  4. Best Research Paper (2013), Faculty of Natural Sciences, 2014, The Open University of Sri Lanka in 2014
  5. Best Research Paper (2014), Faculty of Natural Sciences, 2015, The Open University of Sri Lanka in 2015
  6.  University Research Award for 2015, The Open University of Sri Lanka   on 17th November, (2016)
  7. University Research Award for 2016, The Open University of Sri Lanka   November, (2017)
  8. National Science Foundation, SUSRED award 2017  (in 2018)

Fellowships

1. Postdoctoral Fellowship (Ciência 2008), Foundation for Science and Technology, Government of Portugal to work at CENIMAT-I3N – Centro de Investigação de Materiais (Lab. Associado I3N), New University of Lisbon, Portugal (2008)

2. Postdoctoral  Fellowship, Japan Society for the Promotion of Science (JSPS), Government of Japan, to work at  Osaka University, Japan (2002-2003),

3. Postdoctoral Research Fellowship ,UNESCO–MOMBUSHO, Government of Japan to work at Tokyo Institute of Technology, Japan, (1997-1998)

4. International  Program in Physical Sciences Fellowships, (IPPS)  Uppsala University, Sweden for Ph.D. Research work at the Technical University of  Denmark. Denmark. (1994-1995)

5. International  Program in Physical Sciences Fellowships, (IPPS)  Uppsala University, Sweden for Ph.D. Research work at the Technical University of  Denmark. Denmark. (1992-1993)

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