Prof.P.Ravirajan

Prof.P.Ravirajan

   

Professor in Physics

University of Jaffna
Jaffna JA 40 000
Sri Lanka

Phone : +942225924
Fax      : +942222685
Email   :  p_ravirajan@jfn.ac.lk, 
                pravirajan@gmail.com

BSc Hons (Physics)(Jaffna), MSc (Pera),
DIC, PhD(London)
   

 

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University Education

PhD, DIC, Imperial College, University of London, 2001-2004

MSc in Material Physics, University of Peradeniya, 1997-1999

BSc Special degree in Physics, University of Jaffna, 1991-1995  

 

Google Scholar Website (https://scholar.google.com/citations?user=l1wPmm8AAAAJ&hl=en) 

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Head, Department of Physics University of Jaffna, October 2010 – September 2016

Director, Staff Development Centre, University of Jaffna, November 2011 – To date

Member, Standing Committee on Staff Development, UGC, June 2011 – To date

Council Member, University of Jaffna, November 2015 – To date

Alumni Officer, University of Jaffna, June 2007 -June 2009

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Main Area : Physics of Nanomaterials & Nanodevices

Researcher ID : B-5847-2008 (http://www.researcherid.com/rid/B-5847-2008)

 

Title of Thesis : Fabrication and characterisation of hybrid nanocrstalline metal oxides / polymer solar cells

Supervisors     : Prof.Jenny Nelson & Prof.Donal D.C. Bradley, Imperial College, University of London

 

Title of the Project

Investigator(s)

Period

From      To

Funding Agency

Amount (Rs)

01

Optoelectronic properties of hybrid
Metal oxide / Polymer Nano–composites
(since May 2005)

Dr.L.Jeyanathan (PI)
Dr.S.Sivaraya
Dr.P.Ravirajan

2000 – 2004
2000 – 2005
2005 – 2008 

NRC

11,000,000  

02

Low cost solar cells based on Nanocrystalline
titanium dioxide and vegetable dyes

Prof.P.Ravirajan (PI)

2006 – 2009

IFS

1,100,000  

03

Fabrication and Characterization of Hybrid
organic/ metal oxides Nanostructured
PV devices

Prof.P.Ravirajan (PI)

2006 – 2009

NRC

8,350,000  

04

Characterization of Nanostructured
polymer / Fullerene solar cells  

Prof.P.Ravirajan (PI)

2007 – 2011

NSF

1,900,000  

05

Improving the performance of Hybrid TiO2 /
 Polymer solar cell using interface modifiers

Prof.P.Ravirajan (PI)

2011 – 2015

NRC

8,000,000  

06

Gel-Polymer Electrolytes for Sodium Batteries

Prof.P.Ravirajan(PI)
Dr.K.Vignarooban
Mr.S.Senthuran

 2015-2018

 NRC 5,000,000 


NRC – National Research Council, Sri Lanka ,  NSF – National Science Foundation, Sri Lanka, 

IFS – International Foundation for Science (Sweeden)

{slide= Research Publications(Journal articles/conference proceedings)|closed|scroll}

  • Positive Temperature Coefficient Resistance (PTCR) effect of Barium Titanate based Ceramics, B.S.B. Karunaratne and P. Ravirajan, Ceylon Journal of Science: Phy. Sciences, 6(1), 47-56 (1999). 
  • Hybrid nanocrystalline TiO2 solar cells with a fluorene-thiophene copolymer as a sensitizer and hole conductor, P. Ravirajan, S. A. Haque, J. R. Durrant, D. Poplavskyy, D. D. C. Bradley, and J. Nelson, Journal of Applied Physics95 (2004) 1473 – 1480. 
  • Nanoporous TiO2 solar cells sensitized with a fluorene-thiophene copolymer, P. Ravirajan, S. A. Haque, D. Poplavskyy, J. R. Durrant, D. D. C. Bradley, and J. Nelson, Thin Solid Film451-452 (2004) 624 – 629.
  • Factors limiting the efficiency of molecular photovoltaic devices, J. Nelson, J. Kirkpatrick, and P. Ravirajan, Physical Review B69 (2004) 035337.
  • Effect of morphology on electron drift mobility in porous TiO2, B. O. Aduda, P. Ravirajan, K. L. Choy, and J. Nelson, International Journal of Photoenergy6 (2004) 141-147.
  • The effect of polymer optoelectronic properties on the performance of multilayer hybrid polymer/TiO2 solar cell,P. Ravirajan, S. A. Haque, J. R. Durrant, D. D. C. Bradley and J. Nelson, Advanced Functional Materials, 15 (2005) 609 – 618.
  • Efficient Charge Collection in Hybrid Polymer / TiO2 Solar Cell using PEDOT:PSS as a Hole Collector,P. Ravirajan, S. A. Haque, J. R. Durrant, S. J. P. Smith, J. M. Kroon, D. D. C. Bradley and J. Nelson, Applied Physics Letter86, (2005) 143101.
  • Hybrid polymer / zinc oxide photovoltaic devices using vertically oriented ZnOnanorods and an ambiphilic molecular interface layer, P. Ravirajan, A. M. Peiró, M. K. Nazeeruddin, M. Graetzel, D. D. C. Bradley, J. R. Durrant and J. Nelson, Journal of Physical Chemistry B110 (2006), 7635-7639.
  • Hybrid polymer/metal oxide solar cells based on ZnO columnar structures, A. M. Peiró, P. Ravirajan, K. Govender, D. Smyth-Boyle, P. O’Brien, D.D.C.Bradley, J. Nelson J. R. Durrant, J. Material Chemistry 16 (2006) 2088-2096.
  • Hybrid polymer-metal oxide thin films for photovoltaic applications, Bouclé, J., Ravirajan, P., Nelson, J, Journal of Materials Chemistry 17 (2007), pp. 3141-3153.
  • Influence of polymer ionization potential on the open-circuit voltage of hybrid polymer/TiO2 solar cells, T. Ishwara, P.Ravirajan, at el., Appl. Phys. Lett. 92 (5), (2008) 053308.
  • Effect of temperature and light intensities on the performance of Polymer/Fullerene solar cells Titanium Dioxide Nanolayers, S.Sarathchandran, K.Haridas, Y. Kim, P.Ravirajan, J. Nanoelectronics and Optoelectronics 5 (2010) 243.
  • Solid state solar cell made from nanocrystalline TiO2 with a fluorene-thiophene copolymer as a hole-conductor, P. Ravirajan, S. A. Haque, J. R. Durrant, D. D. C. Bradley, and J. Nelson, Proc. of SPIE -International Society for Optical Engineering 5215, 226 (2004). (ISBN: 0-8194-5088-X)
  • Photovoltaic devices based on nanocrystalline TiO2 and a fluorene-thiophene copolymer, P. Ravirajan, S. A. Haque, D. Poplavskyy, J. R. Durrant, D. D. C. Bradley, and J. Nelson, Proc. 3rd World Conference on Photovoltaic Energy Conversion (WCPEC3), A-C, 2722-2725, 2003. (ISBN: 4-9901-8162-X)
  • Efficient hybrid polymer / TiO2 solar cells using a multilayer structure, P. Ravirajan, S. A. Haque, J. R. Durrant, D. D.C.Bradley, and J. Nelson, Proc. of SPIE – International Society for Optical Engineering 5520, 232 (2004).  (ISBN: 0-8194-5458-3)
  • The effect of zinc oxide nanostructure on the performance of hybrid polymer/zinc oxide solar cells, A.M Peiró, P. Ravirajan, K. Govender, D.S. Boyle, P.O’Brien, D.D.C. Bradley, J. Nelson and J.R. Durrant, Proc. of SPIE -International Society for Optical Engineering 5938, 5938-19 (2005).
  • Novel Cyclometallated Ruthenium dye sensitizer for nanocrystalline TiO2 based Solar cells, M.Senthilnanthanan, S.Sarathchandran, John.M.Brown, S.Sivaraya and P.Ravirajan, Proceedings of the International conference on “Advances in Continuum mechanics, Nanoscience and Nanotechnology”, University of Peradeniya, Sri Lanka, September 26-27, 2008, 240-245. 
  • Visible Light Responsive Nanocrystalline Titanium Dioxide for Dye Sensitized Solar Cells, B. Kajitha, S. Sarathchandran, M. Senthilnanthanan and P. Ravirajan, Proceeding of the International Conference on Solar energy Materials, Solar cells and Solar energy Applications (SOLAR ASIA – 2011), 253 (2011).
  • Enhancing the Performance of Hybrid TiO2/Polymer Multilayer Solar Cells by Modifying the TiO2/Polymer Interface By Single Wall Carbon Nanotube,K. Balashangar, T. Jaseetharan, S. Sarathchandran and P. Ravirajan, SOLAR ASIA – 2011, Proceeding of International Conference on Solar energy Materials, Solar cells and Solar energy Applications (SOLAR ASIA – 2011), 258 (2011).
  • Hybrid TiO2/polymer solar cells made with functionalized single wall carbon nanotube (SWNT), PA Amalraj, K Balashangar, P Ravirajan, National Nanotech. Conference, Colombo, 45-47, 2012.
  • Effect of Alumina coating in Hybrid nanocrystalline titanium dioxide/polymer solar cell, S. Loheeswaran, K. Balashangar, P. Ravirajan, National Nanotechnology Conference, Colombo, 36-39, 2012.
  • Role of Poly(Ethylenedioxythiophene)-Poly(Styrene Sulphonate) on the Performance of Nanocrystalline Titanium Dioxide-Poly(3-Hexylthiophene) Polymer Solar Cells, Sarathchandran, S.; Prashanthan, K.; Ravirajan, P., Journal of Nanoelectronics and Optoelectronics 6 (3), 2011 , 272-276.
  • Post-Processing Treatments in Hybrid Polymer/Titanium Dioxide Multilayer Solar Cells, P Ravirajan, P Atienzar, J Nelson, Journal of Nanoelectronics and Optoelectronics 7 (5), 2012, 498-502. 
  • Controlling Recombination Kinetics of Hybrid Nanocrystalline Titanium Dioxide/Polymer Solar Cells by Inserting an Alumina Layer at the Interface, S. Loheeswaran, K. Balashangar, J. Jevirshan, and P. Ravirajan, Journal of Nanoelectronics and Optoelectronics, 8 (2013), 484-88. 
  • Extended Spectral Response of Titanium dioxide/Poly (3-hexylthiophene) Solar Cells due to Cadmium Sulfide Interface Layer, M. Thanihaichelvan, K. Sockiah, K. Balashangar and P. Ravirajan, Journal of Materials Science: Materials in Electronics, 26 (6) 2015, 3558-3563.
  • Effect of Surface roughness of the substrate on the Performance of Polycrystalline CdS/CdTe Solar Cells, K. Balashangar, M. Thanihaichelvan, P. Ravirajan, G. D. K. Mahanama, M. A. K. L. Dissanayake, R. Dhere, E. Colegrove, S. Sivananthan,  Journal of Nanoelectronics and Optoelectronics, 10 (4) 2015, 449-454.   

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  • Conjugated fluorene copolymers as hole transport materials in polymer-metal oxide photovoltaic devices, J. Nelson, M. Biswas, D. Poplavskyy, P.Ravirajan, D. D.C.Bradley, J. R. Durrant and S. A. Haque, 201st Meeting of The Electrochemical Society, Philadelphia, Pennsylvania, USA, May 12-17, 2002.
  • Characterisation of solar cells made from nanocrystalline TiO2 and a fluorene-thiophene copolymer, P. Ravirajan, S. A.Haque, D. Poplavskyy, J. R. Durrant, D. D. C. Bradley and J. Nelson, The 2002 Annual Conference of the British Association for Crystal Growth, The University of Liverpool, Liverpool, UK, 8 – 10 September 2002.
  • Characterisation of thin film nanocrystalline TiO2 solar cells with fluorene-thiophene copolymer as a hole conductor, P. Ravirajan, S. A. Haque, D. Poplavskyy, J. R. Durrant, D. D.C.Bradley, and J. Nelson, Bi-annual conference of the Solar Energy Society, Loughborough University, Loughborough, UK April 3-4, 2003.
  • Photovoltaic Device based on nanocrystalline TiO2 and a fluorene-thiophene copolymer, P. Ravirajan, S. A. Haque, D. Poplavskyy, J. R. Durrant, D. D.C.Bradley, and J. Nelson, Discussion Meeting on Functional Mechanisms in Organic and Dye sensitised Solar cells, Imperial College London, UK, July 9-10, 2003.
  • Polymer-fullerne blend and polymer-TiO2 hybrid solar cells, P.Ravirajan, S. A. Choulis, S. A. Haque, J. Nelson, J. R. Durrant and D. D. C.Bradley, Science Bazaar on Organic and Dye Sensitized solar cells, Linz, Austria, September 18-19, 2003.
  • Effect of Morphology on Electron Drift Mobility in Porous TiO2, B.O. Aduda, P.Ravirajan, K.W. Choy, and J. Nelson, The 7th International Conference on Solar Energy and Applied Photochemistry [SOLAR ’03] Luxor, Egypt, 23-28 February 2003.
  • New hole-conductors for solid-state dye sensitised nanocrystalline solar cells, S. A. Haque, T. Park, C. Xu, R. Punniamoorthy, J. Nelson, S. Koops, N. Schultes, L. Ottley, R. J. Potter, A. B. Holmes and J. R. Durrant. MRS Spring Meeting, San Francisco, USA, April 21- 25, 2003
  • Photovoltaic devices based on nanocrystalline TiO2 and a fluorene-thiophene copolymer P. Ravirajan, S. A. Haque, D. Poplavskyy, E. Palomares, James R. Durrant, DonalD.C.Bradley, and Jenny Nelson, 3rd World Conference on Photovoltaic Energy Conversion, Osaka, Japan, May 11-18, 2003.
  • Multi-layer solar cells based on nanoporous TiO2 and a fluorene-thiophene copolymer, P. Ravirajan, J. R. Durrant, D. D.C.Bradley, and J. Nelson, MRS Fall Meeting, Boston, USA, December 1-5, 2003.
  • Efficient hybrid polymer / TiO2 solar cell using PEDOT:PSS as hole collector, P. Ravirajan, S. A. Haque, J. R. Durrant, D. D.C.Bradley, and J. Nelson, International conference on Physics, Chemistry and Engineering of Solar cell (SCELL 2004), Badajoz, Spain, May 13-15th, 2004.
  • Improvement of charge collection in hybrid polymer / TiO2 solar cell using PEDOT:PSS as hole collector, P. Ravirajan, S. A. Haque, J. R. Durrant, D. D.C.Bradley, and J. Nelson, 15th  International Conference on Photochemical Conversion and Storage of Solar Energy (IPS-15),  Paris, France, July 4-9, 2004.
  • Metal oxide / polymer nanocomposite films for light-driven deoxygenation and solar cells, A. M. Peiró, C. Colombo, P. Ravirajan, L. Xiao, G. Doyle , A. Mills, J. Nelson, J. R. Durrant, 15th International Conference on Photochemical Conversion and Storage of Solar Energy (IPS-15),  Paris, France, July 4-9, 2004.
  • S.Kukan and P. Ravirajan, 14th Annual Sessions of Jaffna Science Association, Jaffna, 26-28, April 2006 (14) 23. (ISSN 1800-1289)
  • V. Manivarman and P. Ravirajan, 14th Annual Sessions of Jaffna Science Association, Jaffna, 26-28, April 2006 (14) 5. (ISSN 1800-1289)
  • G. Gnanapiragasam, A. Thevakaran, S. Sivaraya and P. Ravirajan, 14th Annual Sessions of Jaffna Science Association, Jaffna, 26-28, April 2006 (14) 6. (ISSN 1800-1289)
  • P. Ravirajanand J. Nelson, 14th Annual Sessions of Jaffna Science Association, Jaffna, 26-28, April 2006 (14) 8. (ISSN 1800-1289)
  • K.Harithas, S.Sivaraya and P. Ravirajan 14th Annual Sessions of Jaffna Science Association, Jaffna, 26-28, April 2006 (14) 24. (ISSN 1800-1289).
  • Utilisation of Plant Pigments in Dye-Sensitized Nanoporous TiO2 Solar Cells, T. Jaseetharan, S.Sarathchandran, K.Jeyakanthan, M.Senthilnanthanan, S.Sivaraya and P.Ravirajan, National Conference on Advanced Materials For Emerging Technologies (NCAMET 2007), Peradeniya, 21 – 22 July 2007.
  • An investigation of electrical properties of Y-doped BaTiO3 ceramics with different: Mn additions, B.S.B. Karunaratne and P. Ravirajan, Proceedings of the 54th Annual Session of Sri Lankan Association for Advancement of Science, E1-42, 1999.
  • Electrical Characterization of Cr substituted di-Iron Aresenides, N.Sivayogan, L.Ravishnkar,  P.Ravirajan, S.Sivaraya, National Conference on Advanced Materials For Emerging Technologies (NCAMET 2007), Peradeniya, 1 44(July 21-22, 2007).
  • Enhancing the performance of Hybrid TiO2/polymer Solar Cells by replacing nanoporous TiO2 layer with Single Wall carbon Nanotube (SWNT): TiO2 blend, K. Balashangar, S. Sarathchandra and, P. Ravirajan, The First International Conference on Advanced Materials, Science and Engineering (ICAMSE ’12), Colombo.
  • Controlling recombination kinetics of hybrid polymer / metal oxide solar cells, P. Ravirajan, A. M. Peiró, M. Mohr, J. R. Durrant, D.D.C.Bradley and J. Nelson, E-MRS spring meeting, Strasbourg (France), 31st of May- 3rd of June 3, 2005.
  • The effect of zinc oxide microstructure on the performance of hybrid polymer / zinc oxide solar cells, A. M. Peiró, P. Ravirajan, D.D.C. Bradley, J. R. Durrant, and J. Nelson, Organic Photovolatic symposium, SPIE conference, Organic Photovoltaics IV,  31st July – 4 august 2005, San Diego, California USA.
  • Influence of  ZnO Nanoparticle Morphology on the function of Hybrid Polymer / Metal Oxide Solar Cells, A. M. Peiró, P. Ravirajan, K. Govender, D. Smyth-Boyle, P. O’Brien, D.D.C.Bradley, J. Nelson J. R. Durrant, International conference on Functional Materials for the 21st Century, ,University of Edinburgh, UK, 5 – 8 July 2005.
  • The effect of temperature on the performance of Titanium dioxide / fullerene:poly(3-hexylthiophene) hybrid solar cells, K. Haridas, P. Ravirajan, S. Sivaraya, Y. Kim, and J. Nelson, Asian Conference on Solar Energy Materials and Solar Cells (ACSEMSC), Kandy, Sri Lanka (14-16 June 2006.
  • Controlling recombination kinetics of hybrid polymer / metal oxide solar cells using ZnOnanorods or self-assembly monolayer, P. Ravirajan, A.M. Peiro´, D.D.C. Bradley, J.R. Durrant, and J. Nelson, European Conference on Hybrid and Organic Solar Cells, Paris, 28-30 June, 2006.
  • Performance of Titanium dioxide / fullerene:poly(3-hexylthiophene) hybrid solar cells under different temperatures, P. Ravirajan, K. Haridas, S. Sivaraya, Y. Kim, and J. Nelson, European Conference on Hybrid and Organic Solar Cells, Paris, 28-30 June, 2006.
  • Factors controlling open circuit voltage of polymer: titanium dioxide hybrid solar cells, T. Ishwara, P. Ravirajan and J. Nelson, E-MRS 2007 Spring Meeting, Strasbourg, France – May 28th to June 1st, 2007.
  • Photovoltaic devices based on polymer / metal oxide composite films, P.Ravirajan, J. Boucle, and J. Nelson, National Conference on Advanced Materials For Emerging Technologies (NCAMET 2007), Peradeniya, 21 – 22 July 2007 (invited talk).
  • T.Jaseetharan, K.Jeyakanthan, S.Satchithananthan, M. Senthilnanthanan, S.Sarathchandran, S.Sivaraya and P.Ravirajan, Solid state solar cells made from nanocrystalline TiO2 with plant pigments as sensitizers, 15th Annual Sessions of Jaffna Science Association, Jaffna, 7-9, May 2008 (15) 53. (ISSN 1800-1289).
  • Hybrid Organic / Inorganic Solar cells: Interface Modification studies, T.Ishwara, P.Atitenzar, P.Ravirajan, J.R.Durrant and Jenny Nelson, International conference on “Advances in continuum Mechanics, Materials Sciences, Nanosciences and Technology, University of Peradeniya, September 26-27, 2008.
  • Post processing treatments of Poly(3-hexylthiophene): Nanostructured Titanium dioxide films for applications to hybrid Solar cells: P.Ravirajan, T.Ishwara, P.Atitenzar, J.R.Durrant and Jenny Nelson, International conference on “Advances in continuum Mechanics, Materials Sciences, Nanosciences and Technology, University of Peradeniya, September 26-27, 2008.
  • Efficient Multilayer polymer/TiO2 solar cells, P.Ravirajan, T.Ishwara, P.Atitenzar, J.R.Durrant and Jenny Nelson, SID Organic Electronics, Imperial College, September 16-17, 2008.
  • Utilisation of Plant Pigments in Dye-Sensitized Nanoporous TiO2 Solar Cells, T. Jaseetharan, S.Sarathchandran, K.Jeyakanthan, M.Senthilnanthanan, S.Sivaraya and P.Ravirajan, 17th International Conference on Photochemical Conversion and Storage of Solar Energy, Sydney, Australia 27 July – 1 August 2008.
  • Origin of open-circuit voltage of hybrid metal oxide / polymer solar cells, P. RavirajanThiliniIshwara, DonalBradely and Jenny Nelson, IUMRS-ICEM 2008, International Conference on Electronic Materials 2008, Sydney, Australia – 28 July to 1 August 2008.
  • Effect of temperature and illumination intensity on the performance of Titanium dioxide/Fullerene: Polymer solar cells, S.Sarathchandran, K.Harithas, Y.Kim&P.Ravirajan, International conference on Renewable energy source, Kyungpook National University, South Korea, May 14, 2010.
  • K. Balashangar, S. Sarathchandran and P. Ravirajan, Enhancing the performance of Hybrid TiO2/polymer Solar Cells by replacing nanoporous TiO2 layer with Single Wall carbon Nanotube (SWNT): TiO2 blend, International conference on New & Renewable energy 2011, Kyungpook National University, South Korea, April 8, 2011.
  • P. Ravirajan, Novel Device Structure for TiO2-Polymer Solar Cells using Single Wall Carbon Nanotube (SWNT)Workshop on New Materials for Renewable Energy, 17 – 21 October 2011,  ICTP, Trieste, Italy.
  • Improving the Performance of Hybrid TiO2/Polymer Solar Cells Using Functionalized Single Wall Carbon Nanotube, P. Ravirajan P. A. Amalraj and K. Balashangar, International Conference on New & Renewable Energy 2012 (ICNRE 2012), KNU, South Korea.
  • Improving the Performance of Titanium Dioxide/Polymer Solar Cell by Introducing Monolayers at the Interface, S.Loheeswaran, P.A.Amalraj, K.Balashangar and P.Ravirajan, Proceedings of the Abstracts of Jaffna University International Research Conference (JUICE -2012), 187, University of Jaffna.
  • Controlling recombination kinetics of hybrid nanocrystalline titanium dioxide / polymer solar cell by inserting an alumina layer at the interface, S. Loheeswaran, K. Balashangar, J. Jevirshan and P. Ravirajan, International Conference on New & Renewable Energy 2013 (ICNRE 2013), KNU, South Korea.
  • Improving the Photovoltaic properties of hybrid Polymer/ Titanium Dioxide Solar cells by self- assembled monolayers at the interface, S. Loheeswaran, K. Balashangar, and P. Ravirajan, 2nd International Conference of the Solar energy materials, Solar cells and Solar energy applications (Solar Asia 2013), University of Malaya, Kuala Lumpur, Malaysia, August 22-24, 2013.
  • ‘Effect of Surface Roughness of the substrates on the Performance of Polycrystalline CdS/CdTe Solar cells’, M. Thanihaichelvan, K. Balashangar, P. Ravirajan,  G.D.K. Mahanama, M.A.K.L. Dissanayake, R. Dhere, E. Colegrove, and S. Sivananthan, Proceedings of The 2013 U.S. Workshop on Physics and Chemistry of II-VI Materials, Sep 30 – Oct 03, 2013, Chicagi, IL, USA, 29-34.
  • Optimizing growth process of CdS semiconductor thin films for efficiency enhancement in CdS/CdTe solar cells, K.Paramanathan, M.A.K.L.Dissanayake, G.K.R.Senadeera, C.A. Thotawattage, P.Ravirajan, International conference RISTCON 2014, January 22, 2014. University of Ruhuna, Sri Lanka.
  • Inverted P3HT:PCBM bulk heterojunction Solar Cells with Cadmium Sulfide (CdS) as theHole blocking layer, M. Thanihaichelvan, P. Ravirajan, J. Jeong and Y. Kim, International conference RISTCON 2014, January 22, 2014. University of Ruhuna, Sri Lanka
  • Improved performance of dye sensitized solar cells made with visible light responsive Titanium dioxides, T. Kulatheepan, K. Balashangar, P. Ravirajan and M. Senthilnanthanan, The international Conference on Nanoscience and Nanotechnology (ICNST 2014), August12&13, 2014, Colombo, Sri Lanka
  • Cadmium Sulfide (CdS) Quantum dots (QD) on vertically aligned Zinc Oxide (ZnO) nanorods for Photovoltaic Application, M. Thanihaichelvan and P. Ravirajan, The international Conference on Nanoscience and Nanotechnology (ICNST 2014), August12&13, 2014, Colombo, Sri Lanka
  • Performance enhancement of nanocrystalline TiO2 / P3HT Hybrid solar cell via N719 dye interface modification, S. Loheeswaran, K. Balashangar , P. Ravirajan, HETC Symposium 2014, July 7 & 8, 2014 at Hotel Galadari, Colombo, Sri Lanka.
  • Annealing effect of CdS thin films prepared by chemical bath deposition method, K.Paramanathan, M.A.K.L.Dissanayake, G.K.R.Senadeera ,C.A.Thotawattage , K.Balashankar, P.Ravirajan. International conference on materials science and technology 2014, 13 –17 October 2014, PUSPIPTEK Serpong – Indonesia.
  • Solid State Cadmium Selenide (CdSe) Quantum Dot Sensitized Solar Cells (QDSSCs) with a Hole Transporting Polymer, M. Thanihaichelvan, H.R. Chandan, G.R. Balakrishna, Jenny Nelson, P. Ravirajan, The 6th international conference on new and renewable energy-2015, Deagu, Korea., March 2015.
  • Effect of Interface Modifiers in Hole Mobility in Hybrid Nanoporous TiO2/Polythiophene (P3HT) Solar Cells, K. Prashanthan, T. Thivakarasarma, K. Balashankar and P. Ravirajan, 15th International Conference on NANOTECHNOLOGY, 27 – 30 JULY 2015 | ROME (ITALY)
  • Poly (Hexiletheopane) and Cadmium Sulfide sensitized solar cells based on nanoporous Titanium Dioxide (TiO2) layer, M.Thanihaichelvan, S.Karshini, K.Balasangar, P.Ravirajan*15th International Conference on NANOTECHNOLOGY, 27 – 30 JULY 2015 | ROME (ITALY).
  • K. Prashanthan, T. Thivakarasarma, K. Balashangar, P. Ravirajan, M. Planells, N.Robertson and J. Nelson, Hole-Mobility Improvements In Hybrid Titanium Dioxide/Poly(3-Hexylthiophene) Nanocomposites By Employing Interface Modifiers, 5th International Conference on Functional Materials & Devices 2015 (ICFMD – 2015), 4 – 6 August  2015. Johor Bahru, Malaysia.
  • S. Loheeswaran, K. Balashangar, and P. Ravirajan, Improvingthe Performance of Hybrid Titanium Dioxide (TiO2) / Polymer Solar Cell Using Interface Modifiers, 5th International Conference on Functional Materials & Devices 2015 (ICFMD – 2015), 4 – 6 August  2015. Johor Bahru, Malaysia.
  • Optimising the performance of Poly (3-hexylthiophene) and Titanium Dioxide Solar cells using Cadmium Sulfide Quantum Dots., M.Thanihaichelvan, K.Balashangar and P.Ravirajan, International Photovoltaic Solar Energy Conference -2015 (Solar ASIA-2015), to be held on 30th July – 1st August 2015, Pune, India  

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National Awards

  • Presidential Award for Excellence in Research by the President of the Democratic Socialist Republic of Sri Lanka. Year of Award – 2004, 2005, 2006, 2007, 2008, 2010.
  • CVCD Excellence Award-2006 for the most Outstanding Young Researcher in Physical Sciences for the Year 2006 by the Committee of Vice Chancellors and Directors, Sri Lanka.
  • Young Scientist Award for the Year 2008 by SCOPUS, Elsevier Publisher, The Netherlands and National Science Foundation, Sri Lanka.
Scholarship/Fellowship
  • Commonwealth Fellowship, Imperial College London, January – March, 2014.
  • Royal Society Fellowship (International Incoming Short Visits grant 2008/R1), Royal Society, UK, May – July, 2008.
  • Visiting Academic Fellowship, Imperial College London, May – July, 2006.  
  • General Commonwealth Scholarship, Imperial College London, 2001-2004.
 

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  • The 2002 Annual Conference of the British Association for Crystal Growth, The University of Liverpool, Liverpool, UK, 8 – 10 September 2002.
  • Exploring leadership through experience and practice, London, UK, January 27, 2003.
  • Publicizing Your Ideas, Cardiff, UK, March 15-16, 2003.
  • Bi-annual conference of the Solar Energy Society, Loughborough University, Loughborough, UK April 3-4, 2003.
  • Presentation Skills, Imperial College London, UK, May 20, 2003.
  • Information Retrieval, Imperial College London, UK, June 04, 2003.
  • Spring meeting of European Materials Research Society (E-MRS) in Strasbourg, France on 11th of June, 2003.
  • Technical Presentation – Fishbowl, Imperial College Lon don, UK, June 05, 2003.
  • Science Bazaar on Organic and Dye Sensitized solar cells, Linz, Austria, September 18-19, 2003.
  • MRS Fall Meeting, Boston, USA, December 1-5, 2003.
  • Department of Materials Science, University of Oxford, UK on 26th of March 2004. (Invited talk)
  • Molecular Orientation, Low band gap and new hYbrid device concepts for the improvement of flexible organic solar CELLs (MOLYCELL) meeting, EPFL, Lausanne, Switzerland on 18th of May 2004.
  • MOLYCELL meeting, IMEC Leuven, Belgium on 13 & 14 of December 2004.
  • Obtaining and Managing External Research Funding, London, UK on February 10, 2004.
  • Accessing Information in Developing Countries, Oxford, UK on 27th of March 2004.
  • International conference on Physics, Chemistry and Engineering of Solar cell (SCELL 2004), Badajoz, Spain, May 13-15th, 2004.
  • 15th International Conference on Photochemical Conversion and Storage of Solar Energy (IPS-15), Paris, France, July 4-9, 2004.
  • E-MRS spring meeting, Strasbourg (France), 31st of May- 3rd of June 3, 2005.
  • International conference on Functional Materials for the 21st Century, University of Edinburgh, UK, 5 – 8 July 2005.
  • Organic Photovolatic symposium, SPIE conference, Organic Photovoltaics IV, 31st July – 4 august 2005, San Diego, California USA.
  • Discussion meeting on Supramolecular nanotechnology for organic electronics, at Royal Society, London on 5-6, June, 2006.
  • Asian Conference on Solar Energy Materials and Solar Cells (ACSEMSC), Kandy, Sri Lanka 14-16 June 2006.
  • European Conference on Hybrid and Organic Solar Cells, Paris, 28-30 June, 2006.
  • E-MRS 2007 Spring Meeting, Strasbourg, France – May 28th to June 1st, 2007.
  • SID Organic Electronics, Imperial College, September 16-17, 2008.
  • 17th International Conference on Photochemical Conversion and Storage of Solar Energy, Sydney, Australia 27 July – 1 August 2008.
  • International Conference on Electronic Materials 2008, Sydney, Australia – 28 July to 1 August 2008
  • International conference on “Advances in continuum Mechanics, Materials Sciences, Nanosciences and Technology, University of Peradeniya, September 26-27, 2008.
  • ICTP’s Regional School on Physics at Nanoscale, December 14-25, 2009, Hanoi – Viet Nam
  • IFS-OPCW Workshop “Chemistry in Nature – Natural resources: chemical, biological and environmental aspects”, Chiang Mai, Thailand December 7-10, 2009
  • ICTP Winter College on Optics and Energy, February 8-19, 2010, Trieste – Italy.
  • International Conference on Solar energy Materials, Solar cells and Solar energy Applications, Kandy, Sri Lanka 28-30 July 2011
  • Strategies for Improving the Performance of Hybrid Titanium Dioxides/polymer Solar Cells, The 4th International Conference New & Renewable Energy 2013, Daegu, March 29, 2013.(http://icnre.org/) (Invited talk)
  • Progress of cost efficient Nanostructured Solar Cells, International Conference on “Energy, Water and Environmental Science & Technology (ICEWEST)−2015, Presidency College, Chennai, February 05, 2015. (Invited talk)
  • Nanostructured Solar cells,  5th International Conference on Functional Materials & Devices 2015 (ICFMD – 2015), 4 – 6 August  2015. Johor Bahru, Malaysia. (Invited talk)

{/slides}

 

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