Dr. Piyasiri Ekanayake

Senior Assistant Professor


Educational Qualifications: BSc (Perad., Sri Lanka), MSc (Perad., Sri Lanka), PhD (MLU-Halle, Germany)

Research Interests

  • Dye Sensitized Solar Cells (DSSC)
  • Perovskite Solar Cells (PSC)
  • Polymers and Complexed Fluids
  • Solid Polymer Electrolytes


  • SP-1301 Classical Mechanics
  • SP-2303 Quantum Mechanics & Atomic Physics
  • SP-4304 Physics in Medicine and Biology
  • SE-5102 Basic Renewable Energy Conversion
  • CU-0304 Sciences for University Study


  • Ako Rajour Tanyi, Piyasiri Ekanayake, Ai Ling Tan, David James Young, La modified TiO2 photoanode and its effect on DSSC performance: A comparative study of doping and surface treatment on deep and surface charge trapping Materials Chemistry and Physics (2016),In Press, DOI 10.1016/j.matchemphys.2015.12.066

  • Ako Rajour Tanyi, Alwani Imanah Rafieh, Piyasiri Ekanayake, Ai Ling Tan, David James Young, Zhang Zheng, Chellappan Vijila, Gomathy Sandhya Subramanian, R.L.N. Chandrakanthi, Enhanced efficiency of dye-sensitized solar cells based on Mg and Laco-doped TiO2 photoanodes Electrochimica Acta(2015), 178, 240–248

  • Andery Lim, Dk Nur Fhatihah binti Pg Damit, Piyasiri Ekanayake, Tailoring of extraction solvent of Ixora coccinea flower to enhance charge transport properties in dye sensitized solar cells Ionics (2015), 21, 2897–2904

  • Ako Rajour Tanyi, Piyasiri Ekanayake, David James Young, Jonathan Hobley, Chellappan Vijila, Ai Ling Tan, Sergey Gorelik, Gomathy Sandhya Subramanian, Lim Chee Ming, Evaluation of surface energy state distribution and bulk defect concentration in DSSC photoanodes based on Sn, Fe, and Cu doped TiO2 Applied Surface Science (2015), 351, 950-961,DOI 10.1016/j.apsusc.2015.06.015

  • N T R N Kumara, Miloš Petrović, Anna Marie Yong, Chellappan Vijila, Mohammad Iskandar Petra; R.L.N. Chandrakanthi, Chee Ming Lim, Jonathan Hobley, Piyasiri Ekanayake, Efficiency enhancement of Ixora floral dye sensitized solar cell by diminishing the pigments Solar Energy (2015), 117 C, 36-45,DOI: 10.1016/j.solener.2015.04.019

  • Andery Lim, N T R N Kumara, Ai Ling Tan, 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 (2015) 596–602 DOI.org/10.1016/j.saa.2014.11.102

  • Zularif Zolkepli, Andery Lim, Piyasiri Ekanayake, Kushan Tennakoon, Efficiency Enhancement of Cocktail Dye of Ixora coccinea and Tradescantia spathacea in DSSC Journal of Biophysics, Volume 2015 (2015), Article ID 582091, 8 pages DOI.org/10.1155/2015/582091

  • Andery Lim, Piyasiri Ekanayake, Dk Rashidah Pg Abdullah, Linda Biaw Leng Lim, J.M.R. Sarath Bandara Piyasiri Ekanayake, Enhancement of sensitization capacity of dye from Melastoma malabathricum L. in DSSC by organic acid treatment International Journal of Renewable Energy Research (2015), Vol.5, No.4 In Press