DR. (MRS) IRESHA R.M. KOTTEGODA

Principal Research Scientist
Materials Technology Section

Qualifications

PhD   - Solid State Physics (University of Colombo, 2001)

MPhil - Photochemistry ( University of Sri Jayawardanapura, 1996)

Diploma-Chemical Engineering (Tokyo Institute of Technology, Japan, 2002)

BSc First Class(Hons) - Physics, Chemistry, Mathematics (University of Colombo 1992)

Postdoc -Energy storage devices/Instrumentation- USA, Australia, Japan, Israel.

Contacts

Tel:    94 011 2379849    Email:      This email address is being protected from spambots. You need JavaScript enabled to view it.

Research Experience

25 years research experience in application of advanced materials, nanocoatings and nanocomposites  in photovoltaic cells Li-ion batteries and water purification technologies. Over 2000 citations in reputed SCI journal, H-index 22

Interest Areas       

Materials Science and Engineering: Photocatalytic water purification, Photovoltaic cells, Li-ion rechargeable batteries from Graphene and graphite

Publications

 

 

 

Li-ION BATTERIES and Graphene (SCI Publications)

  • Iresha R. M. Kottegoda, X. Gao, L.C.D. Nayanajith, C.H. Manorathne, J-Z. Wang and H-K. Liu, Yossi Gosef 2015. Comparison of Few-layer Graphene Prepared from Natural Graphite through Fast Synthesis Approach. J. Material Science & Technol. 31: 907–912
  • Iresha R.M. Kottegoda, N. H. Idris, L. Lu, J.-Z. Wang and H.-K. Liu 2011. Synthesis and Characterization of Graphene-Nickel Oxide Nanostructures for Fast Charge-Discharge Application. Electrochimca Acta 56 : 5815–5822.
  • Iresha R.M. Kottegoda, Zhumabay Bakenov, Hiromasa Ikuta, Yoshiharu Uchimoto, and Masataka Wakihara 2005. Electrochemical Performance of Lithium Polymer Battery Based on PC/ polymer Borate Ester Plasticizers ECS. Solid-State Lett. 8(1):A30-33
  • Iresha R.M. Kottegoda, Y. Kadoma, H. Ikuta, Y. Uchimoto, and M. Wakihara 2005. High rate capable lithium-ion battery based on surface-modified natural graphite anode and substituted spinel cathode for hybrid electric vehicles. J. Electrochem.Soc. 152 (8): A1595-99.
  • Iresha R.M. Kottegoda, Z. Bakenov and M. Wakihara 2005. Stability of Lithium Polymer Battery Based on Substituted spinel cathode and PEG-Borate Ester/PC based Plasticizers. J. Electrochem. Soc. 152 (8): A1533-8.
  • Shota Kobayashi, Iresha R.M. Kottegoda, Y. Uchimoto, and M. Wakihara 2004. XANES and XSAFs analysis of nano-sized manganese dioxide as a cathode material for Li-ion batteries. J. Mater. Chem. 14: 1843-8.
  • I.R.M. Kottegoda, Y.oshihiro Kadoma, H. Ikuta, Y. Uchimoto, and Masataka Wakihara 2002. Enhancement of Rate Capability in Graphite Anode by Surface Modification with Zirconia. Electrochem. Solid-State Lett. 5(12):1.

PHOTOVOLTAIC CELLS (SCI Publications)

  • G.R.R.A. Kumara, K. Tennakone, I.R.M. Kottegoda, P.K.M. Bandaranayake, A. Kono, M. Okuya, S. Kaneko, K. Murakami 2003. Dye sensitized photo electrochemical cells made from nanocrystalline tin (iv) oxide composite films. J. Electron. Mater. 18: 312.
  • K. Tennakone, V.P.S. Perera, I.R.M. Kottegoda, L.A.A.De Silva, G.R.R.A.Kumara 2000. Dye-sensitized solid-state photovoltaic cells: Suppression of electron-hole recombination by deposition of the dye on a thin insulating film in contact with a semiconductor. J. Electron. Matter. A. Konno 30 (8): 992-996.
  • G.R.R.A. Kumara, A. Konno, I.R.M. Kottegoda, LA.A.De.Silva, K. Tennakone 2001. A dye-sensitized solid state photovoltaic cell made from a nanocrystalline film of TiO2 coated with Al2O3. Semicond. Sci. Technol. 30: 992.
  • K.Tennakone, G.K.R.Senadeera, D.B.R.A.De Silva, I.R.M. Kottegoda 2000. Highly stable dye sensitized solid state solar cell with the semiconductor 4CuBr.3S(C4H9)2 as the hole collector. App. Phys .lett. 77(15): 2367.
  • K. Tennakone, G.R.R.A. Kumara, I.R.M. Kottegoda, V.P.S. Perera 1999. An efficient dye-sensitized solar cell made from oxides of tin and zinc, Chem. Commun. 15.
  • K. Tennakone, V.P.S.Perera, I.R.M. Kottegoda and G.R.R.A. Kumara 1999. Dye-sensitized solid-state photovoltaic cells based on composite zinc oxide/tin(IV) oxide films. J. Phys. D: Appl. Phys. 32 (4): 374.
  • K. Tennakone, I.R.M. Kottegoda, L.A.A.De Silva and V.P.S. Perera 1999. The possibility of ballistic electron transport in dye-sensitized semiconductor nanocrystalline particle aggregates. Semicond.   Sci. Technol. 14: 1.
  • K. Tennakone, G.K.R. Senadeera, V.P.S. Perera, I.R.M. Kottegoda, and L.A.A.De Silva 1999. Dye-sensitized photoelectrochemical cells based on porous SnO2//ZnO composite and TiO2 films with a polymer electrolyte, Chem. Mater. 11: 9.
  • K. Tennakone, G.R.R.A. Kumara, I.R.M. Kottegoda, V.P.S. Perera, and G.M.L.P. Aponsu 1998.   Nano-porous n-TiO2/selenium/p-CuCNS photovoltaic cell, Physics D: Applied Physics. 31: 2326.
  • K. Tennakone, G.R.R.A. Kumara, I.R.M. Kottegoda, V.P.S. Perera, and P.S.R.S. Weerasundara 1998. Sensitization of nano-porous films of TiO2 with santalin (red sandal Wood pigment) and construction of dye-sensitized solid-state photovoltaic cells, J. Photochem. & Photobiol. A: Chem 117: 137.
  • K. Tennakone, G.R.R.A. Kumara, K.G.U. Wijayantha, I.R.M. Kottegoda, V.P.S. Perera and G.M.L.P. Aponsu 1998. Nano-porous solid-state photovoltaic cell sensitized with tannin. Semiconduct. Sci. Technol. 12: 1-5 .
  • K. Tennakone, G.R.R.A. Kumara, I.R.M. Kottegoda, K.G.U. Wijayantha, and V.P.S. Perera 1998. Solid state photovoltaic cell sensitized with a ruthenium bipyridyl complex. Physics D: Applied Physics, 31(12): 1492.
  • K. Tennakone, G.R.R.A. Kumara, I.R.M. Kottegoda 2003. The photostability of dye-sensitized solid-state photovoltaic cells: factors determining the stability of the pigment in the cell, nano-porous n-TiO2/cyanidin/p-CuI, Semiconduct. Sci. Technol. 12: 128-132.
  • K. Tennakone, G.R.R.A. Kumara, I.R.M. Kottegoda, V.P.S. Perera, G.M.L.P. Aponsu and K.G.U. Wijayantha 1997. Depostion of thin conducting films of CuI on glass.     Solar Energy Materials and Solar Cells, 55: 283.
  • K. Tennakone, G.R.R.A. Kumara, K.G.U. Wijayantha, I.R.M. Kottegoda, V.P.S. Perera and G.M.L.P. Aponsu 1996. A nano-porous solid-state photovoltaic cell sensitized with copper chlorophyllin. J. Photochem. Photobiol. 108: 175-177.

WATER PURIFICAION   (SCI Publications)

  • P. Kumarathilaka, V. Jayaweera, Hasintha Wijesekara, I. R. M. Kottegoda, S. R. D. Rosa, and M. Vithanage 2016. Insights into starch coated nanozero valent iron-graphene composite for Cr(VI) removal from aqueous medium, Journal of Nanomaterials 2016:1-10.
  • M. D. Y. Milani, D. S. Samarawickrama, G. P. C. A. Dharmasiri & I. R. M. Kottegoda 2016. Study the structure, morphology, and thermal behavior of banana fiber and its charcoal derivative from selected banana varieties, Journal of natural fibers, 13 ( 3): 332–342
  • I.R.M. Kottegoda, H.C.D.P. Colomboge, K.S.P. Karunadasa, D.S. Samarawickrama, C.H. Manorathne 2013. An efficient Reactor for Purification of Domestic Water Using Solar Energy, International Journal of Energy Engineering, 3 (3): 93-98
  • G.R.R.A. Kumara, F.M.S. Sultanbawa, V.P.S. Perera, I.R.M. Kottegoda, K. Tennakone 1998. Continuous flow photochemical reactor for solar decontamination of water using immobilized TiO2, Solar Energy Materials and Solar Cells 58: 167.
  • K. Tennakone, C.T.K. Thilakaratna, I.R.M. Kottegoda, 1996. Photomineralization of carbofuran by TiO2 supported catalysts. Water Research (IWAQ): 31: 1909 .
  • K. Tennakone, C.T.K. Thaminimulla, I.R.M. Kottegoda 1995. Photocatalytic degradation of organic contaminants in water with TiO2 supported on polythene films. J. Photochem. Photobiol. A: Chem, 87: 177-179.
  • K. Tennakone, I.R.M. Kottegoda, 1995.J. Photochem. Photobiol. A: Chem Photocatalytic Mineralization of Paraquat dissolved in water by TiO2 supported on polythene films. 93: 79-81.

PUBLICATIONS (Local peer reviewed Journals)

  • M.D.R. De Costa, R.C.L. De Silva, L.D.C. Nayanajith, H.C.D.P Colombage,  I.R.M. Kottegoda, S.R.D. Rosa, 2018. Electrical performance and material characterization of reduced graphene oxide (rGO) / titanium dioxide (TiO2) composite for supercapacitors, Sri Lankan Journal of Physics (Accepted)
  • M.D.R. De Costa, R.C.L. De Silva, L.D.C. Nayanajith, H.C.D.P Colombage, I.R.M. Kottegoda, S.R.D. Rosa, 2018, Fabrication and characterization of rGO / PANI / TiO2 composite as an electrode material for supercapacitors, Journal of the SLAAS (Accepted)
  • M.T.V.P. Jayaweera, R.C.L. De Silva, I.R.M. Kottegoda and S.R.D. Rosa 2014.   Synthesis, characterization and ethanol vapor sensing performance of SnO2/Graphene composite films, Sri Lankan Journal of Physics. 15: 1-10

BOOK CHAPTERS

  • I.R.M. Kottegoda, LDC Nayanajith X Gao, J. Wang, J-Z. Wang H-K Liu and Y. Gofer 2016. Synthesis and characteriazation of few-layer graphene from high purity Sri Lankan Vein graphite. Chapter 12, p185, published in Transferring Nanotechnology concept towards business perspectives, published by NAM S&T Center, Edited by S. Shimazu and S. Tursiloadi.

COMMUNICATIONS (International)

  • V. Jayaweera, H. Wijesekara, S. Wijebahu, P. Kumarathilaka, I.R.M. Kottegoda, S.R.D. Rosa, M. Vithanage 2015. Starch coated nano-zero valent iron embedded graphene composite for chromium (VI) removal from aqueous solution, Proceedings of 4th Nanotoday conference, December in Dubai.-Oral Presentation
  • I.R.M. Kottegoda 2013. Status of Nanotechnology in Sri Lanka. “International Workshop on Nanotechnology (IWoN)“, Serpong, Indonesia. Sri Lanka Representative
  • I.R.M. Kottegoda 2011. Status of Nanotechnology based value added products in Sri Lanka. “Expert Group Meeting on Nanotechnology”, held in Bangkok, Thailand. Sri Lanka Representative
  • I.R.M. Kottegoda 2009. Updating present work of UNESCO Fellows. UNESCO Fellows Symposium, Tokyo Institute of Technology, Japan-Poster Presentation
  • I.R.M. Kottegoda, Y. Kadoma, H. Ikuta, Y. Uchimoto, and M. Wakihara 2004. Improved rate properties of Li-ion battery consisting of ZrO2 modified graphite anode and substituted spinel cathode The 206th Electrochemical Society (ECS) Meeting in Honololu, Hawaii, U.S.A-Oral Presentation.
  • I.R.M. Kottegoda, Yoshihiro Kadoma, Hiromasa Ikuta, Yoshiharu Uchimoto, and Masataka Wakihara 2004. Improvement of Cycle Stability and Rate Capability of Li-Ion Batteries. The 205th ECS Meeting in San Antonio, Texas, U.S.A-Poster Presentation.
  • I.R.M. Kottegoda, Yoshihiro Kadoma, Hiromasa Ikuta, Yoshiharu Uchimoto, and Masataka Wakihara 2004. Improvement of Cycle Stability and Rate Capability of Li-Ion Batteries. 12th International Meeting on Lithium Batteries (IMLB), Nara, Japan Poster Presentation.
  • I.R.M. Kottegoda, Zh. Bakenov, H. Ikuta, Y. Uchimoto, M. Wakihara 2003. New Borate Ester Based Polymer Electrolyte for Battery Applications. (Extended Abstract: The 204th ECS Meeting in Florida, U.S.A-Poster Presentation.
  • I.R.M. Kottegoda, Y. Kadoma, H. Ikuta, Y. Uchimoto, and M. Wakihara 2002. Improvement of Cycleability and Rate property in Graphite Anode by Surface Modification with a Thin Layer of Zirconia. Extended Abstract: The 4th Meeting on Materials for Chemical Batteries in Japan-Oral Presentation.
  • I.R.M. Kottegoda, Y. Kadoma, H. Ikuta, Y. Uchimoto, and M. Wakihara 2003. Rate capability of zirconia modified graphite as an anode in Li-ion batteries. International Symposium of Reactivity of Solids (ISRS), Kyoto, Japan .-Oral Presentation

PROCEEDINGS (LOCAL)

  • Synthesis and Characterization of Reduced Graphene Oxide (rGO) / Titanium dioxide (TiO2) Composite Using Solar Simulator, M.D.R. De Costa, R.C.L. De Silva, L.D.C. Nayanajith, H.A.M.I.T. Hettiarachchi, S.R.D. Rosa and I.R.M. Kottegoda 2018 Proceedings of the Technical Sessions, Institute of Physics – Sri Lanka, 34 : 100-106
  • Study of changing flexural strength in Graphite based refractory bricks on firing at oxidative environment, P. S. D. Perera, S. U. Adikarya , J.T.S.T. Jayawardena, I. R. M. Kottegoda and R. C. L. De Silva 2018, Proceedings of the Technical Sessions, Institute of Physics – Sri Lanka, 34: 100-106
  • G. K. Waruni Perera, R.C.L. De Silva, H.C.D.P. Colombage, I.R.M Kottegoda, L.D.C Nayanajith. 2018 Comparison of composites on reduced graphene oxide/ Ferric oxide with Reduced graphene oxide/Ferric oxide/Graphite as Anode materials of sodium ion rechargeable batteries. Proceeding of the Open University International Research Sessions (iOURS 2018) accepted
  • D. U. Abesekara, M D R Costha, R C L De Silva, H C D P Colambage, I R M Kottegoda, D D N B Daya 2018. Synthesis and charactorization of rGO/NiOcomposit for super capasitors. Proceeding of the Open University International Research Sessions (iOURS 2018) accepted
  • R.P.J. Niranjana, P.U.I. Samarawickrama, H.S.I. Fernando, D.D.N.B. Daya, I.R.M. Kottegoda 2017, Preparation of reduced Graphite Oxide (rGO) / Titanium Dioxide Nano Composites for Supercapacitors, Proceedings of the Technical Sessions, 33: 45-52 Institute of Physics – Sri Lanka
  • H.S.I. Feranando, N.D.Bandara, D.D.N.B Daya, M.T.V.P. Jayaweera, I.R.M. Kottegoda 2016 Synthesis and Characterization of rGnO/Ni(OH)2 and rGnO/NiO Nano Composites, Proceedings of the Technical Sessions, 32: 17-22 17 Institute of Physics (IPSL)– Sri Lanka.
  • M.T.V.P. Jayaweera, W.L.N.C. Liyanage, D.D.N.B Daya, S.R.D. Rosa, and I.R.M. Kottegoda 2016. Synthesis and Characterization of polyaniline/SnO2/ Graphene Nano Composites, Proceedings of the Technical Sessions, 32: 17-22 Institute of Physics (IPSL)– Sri Lanka
  • M.T.V.P. Jayaweera, C.P.H. Rajapaksha, D.D.N.B. Daya, S.R.D. Rosa and I.R.M. Kottegoda 2015. Synthesis and characterization of Nano-particulate TiO2-Graphene composite Proceedings of the Technical Sessions, Institute of Physics – Sri Lanka, 31: 77-82.

 

 

Patents

  • I.R.M. Kottegoda, I.P.L. Jayarathna, J.T.S.T. Jayawardane, R.C.W. Arachchi, H.A.M.I.T. Hettiarachchi (Industrial Technology Institute) 2017. Red-clay water filter body composition for removal of arsenic, cadmium and fluoride from water. Sri Lanka Patent - 19158
  • I.R.M. Kottegoda, M.T.V.P. Jayaweera (Industrial Technology Institute) 2017. Preparation of highly oxidized graphite oxide suitable for synthesis of high quality graphene and composites. Sri Lanka Patent- 18301.
  • I.R.M. Kottegoda, J.T.S.T. Jayawardane, H.C.D.P. Colombage, M.T.V.P. Jayaweera (Industrial Technology Institute) 2017. Purification of natural graphite for preparation of high quality graphite oxide as a value addition. Sri Lanka Patent- 18248.
  • I.R.M. Kottegoda, L.D.C. Nayanajith, C.H. Manoratne, M.T.V.P. Jayaweera (Industrial Technology Institute) 2017. Preparation of graphene oxide and few layer graphene as a value addition to local graphite Sri Lanka Patent -18157.
  • I.R.M. Kottegoda, K.S.P. Karunadasa, H.A.M.I.T. Hettiarachchi, H.D.D.P. Gunasekara (Industrial Technology Institute) 2016. Immobilization of TiO2 on a substrate using polymer/binder/adhesive for photo-catalytic air/water purification system, Sri Lanka Patent. 17486
  • I.R.M. Kottegoda, D.S. Samarawickrama, H.C.D.P. Colombage (Industrial Technology Institute) 2016. Low cost continuous flow solar reactor for purification of bacterial/organic contaminated water. Sri Lanka Patent 16731
  • I.R.M. Kottegoda, W.H.A.G. Prematilake, G.P.C.A. Dharmasiri, B.U. Hettiarachchi, R.C.W. Arachchi (Industrial Technology Institute) 2016.   Development of a red-clay based water filter for the remediation of fluoride contaminated water. Sri Lanka Patent, 16753.
  • K.S.P. Karunadasa, H.D.D.P. Gunasekara H.A.M.I.T. Hettiarachchi, W.R.L. Wijesekara, I.R.M. Kottegoda (Industrial Technology Institute) 2016. Fabrication of photo-catalytic continuous flow reactor using plastic pipes for decontamination of organic waste. Sri Lanka Patent-Applied No. 18851
  • I.R.M. Kottegoda, M.T.V.P. Jayaweera, W.N.D. Bandara (Industrial Technology Institute) 2016 Method of preparation of a gas sensor based on reduced graphene oxide/tin oxide nanocomposite, Sri Lanka Patent- Applied No. LK/P/1/18615.
  • I.R.M. Kottegoda, M.T.V.P. Jayaweera, W.L.N.C. Liyanage, C.P.H. Rajapaksha (Industrial Technology Institute) 2015. Preparation of graphene/TiO2, graphene/SnO2 and Graphene/Metal Oxide/Polyaniline nanocomposites for application in energy storage devices. Sri Lanka Patent-Applied No. LK/P/1/18303.
  • I.P.L. Jayarathna, J.T.S.T. Jayawardane, R.C.W. Arachchi, H.A.M.I.T. Hettiarachchi, I.R.M. Kottegoda (Industrial Technology Institute) 2015. Regeneration method of red-clay filter for removal of fluoride from water. Sri Lanka Patent-Applied No. LK/P/1/18302.
  • C.H. Manoratne, J.T.S. Motha, L.D.C. Nayanajith, I.R.M. Kottegoda (Industrial Technology Institute) 2011. Development of Self-cleaning Ceramic Tile, Yoga Milani, Sri Lanka Patent 15302.
  • M. Wakihara and I.R.M. Kottegoda (Tokyo Institute of Technology) 2004 Lithium Ion Batteries, TLO Japan Patent 2004-116673.
  • K. Tennakone, I.R.M. Kottegoda, and G.R.R.A. Kumara (Industrial Technology Institute) 1998. Dye-sensitized nano-porous photo-electrochemical cell made from tin oxide containing zinc oxide, Sri Lanka Patent 11488
  • K. Tennakone, I.R.M. Kottegoda, and G.R.R.A. Kumara (Industrial Technology Institute) 1998 Continuous flow reactor for solar decontamination of water, Sri Lanka Patent 11499.

 

Awards   memberships, Scholarships & Recognition

  • Presidential Awards 2018 for invention of clay filter composition for removal of fluoride ion from water (Sri Lanka Inventors Commission).
  • SUSRED Awards for degree supervision -2018 by National Science Foundation (NSF)
  • Finalist for WAITRO innovation award (World Association of Industrial and Technological Original Research Organization) for invention “Clay filter for removal of F-, As and Cd from water” 2016
  • Life time APEX award of professional excellence in science & technology by Organization of Professional Association (OPA) 2016
  • Received Presidential Research award (by NRC) for publications in several years.
  • Received NRC Merit award for publications in several years by (NRC).
  • Selected to represent Sri Lanka in Nanotechnology conferences held in Indonesia (IWON-2013) and in Thailand (Expert group meeting on nanotechnology-2011)
  • Charted Physicist - Institute of Physics Sri Lanka (IPSL)
  • A member of Electrochemical Society (ECS) USA-2003 (Year obtained)
  • Received highly competitive Fulbright professional award USA 2017
  • Received highly competitive Endeavour Award (postdoc) Australia 2010.
  • Received highly competitive JSPS (Japan Society for the Promotion of Science) (postdoc) 2003-3005.
  • Received highly competitive UNESCO (postdoc) fellowship in Japan (2001-2002)
  • Life time member of institute of Physics Sri Lanka (IPSL)
  • Life time member of Sri lanka Association for Advancement of science (SLAAS)
  • A reviewer in scientific (SCI) journals and local journals in materials science, Li-ion battery research
  • Resource person in area of nanotechnology

Major Projects Undertaken

(as Principal Investigator)

  • Improvement of thermal conductivity of rubber using graphite based nanocomposite as a value addition - Funded by Treasury Grants (TG)
  • Further work on production of high quality graphene based materials from local graphite for high-tech application - Funded by NRC
  • Microwave synthesis of graphene as a value addition to graphite (TG Grants)
  • Synthesis and characterization graphene and composites for electronic materials (NRC Grants)
  • Development of filter/apparatus for decontamination of water Hardness (TG)
  • Photocatalytic technology for treatment of agrochemical waste water (TG)
  • Development of clay water filter for decontamination of F, As, and Cd ions (TG)
  • Purification of graphite to high level such as 99.99% (NSF Grants & TG)
  • Photocatalytic water reactor for purification of domestic water. (TG)
  • Further work on fabrication of glazed cookware with high thermal resistance.

Last Updated on Monday, 10 December 2018 14:44

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