Professor K M D C Jayathilaka

Professor K M D C Jayathilaka BSc (Kelaniya),MPhil (Kelaniya),PhD (Colombo), MIEEE, CPhys, MIP (SL)
Professor

Specialized Field	:	Solid State Physics/Semiconductor Physics
Email Address	:	charithkmd@kln.ac.lk
Telephone No	:	+94 (0)11 2 903 359 (ext: 359)
		+94 (0)34 2 248 156 (Residence)
		+94 (0)77 3 166 106 (Mobile)
Office Location	:	B1 329
Teaching	:	Electronics
		Solid State Physics

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Research Interests

Growth and characterisation of semiconductor thin films using electrodeposition technique for photovoltaic applications

Selected Publications

Bandara, K.N.D., Jayathilaka, K.M.D.C., Dissanayaka, D.P., Jayanetti, J.K.D.S., 2021. PBE+ U-D2 study on facet selective gas adsorption and methane activation over oxygen terminated Cu2O surfaces. Surf. Sci. 623, 157018. Kafi, F.S.B., Jayathilaka, K.M.D.C., Wijesundera, R.P., Siripala, W., 2021. Effect of pre-surface treatments on p-Cu₂O/Au Schottky junctions. J.Natn.Sci.Foundation Sri Lanka 2021 49 (1), 61 – 66. Fernando, W.T.R.S., Jayathilaka, K.M.D.C., Wijesundera, R.P., Siripala, W., 2022. A Comparative Study: Sequential and Single-Step-Electrodeposited CZTS Thin Films. Phys. Status Solidi A 219 (18), 2200231. Jayasekara, L.D.P.S., Gurusinghe, T.N., Wijesooriya, H.E., Seneviratne, J. A., Ranaweera, A.L.A.K., Jayathilaka, K.M.D.C., Wijesundera, L.B.D.R.P., Kalingamudali, S.R.D., 2022. Smart System Using Lora Technology to Connect Rural Areas Underserved by Existing Internet and Telecommunication Technologies. ECS Trans. 107(1), 17731-17744. Thejasiri S.A.A.B, Kafi, F.S.B. Jayathilake, K.M.D.C. Kumara, L.S.R. Wijesundera, R.P. Siripala W. Fabrication of Cu2O homojunction with ZnO buffer layer Proc. 38^th Tech. Sess. Inst. Phys., Sri Lanka, pp. 19-25. Namawardana, D.G.K.K., Wanigasekara, R.M.G., Wanninayake, W.T.M.A.P.K., Jayathilaka, K.M.D.C., Wijesundera, R.P., Siripala, W., Malik, M.I., 2022. Fabrication of inverted organic solar cells on stainless steel substrate with electrodeposited and spin coated ZnO buffer layers. J. Polym. Eng. 42 (3), 233-242. Karunathilaka, M.G.M.T., Ranaweera, A.L.A.K., Jayathilaka, K.M.D.C., Seneviratne, J.A., 2022. Design of novel perfect metamaterial absorber for Radio Frequency energy harnessing. Proceedings of the International Conference on Applied and Pure Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 37. Jayasekara, L.D.P.S., Seneviratne, J.A., Ranaweera, A.L.A.K., Jayathilaka, K.M.D.C., 2021. A simulation-based study on transmitter coil geometries to enhance the efficiency of Wireless Power Transfer (WPT). Proceedings of the 77^th Annual Sessions of Sri Lanka Association for the Advancement of Science, p. 57. Kafi, F.S.B., Jayathilaka, K.M.D.C., Wijesundera, R.P., Siripala, W., 2021. Effect of pre-surface treatments on p-Cu₂O/Au Schottky junctions. J.Natn.Sci.Foundation Sri Lanka 2021 49 (1), 61 – 66. Wanigasekara, G., Namawardana, D.G.K.K., Wanninayake, W.T.M.A.P.K., Jayathilaka, K.M.D.C., Wijesundera, L.B.D.R.P., Siripala, W., 2021. Fabrication of P3HT/PCBM inverted solar cells with ZnO electron transport layer. Sri Lankan Journal of Physics, 22(1), 40-49. Bandara, K.N.D., Jayathilaka, K.M.D.C., Dissanayaka, D.P., Jayanetti, J.K.D.S., 2021. Surface engineering of electrodeposited cuprous oxide (Cu₂O) thin films: Effect on hydrophobicity and LP gas sensing. Surf. Sci. 561, 150020. Kalubowila, K.D.R.N., Jayasingha, J.K.L., Dissanayake, D., Jayathilaka, C., Jayasundara, D., Gao, Y., 2021. Reduction-Induced Synthesis of Reduced Graphene Oxide-Wrapped Cu₂O/Cu Nanoparticles for Photodegradation of Methylene Blue ACS Applied Nano Materials, 4 (3), 2673-2681. Namawardana, D.G.K.K., Wanigasekara, G., Wanninayake, W.T.M.A.P.K., Jayathilaka, K.M.D.C., Wijesundera, L.B.D.R.P., Siripala, W., 2021. Fabrication of P3HT:PCBM Inverted Organic Solar Cells . Proc. 37^th Sess. Inst. Phys., Sri Lanka, pp54-61. Fernando, W.T.R.S., Jayathilaka, K.M.D.C., Wijesundera, R.P., Siripala, W., 2021. Growth of ZnO thin films on Mo substrate for PV applications. Proc. 37^th Sess. Inst. Phys., Sri Lanka, pp62-69. Jayathilaka, C., Kumara, L.S.R., Ohara, K., Song, C., Kohara, S., Sakata, O., Siripala, W., Jayanetti, S., 2020. Enhancement of Solar Cell Performance of Electrodeposited Ti/n-Cu₂O/p-Cu₂O/Au Homojunction Solar Cells by Interface and Surface Modification. Cryst. 10, 609. Lakmini Jayasingha, Charith Jayathilaka, Roshantha Kumara, Koji Ohara, Migelhewa Kaumal, Siyath Gunewardene, Dhammike Dissanayake, and Sumedha Jayanetti , Nanoporous Cu 2 O nanotube/nanorod array electrodes for non-enzymatic glucose sensing with high sensitivity and very low detection limit, Electrochimica Acta 329, 135177,2020. KDRN Kalubowila, KMDC Jayathileka, LSR Kumara, K Ohara, S Kohara, O Sakata, MS Gunewardene, JMDR Jayasundara, DP Dissanayake, JKDS Jayanetti, Effect of bath pH on electronic and morphological properties of electrodeposited Cu 2 O thin film, Journal of the Electro Chemical Society,166(4), D1-D7,2019. FSB Kafi, KMDC Jayathilaka, RP Wijesundera and W Siripala, Dependence of interfacial properties of p-Cu 2 O/electrolyte and p-Cu 2 O/Au junctions on the electrodeposition bath pH of p-Cu 2 O films, Mater. Res. Express 5 086406. JLK Jayasingha, KMDC Jayathilaka, MN Kaumal, MS Gunewardene, DP Dissanayake, JKDS Jayanetti, Copper foam based 1-D nanostructured Cu 2 O for non-enzymatic glucose sensing, Proceedings of the Annual Research Symposium-, University of Colombo, Sri Lanka. pp 260. 2018. JLK Jayasingha, KMDC Jayathilaka, DP Dissanayake, JKDS Jayanetti, ZnO nanorods modified with copper nanoclusters for non-enzymatic glucose sensing applications, Proc. 74th Annual Sess. SLASS,2018. KDRN Kalubowila, JMDR Jayasundara, KMDC Jayathilaka, MS Gunewardene, DP Dissanayake and JKDS Jayanetti, Cu 2 O/rGO nanocomposite for photocatalytic degradation of methylene blue, Annual Research Symposium, University of Colombo, 229, 2018. WTRS Fernando, KMDC Jayathilaka, RP Wijesundara and W Siripala, “Fabrication of CZTS/Cu 2 O solar cell”, International Postgraduate Research Conference, University of Kelaniya, Sri Lanka, 2018. WTRS Fernando, KMDC Jayathileka, RP Wijesundera and W Siripala; Growth of photoactive Cu 2 ZnSnS 4 by single step electrodeposition,” International Research Symposium on pure and Applied Science, University of Kelaniya, Sri Lanka, 2018. FSB Kafi, KMDC Jayathilaka, RP Wijesundera and W Siripala, *Effect of bath pH on interfacial properties of electrodeposited n-Cu₂O films* Phys. Status Solidi B, 1700541. doi:10.1002/pssb.201700541. KND Bandara, KMDC Jayathilaka, MS Gunewardene, DP Dissanayaka, JKDS Jayanetti, *Surface properties of sulphur based surface modified* n-*Cu₂O thin films for* *enhanced liquefied petroleum gas sensing,* J. Phys. D: Appl. Phys. 50 485304 J. Phys. D: Appl. https://doi.org/10.1088/1361-6463/aa9204 JLK Jayasingha, M N Kaumal, KMDC Jayathilaka, M. S. Gunewardene, DP Dissanayake, and JKDS Jayanetti *Surfactant free template assisted electrodeposited n-type nano-cubic Cu₂O thin films for nonenzymatic glucose sensing,* Phys. Status Solidi A 214, No. 8, 1700135 (2017) / DOI 10.1002/pssa.201700135. KND Bandara, KMDC Jayathilaka, MS Gunewardene, DP Dissanayaka, JKDS Jayanetti, *Liquefied petroleum gas sensing performance of electrodeposited cuprous oxide thin films at room temperature,* The RES 333^rd International conferences on Engineering and Natural Science (ICENS) Sydney, Australia, (February 2018). KMDC Jayathilaka, LSR Kumara, CH Song, K Ohara, S Kohara, O Sakata, W Siripala and JKDS Jayanetti, *Efficiency Improved Electrodeposited Ti/Cl-doped n-Cu₂O/p-Cu₂O/Au Homojunction Solar* *Cells, Proc. Inte. Conf. (Solar Asia 2018), Kandy, Sri Lanka, pp. 8-14 (2018). WTRS Fernando, KMDC Jayathilaka, RP Wijesundera and W Siripala Growth of Cu₂ZnSnS₄for Solar Cell Applications,* Proc. Inte. Conf. (Solar Asia 2018), Kandy, Sri Lanka, pp. 47-51(2018). J T Kalani, H W H S Weerasinghe, K N D Bandara, J L K Jayasingha, K M D C Jayathilaka, J K D S Jayanetti, Wettability determined by angle of contact measurements for electrodeposited Cu2O thin films with Sulphur based surface treatments or Chlorine doping, Proc. 73rd Annual Sess. SLASS, (2017 December). F S B Kafi, K M D C Jayathilaka, L B D R P Wijesundera, W P Siripala, *Comparison of interface properties of post-treated p-Cu2O/Au Schottky junctions, Proc. 73rd Annual Sess. SLASS, (2017 December). KMDC Jayathilaka, LSR Kumara, CH Song, S Kohara, O Sakata, W Siripala and JKDS Jayanetti, n-Cu2O/p-CuxS Thin Film Heterostructures for Solar cells, The 64th JSAP Spring Meeting, Pacifico Yokohama, (2017 March). JKDS Jayanetti, JLK Jayasingha, MN Kaumal, KMDC Jayathilaka, MS Gunewardene, DP Dissanayake, Morphological effects of electrodeposited Cu2O thin films on enhancement of glucose sensing, The 78th JSAP Autumn Meeting, Fukuoka International Congress Center, (2017 September). JLK Jayasingha, MN Kaumal, KMDC Jayathilaka, MS Gunewardene, DP Dissanayake, JKDS Jayanetti, Electrochemical modification of nanocubic p-Cu2O electrodes for enhanced nonenzymatic glucose sensing, The 78th JSAP Autumn Meeting, Fukuoka International Congress Center, (2017 September) WTRS Fernando, KMDC Jayathilaka, RP Wijesundera, W Siripala, Optimization of growth parameters of photovoltaic Cu2ZnSnS4, Proceedings of the International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of kelaniya, (2017 ), p 100. AGT De Silva, KMDC Jayathilaka, RP Wijesundera and W Siripala, Photoelectrolysis of water using electrodeposited Cu2O electrodes, Proceedings of the International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of kelaniya, (2017), p 102. FSB Kafi, KMDC Jayathilaka, RP Wijesundera and W Siripala, Fabrication of Cu2O homojunction thin films for photovoltaic applications, Proceedings of the International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of kelaniya, (2017), p 103. WTRS Fernando, KMDC Jayathilaka, RP Wijesundera and W Siripala, Growth of CuZnS thin films for PV applications, Proc. 33rd Tech. Sess. Inst. Phys., Sri Lanka, pp. 12-18 (2017). KMDC Jayathilaka, LSR Kumara, C H Song, S Kohara, O Sakata, W Siripala, and JKDS Jayanetti, n-Cu₂O/p-Cu_xS Thin Film Heterostructures for Solar cells, The 64th JSAP Spring Meeting 2017 March 14-17 Pacipico Yokohama Japan (2017). KND Bandara, KMDC Jayathilaka, MS Gunewardene, DP Dissanayaka, JKDS Jayanetti, Effects of Surface Modification of n-Cu2O/p-CuxS Thin Film Heterostructures for Enhanced Liquefied Petroleum Gas Sensing Properties, OUSL Journal, 10, pp.59-72 (2016). JLK Jayasinghe, KMDC Jayathilaka, MN Kaumal, DP Dissanayake and JKDS Jayanetti, Electrocatalytic activity of nanocubic and microcrystalline Cu2O electrodes for glucose oxidation. In Proceedings of the 72^nd Annual Sessions of Sri Lanka Association for the Advancement of Science, p 62.(2016). JLK Jayasingha, KMDC Jayathilaka, MS Gunewardene, DP Dissanayake and JKDS Jayanetti, Electrodeposited n-type cuprous oxide cubic nanostructures for Liquefied Petroleum gas sensing, Phys. Status Solidi B, 1–8 (2016) / DOI 10.1002/pssb.201600333. KND Bandara, KMDC Jayathilaka, MS Gunewardene, DP Dissanayaka, JKDS Jayanetti, Effects of Surface Modification of n-Cu₂O/p-Cu_xS Thin Film Heterostructures for Enhanced Liquefied Petroleum Gas Sensing Properties,* OUSL Journal, 10, pp.59-72 (2016). FSB Kafi, KMDC Jayathilaka, RP Wijesundera and W Siripala, Fermi-level pinning and effect of deposition bath pH on the flat-band potential of electrodeposited n-Cu₂O in an aqueous electrolyte, Phys. Status Solidi B, 1–5 (2016) / DOI 10.1002/pssb.201600288. FSB Kafi, KMDC Jayathilaka, R.P Wijesundara and W Siripala, Growth of electrodeposited n-Cu₂O thin films with tunable band edge position, International Postgraduate Research Conference (iprc-2016) University of Kelaniya, Sri Lanka 10th – 11th December (2016). FSB Kafi, KMDC Jayathilaka, R.P Wijesundara and W Siripala, Improvement of p-Cu₂O/Au interface by controlling the pH of the electrodeposition bath of Cu₂O, Inernational Research Symposium on pure and Applied Science, (IRSPS-2016) University of Kelaniya, Sri Lanka 1st December 2016. WTRS Fernando, KMDC Jayathilaka, R.P Wijesundara and W Siripala, Growth of CuZnS thin films by sequential electrodeposition and sulphurisation, Inernational Research Symposium on pure and Applied Science, (IRSPS-2016) University of Kelaniya, Sri Lanka 1st December 2016. JLK Jayasingha, KMDC Jayathilaka, MS Gunewardene, DP Dissanayake, JKDS Jayanetti, Nano-Cubic cuprous oxide thin films for LP gas sensing application, Proceedings of the Postgraduate Symposium, University of Colombo (2016). HTN padmini, KMDC Jayathilaka, LSR Kumara, S Kohara, O Sakata, RP Wijesundara and W Siripala, Optimisation of photoactive properties of ZnO by electrodeposition, 9th international research conference, 8th-9th September 2016 KDU Sri Lanka (2016). KMDC Jayathilaka, LSR Kumara, CH Song, S Kohara, O Sakata, V Kapaklis, W Siripala and JKDS Jayanetti, Surface treated electrodeposited ZnO/Cu₂O solar cell. 20th International Vacuum Congress August 21-26, 2016 Busan, Korea. (2016). AGT De Silva, WJM Samaranayaka, KMDC Jayathilaka, Electrolytic Hydrogen production using solar power, iSciTech-2016-SUSL, January 25th-27th 2016, Belihuloya, Sri Lanka (2016). FSB Kafi, KMDC Jayathilaka, RP Wijesundera, W Siripala, Observation of interface modification of electrodeposited p-Cu2O thin films in an aqueous electrolyte, International Postgraduate Research Conference (iprc-2015) University of Kelaniya, Sri Lanka 10th – 11th December (2015). KMDC Jayathilaka, LSR. Kumara, CH Song, S Kohara, O Sakata, V Kapaklis, W Siripala, JKDS Jayanetti, Annealing effects of the untreated and sulfur-treated electrodeposited n-type and p-type cuprous oxide thin films, Phys. Status Solidi B 253, No. 4, 765–769 (2016) / DOI 10.1002/pssb.201552664. KMDC Jayathilaka, V Kapaklis, W Siripala, JKDS Jayanetti, Improved efficiency of electrodeposited p-CuO/n-Cu2O heterojunction solar cell, Applied Physics Express 8, 065503 (2015) http://dx.doi.org/10.7567/APEX.8.065503 KMDC Jayathilaka, V Kapaklis, W Siripala and JKDS Jayanetti; *Sulfur treatment of electrodeposited nanocrystaline cuprous oxide,* 5^thInternational Science Congress 8^th - 9^th December 2015 Tribhuvan University, Kathmandu, Nepal (2015) KMDC Jayathilaka, V Kapaklis, W Siripala and JKDS Jayanetti; *Sulfur treated electrodeposited ZnO/Cu₂O solar cell,* 5^thInternational Science Congress 8^th - 9^th December 2015 Tribhuvan University, Kathmandu, Nepal (2015) Karannagoda M. D. C. Jayathilaka, Loku S. R. Kumara, Shinji Kohara, Osami Sakata, Vassilios Kapaklis, Withana Siripala, Jayanetti K. D. S. Jayanetti *Annealing effects of the sulfur treated n-type and p-type cuprous oxide,* The 76^th JSAP Autumn Meeting 2015 Sep. 13-16 Nagoya congress center Nagoya Japan (2015) J.L.K. Jayasingha, K.N.D. Bandara, K.M.D.C. Jayathilaka³, M.S. Gunewardene,D.P. Dissanayake, J.K.D.S. Jayanetti *Cu₂O Thin Films Based LP Gas Sensor on a Spiral Geometry* Proceedings of the Postgraduate Symposium, University of Colombo (2015) Bandara Nayana Dammika, Charith Jayathilaka, Siyath Gunewardene, Dhammike Dissanayake, Sumedha Jayanetti^,*Effects of surface modification in n-Cu₂O/p-Cu_xS thin film heterostructures for enhanced Liquefied Petroleum gas sensing properties* 5^th European Conference on Crystal Growth 9-11 September 2015 Area dellaRicerca CNR, Bologna, Italy (2015) KMDC Jayathilaka, V Kapaklis, W Siripala and JKDS Jayanetti; Annealing Effects of Electrodeposited Cl-doped Cuprous Oxide Thin Films on Ti substrate, (IVC 2015) -Research Journal of Recent Sciences -2015 K.M.D.C. Jayathilaka, A.M.R. Jayasinghe, G.U. Sumanasekara, V. Kapaklis, W. Siripala and J.K.D.S. Jayanetti, *Effect of chlorine doping on electrodeposited cuprous oxide thin films on Ti substrates,* Phys. Status Solidi B, 1–6 (2015) / DOI 10.1002/pssb.201451646 (2015) JKDS Jayanetti, KMDC Jayathilaka, Vassilios Kapaklis, Withana P Siripala (2014) Sample of: Sulfur treated n-type and p-type Cu₂O thin films, Sample Of Science 1,0017. doi: 10.21558/sos-2014-0017 KND Bandara, KMDC Jayathilaka, M.S. GunewardeneDP Dissanayaka, JKDS Jayanetti,*Effect of Sulfidation on n-type Cuprous* *Oxide thin films* *for gas sensing properties of Liquefied Petroleum,Proceedings of the Postgraduate Symposium, University of Colombo (2014) KMDC Jayathilaka,V Kapaklis,W Siripala, JKDS Jayanetti, Sulfur treatment of n- type and p- type cuprous oxide thin films, European Materials Research Society (E-MRS), Fall Meeting, September 14^th to 19^th , Warsaw, Poland (2014) JKDS Jayanetti, KMDC Jayathilaka, V Kapaklis, W Siripala, Electrodeposited cuprous oxide thin films for solar energy applications, European Materials Research Society (E-MRS), Fall Meeting, September 14^th to 19^th, Warsaw, Poland (2014) KDRN Kalubovila, KMDC Jayathilaka, MS Gunewardene, W Siripala, JKDS Jayanetti, Low Cost Ambient Light Sensing Device based on Sulphided Cu₂O Thin Film Photo-Sensors, Electronic Devices, Volume 3, Issue 2, September, pp.43-51(2014) KND Bandara, KMDC Jayathilaka, DP Dissanayaka, JKDS Jayanetti, Temperature Effects on Gas Sensing Properties of Electrodeposited Chlorine Doped and Undoped n-Type Cuprous Oxide Thin Films, Journal of Sensor Technology, 4, pp.119-126 (2014) KMDC Jayathilaka, V Kapaklis, W Siripala, JKDS Jayanetti, Electrodeposited sulfur passivated cuprous oxide thin films for solar energy applications, “National Development through Research and Innovation” HETC Symposium- p.135 (2014) KMDC Jayathilaka, V Kapaklis, W Siripala, JKDS Jayanetti, Synthesis and characterization of cuprous oxide nanoparticles, 1^st international virtual congress, June 5^th -10^th, ISCA-IVC-2014-11MatS-01(2014) KND Bandara, KMDC Jayathilaka, DP Dissanayaka, W Siripala, JKDS Jayanetti, Effect of chlorine doping on gas sensing properties of electrodeposited n-type cuprous oxide thin films, Proc. Technical Sessions, 30, IPSL, Sri Lanka, pp.11-16 (2014) KMDC Jayathilaka, V Kapaklis, W Siripala, JKDS Jayanetti, Surface treatment of electrodeposited n-type Cu₂O thin films for applications in Cu₂O based devices, Physica Status Solidi RRL, Vol.8 No. 6, pp.592-595, (2014) KMDC Jayathilaka, V Kapaklis, W Siripala, JKDS Jayanetti, Ammonium Sulfide Surface Treatment of Electrodeposited p-Type Cuprous Oxide Thin Films, Electronic Materials Letters, Vol.10, No.2. pp.379-382 (2014) KMDC Jayathilaka, V Kapaklis, W Siripala, JKDS Jayanetti, Fabrication and characterization of electrodeposited CuO/Cu₂O hetrojunction solar cell,* Proc. 69^th Tech. Sess. SLASS (2013) KMDC Jayathilaka, V Kapaklis, W Siripala, JKDS Jayanetti, *Enhancement of the photovoltaic conversion efficiency of electrodeposited p-n homojunction cuprous oxide solar cells by surface passivation,* Proc. 69^th Tech. Sess. SLASS (2013) KND Bandara, KMDC Jayathilaka, V Kapaklis, W Siripala, JKDS Jayanetti; *Electrodeposited Cl-doped cuprous oxide thin films for gas sensing applications, Proc. 69^th* Tech. Sess. SLASS (2013) KMDC Jayathilaka, LSR Kumara, V Kapaklis, W Siripala, JKDS Jayanetti, Efficiency improvement of electrodeposited p-n homojunction cuprous oxide solar cells by surface passivation and annealing, 7 ^th Asia - Oceania Forum for Synchrotron Radiation Research (AOFSRR) Japan (2013) KMDC Jayathilaka, V Kapaklis, W Siripala, JKDS Jayanetti, Efficiency improvement of cuprous oxide based solar cells by Cl doping, Solar Asia 2013, Proc. Inte. Conf. (Solar Asia 2013), Kuala Lumpur, Malaysia, pp. 92-96 (2013) KMDC Jayathilaka, V Kapaklis, W Siripala, JKDS Jayanetti, Electrodeposition of Cl doped cuprous oxide thin films on Ti substrates for solar cells, 4^thInsym-SUSL, January 11^th-12^th 2013, Belihuloya, Sri Lanka (2013) KMDC Jayathilaka, V Kapaklis, W Siripala, JKDS Jayanetti, *Photocurrent enhancement of electrodeposited Cl doped cuprous oxide thin films on Ti substrates by annealing,* Proc. 68^thTech. Sess. SLASS (2012) KND Bandara, KMDC Jayathilaka, V Kapaklis, W Siripala, JKDS Jayanetti, *Electrodeposited nano-crystalline cuprous oxide thin films for gas sensing applications, Proc. 68^thTech. Sess. SLASS (2012) KMDC Jayathilaka, V Kapaklis, W Siripala, JKDS Jayanetti, Substrate effect on photocurrent enhancement of electrodeposited n-type Cu₂O thin films, Proceedings of the Postgraduate Symposium, University of Colombo (2012) KMDC Jayathilaka, V Kapaklis, W Siripala, JKDS Jayanetti, Sulfidation of electrodeposited microcrystalline/nanocrystalline cuprous oxide thin films for solar energy application,* Semicond. Sci. Technol. 27,125019 (2012) KMDC Jayathileka, V Kapaklis, W Siripala, JKDS Jayanetti, *Sulphidation of electrodeposited Cl doped cuprous oxide thin films for solar energy applications,* International Conference on Advanced Materials, Science and Engineering, July 01-04, Colombo, Sri Lanka (2012) KDRN Kalubowila, KMDC Jayathileka, W Siripala, JKDS Jayanetti, *Construction of Cu₂O thin film based light detector,* Proc. 28^th Tech. Sess. Inst. Phys., Sri Lanka (2012) KMDC Jayathileka, W Siripala, JKDS Jayanetti, *Sulphidation of electrodeposited nanocrystalline cuprous oxide thin films for solar energy applications,* Solar Asia 2011, Proc. Inte. Conf. (Solar Asia 2011), Kandy, Sri Lanka, pp. 112-119 (2011) KMDC Jayathileka,W Siripala and JKDS Jayanetti, *Electrodeposited nano-crystalline cuprous oxide thin films for solar energy applications,* Proceedings of the Postgraduate Symposium, University of Colombo (2011) W. Siripala, KMDC Jayathileke, JKDS Jayanetti, *Low cost solar cells with electrodeposited cuprous oxide, Journal of Bionanoscience,3,* pp-118-123 (2009) PA Praveen Janantha, LNL Perera, KMDC Jayathilaka, JKDS Jayanetti, DP Dissanayaka and WP Siripala, Use of *Cu₂O* *microcrystalline thin film semiconductors for gas sensing, Proc. 25^th* Tech. Sess. Inst. Phys., Sri Lanka (2009) KMDC Jayathilaka,W Siripala, JKDS Jayanetti, *Electrodeposition of n-type, p-type and p-n homojunction cuprous oxide thin films,* Sri Lankan Journal of Physics, (2008) KMDC Jayathilake, W Siripala, WTMAPK Wanninayake, JKDS Jayanett, *Fabrication and characterization of Eectrodeposited nanocrystalline / microcrystalline Cuprous Oxide thin films solar cells, Proc. 9^th* Annual Research Symp. 2008, University of Kelaniya (2008) KMDC Jayathilaka, W Siripala, JKDS Jayanetti, *Electrodepostion of nanocrystalline Cuprous Oxide thin films for solar energy application, Proc. 8^th* Annual Research Symp. 2007, University of Kelaniya (2007) KMDC. Jayathilaka, W Siripala, JKDS Jayanetti, Donor and Accepter Density Variation in Electrodeposited Cuprous Oxide thin films, Proc. 23^rd Tech. Sess. Inst. Phys., Sri Lanka (2007) KMDC Jayathilaka, W Siripala, JKDS Jayanetti, *Fabrication of an electrodeposited p-n junction photoelectrode for solar energy applications, Proc. Annual Research Symp.2006, Faculty of Graduate studies, University of Kelaniya, Abstracts (2006) KMDC Jayathilaka, WJM Samaranayake, Design of an Electronic House Protection System, Proc. 60^th* Tech. Sess. SLASS (2004)

Membership in Professional Societies

Patents and Inventions

Patents:

i. International Publication under Patent Cooperation Treaty (PCT)

TN Gurusinghe, LDPS Jayasekara, HE Wijesooriya, RMIU Rajapaksha, PLAK Piyumal, JA Seneviratne, ALAK Ranaweera, KMDC Jayathilaka, LBDRP Wijesundera and SRD Kalingamudali, (2022). System and method for addressable data communication using Radio Frequency Communication, (WO 2022/189847 A1). World Intellectual Property Organization - https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2022189847&_cid=P20-L8E3Q1-87682-1

ii. Sri Lankan Patents

TN Gurusinghe, LDPS Jayasekara, HE Wijesooriya, RMIU Rajapaksha, PLAK Piyumal, JA Seneviratne, ALAK Ranaweera, KMDC Jayathilaka, LBDRP Wijesundera and SRD Kalingamudali, (2022). System and method for addressable data communication, processing, control, and visualization based on RF wireless communication with or without an Internet connection, Sri Lankan Patent No 21656. National Intellectual Property Office

iii. Sri Lankan Patents (Pending)

RMIU Rajapaksha, PLAK Piyumal, LDPS Jayasekara, TN Gurusinghe, , HE Wijesooriya, JA Seneviratne, ALAK Ranaweera, KMDC Jayathilaka, LBDRP Wijesundera and SRD Kalingamudali, (2022). AI-based Smart LP Gas Level Indicator, Sri Lankan Patent No 22121. National Intellectual Property Office
LDPS Jayasekara, HE Wijesooriya, TN Gurusinghe, RMIU Rajapaksha, PLAK Piyumal, JA Seneviratne, ALAK Ranaweera, KMDC Jayathilaka, LBDRP Wijesundera and SRD Kalingamudali, (2022). Addressable Data Communication System for Industry Automation and Industrial Internet of Things (IIoT) Based on Controller Area Network (CAN) Protocol, Sri Lankan Patent No 22424. National Intellectual Property Office
RMIU Rajapaksha, MPAV Gunawardhana, PLAK Piyumal, LDPS Jayasekara, TN Gurusinghe, HE Wijesooriya, JA Seneviratne, ALAK Ranaweera, KMDC Jayathilaka, LBDRP Wijesundera and SRD Kalingamudali, (2022). Neutral Connection-free Liquid-petroleum-gas/propane Sensitive Safety Electrical Switch, Sri Lankan Patent No 22450. National Intellectual Property Office
LDPS Jayasekara, TN Gurusinghe, HE Wijesooriya, MPAV Gunawardhana, RMIU Rajapaksha, PLAK Piyumal, JA Seneviratne, ALAK Ranaweera, KMDC Jayathilaka, LBDRP Wijesundera and SRD Kalingamudali, (2023). Smart Battery-Less Identification Card with Location Tracking and Attendance Monitoring Capabilities, Sri Lankan Patent No 22621. National Intellectual Property Office
HE Wijesooriya, LDPS Jayasekara, TN Gurusinghe, RMIU Rajapaksha, MPAV Gunawardhana, PLAK Piyumal, JA Seneviratne, ALAK Ranaweera, KMDC Jayathilaka, LBDRP Wijesundera and SRD Kalingamudali, (2023). Automated Stand-alone Wireless Water Quality Monitoring and Rainwater Harvesting System, Sri Lankan Patent No 22622. National Intellectual Property Office

Industrial Designs:

RMIU Rajapaksha, MPAV Gunawardhana, HE Wijesooriya, LDPS Jayasekara, TN Gurusinghe, PLAK Piyumal, JA Seneviratne, ALAK Ranaweera, KMDC Jayathilaka, LBDRP Wijesundera and SRD Kalingamudali, (2023). Safety Electrical Switch, Sri Lankan Industrial Design No 13787
HE Wijesooriya, RMIU Rajapaksha, LDPS Jayasekara, TN Gurusinghe, MPAV Gunawardhana, PLAK Piyumal, JA Seneviratne, ALAK Ranaweera, KMDC Jayathilaka, LBDRP Wijesundera and SRD Kalingamudali Internet Independent Wireless Real-Time Water Quality Monitoring Unit, Sri Lankan Industrial Design No 13786
RMIU Rajapaksha, PLAK Piyumal, HE Wijesooriya, LDPS Jayasekara, TN Gurusinghe, JA Seneviratne, ALAK Ranaweera, KMDC Jayathilaka, LBDRP Wijesundera and SRD Kalingamudali, (2022). Emergency Shut Off Liquid Petroleum Gas Regulator for Domestic Use, Sri Lankan Industrial Design No 13613
RMIU Rajapaksha, PLAK Piyumal, HE Wijesooriya, LDPS Jayasekara, TN Gurusinghe, JA Seneviratne, ALAK Ranaweera, KMDC Jayathilaka, LBDRP Wijesundera and SRD Kalingamudali, (2022). Smart Liquid Petroleum Gas Level Indicator, Sri Lankan Industrial Design No 13554

Industrial Designs (Pending):

RMIU Rajapaksha, MPAV Gunawardhana, HE Wijesooriya, LDPS Jayasekara, TN Gurusinghe, PLAK Piyumal, JA Seneviratne, ALAK Ranaweera, KMDC Jayathilaka, LBDRP Wijesundera and SRD Kalingamudali, (2022). Digital Irrigation Control Unit, Sri Lankan Industrial Design No 13741
TN Gurusinghe, RMIU Rajapaksha, HE Wijesooriya, LDPS Jayasekara, MPAV Gunawardhana, PLAK Piyumal, JA Seneviratne, ALAK Ranaweera, KMDC Jayathilaka, LBDRP Wijesundera and SRD Kalingamudali, (2023). Individually Controllable Parametric Speaker Array, Sri Lankan Industrial Design No 13785

Commercialised innovations:

The innovation Remotely Controllable Regulator Connected in Series with Resistive and Inductive Loads has been commercialised with Orel Corporation (Private) Limited, and the product launch was held on April 2023
In addition, Patent numbers 20365, 21656, 22121, 22424, and 22450 are already being commercialised with 8 License agreements and waiting for the product launches

Special Achievements / Awards