International Research Symposium on Pure and Applied Sciences (IRSPAS): Recent submissions

  • Effect of temperature on photosensitivity of electrodeposited n-Cu2O/p-CuxS thin film junctions 
    Madusanka, H.D.P.; Kalubowila, K.D.R.N.; Jayathilaka, K.M.D.C.; Jayanetti, J.K.D.S. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    The purpose of this study was the construction of a standalone microcontroller based ambient light sensing device to interface an ambient light sensor with a temperature correction and to study the effects of temperature ...
  • Semi-Automated Index based decision making engine for cyber foraging framework with minimal energy and performance cost 
    Vekneswaran, P.; Dissanayake, N.R. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Cyber Foraging is a concept to take advantage of the nearby underutilized computing resources (surrogates) to improve user experience of resource constraint handheld devices, by improving their performance while improving ...
  • The 3D atomic scale and electronic structure characterization of novel fcc ruthenium nanoparticles using synchrotron light source 
    Kumara, L.S.R.; Sakata, O.; Kohara, S.; Song, C.; Yang, A.; Kusada, K.; Kobayashi, H.; Kitagawa, H. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Ruthenium (Ru) is a 4d transition metal that in the bulk adopts hexagonal closepacked (hcp) structure at all temperature ranges, and novel face-centered cubic (fcc) Ru nanoparticles (NPs) have been observed to be more ...
  • Selective magnetic field localization for safety enhancement in wireless power transfer applications 
    Ranaweera, A.L.A.K. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    During the last decade wireless power transfer (WPT) has been immerged as one of the rapidly growing area of research. Wide range of its commercial applications such as charging pads, are appearing in market today. The ...
  • Plasmonic effects of gold nanoparticles on the performance of organic photovoltaic devices 
    Wanninayake, A. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Extracting energy from sun light is one of the most promising ways to solve today’s energy crisis. Direct conversion of sun energy to electrical energy using nanostructured organic/inorganic hybrid structures has attracted ...
  • Electrodeposition of CdTe thin films using a two electrode system 
    Wedisinghe, K.C.; Atapattu, H.Y.R.; de Silva, D.S.M. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Cadmium telluride (CdTe) is a promising material for thin film solar cell applications due to its ideal band gap of ~1.5 eV which has the ability to absorb the maximum of the solar spectrum and higher conversion efficiency ...
  • Localized modes of an electron by topological insulator defect 
    Kumara, R.D.M.M.; Hewageegana, P. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Topological insulators, a new class of materials discovered recently, have very unique topological properties. While the surface states are gapless and are topologically protected by the time reversal symmetry, the bulk ...
  • Energy efficient hybrid water heating system 
    Piyumal, P.L.A.K.; Nagahapitiya, N.W.H.G.B.; Jayatissa, N.W.K.; de Silva, D.S.M. (2016)
    As the world’s energy resources are diminishing, we need to find greener solutions through renewable energy sources that can generate electricity for heating, lighting homes and for a variety of commercial and industrial ...
  • Optimization and application of a gel polymer electrolyte in redox capacitors 
    Bandaranayake, C.M.; Weerasinghe, W.A.D.S.S.; Perera, K.S.; Vidanapathirana, K.P. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Energy production via renewable sources and saving it efficiently has become timely needed issues all around the globe. Supercapacitors have been identified as a class of suitable energy saving devices with respect to ...
  • Improvement of p-Cu2O/Au interface by controlling the pH of the electrodeposition bath of Cu2O 
    Kafi, F.S.B.; Jayathilekea, K.M.D.C.; Wijesundera, R.P.; Siripala, W. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Metal-Semiconductor junction studies play a very important role in discovering new junction properties leading to improved electronic devices. Indeed, Schottky junction is among the fundamental structures used in modern ...
  • Growth of CuZnS thin films by sequential electrodeposition and sulphurisation 
    Fernando, W.T.R.S.; Jayathilekea, K.M.D.C.; Wijesundera, R.P.; Siripala, W. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Copper Zinc Sulphide (CuZnS) is a promising new absorber material for solar cell applications. Indeed, this material is very attractive for low cost device applications due to abundance and low cost of the staring ...
  • Modelling the material cost of newspaper industry in Sri Lanka 
    Jayasinghe, J.M.T.N.; Abeygunawardana, R.A.B. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Pricing of a product is the most critical issue that confronts most of firms. In order to make a product price, the company has to master all product cost information as well as the product cost structure. In newspaper ...
  • Impact of mathematics on academic performance of engineering students: A canonical correlation Analysis 
    Nanayakkara, K.A.D.S.A.; Peiris, T.S.G. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Mathematics plays a key role in higher education as it is particularly essential to develop the analytical thinking of students. Mathematical skills would certainly assist to enhance students’ knowledge in a wide range ...
  • A novel, ultra-fast electrochemical tool to study speciation of trace metals in aqueous solution 
    Pathirathna, P.; Siriwardhane, T.; McElmurry, S.P.; Morgan, S.L.; Hashemi, P. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Trace metals play important roles in biological and ecological systems. In biology, trace metals act as catalytic or structural cofactors and regulate biochemical processes. In the environment, natural and anthropogenic ...
  • Surface characterization of chemically modified biochar derived from rice straw 
    Irosha, K.P.C.; de Silva, D.S.M.; Rathnaweera, D.R. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Biochar produced by decomposing variety of biomass feedstock is a carbon rich product that act as an efficient material for various applications such as contaminant management in soil and water, soil amendment in agriculture ...
  • Electrodeposition of well-adhered CdTe thin films for solar cell applications 
    Atapattu, H.Y.R.; de Silva, D.S.M.; Pathiratne, K.A.S. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Among the second generation thin film photovoltaics, CdS/CdTe based solar cell device is one of the leading contenders for large scale commercialization. Since the CdTe is the crucial absorber material of the foregoing ...
  • An investigation of the adsorption of dye (Bromothymol Blue) by Sri Lankan montmorillonite clay 
    Premaratne, W.A.P.J.; Perera, V.M. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Textile industries use dyes and pigments to color their products and thus produce wastewater containing organics with a strong color. However most of the synthetic dyes used in textile industry usually composed of aromatic ...
  • Extraction of copper from copper bearing sulfide ores (chalcopyrite) by oxidative chemical leaching 
    Premaratne, W.A.P.J.; Dharmarathna, A.C.S. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    The extraction of copper from primary copper sulfide ores is much complicated and expensive. However, the successful metal extraction from natural mineral resources is very important, both environmentally and economically. ...
  • Isolation and identification of naphthalene degrading bacteria from a polluted environment 
    Bandara, M.M.K.; Bamunuarachchige, T.C. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Hydrocarbon pollution is one of the major environmental problems and this has led to studies on use of hydrocarbon degrading bacteria for bioremediation. Isolation of hydrocarbon degrading bacteria from a polluted ...
  • Isolation and identification of some members of skin flora 
    Thushani, B.G.V.; Edirisinghe, E.A.A.D. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Skin is the largest organ of the human body and provides habitat for a diverse flora of microorganisms although it is an inhospitable place for many microorganisms because of the acidity and antimicrobial secretions of ...

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