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Recent submissions

ICAPS 2020: Recent submissions

Now showing items 61-80 of 116

Influence of ZnS buffer layer on CdS/CdTe based solar cells

Madhuwanthi, H.M.L.U.,; Mahanama, G.D.K.; De Silva, D.S.M. (Faculty of Science, University of Kelaniya, Sri Lanka, 2020)

Among thin film materials, cadmium sulfide (CdS) is the best suited window material as a heterojunction partner in cadmium telluride (CdTe) based solar cells due to its wide and direct band gap. In order to enhance the ...
Vector Autoregressive (VAR) model for forecasting water level in Attanagalu Oya

Anuruddhika, M.L.P.; Premarathna, L.P.N.D.,; Perera, K.K.K.R.,; Hansameenu, W.P.T.; Weerasinghe, V.P.A. (Faculty of Science, University of Kelaniya, Sri Lanka, 2020)

Flood is one of the major natural hazards in the world. Sri Lanka also undergoes flooding incidents every year. Both natural and human-induced activities such as precipitation, unplanned infrastructures, water drainage, ...
Feasibility of classifying brainwave data extracted from commercially available EEG headset using deep learning techniques

Gunawardhana, M.P.A.V.,; Jayatissa, C.A.N.W.K.; Seneviratne, J.A. (Faculty of Science, University of Kelaniya, Sri Lanka, 2020)

Electroencephalography (EEG) is the process of observing the electrical activity of the brain. In recent years there has been an increase in the availability of low-cost EEG headsets in the consumer market. This study was ...
Effects of ZnO on inverted P3HT:PCBM bulk heterojunction solar cells

Wanigasekara, G.; Namawardana, D.G.K.K.; Wanninayake, W.T.M.A.P.K.,; Jayathilaka, K.M.D.C.,; Wijesundera, R.P.; Siripala, W. (Faculty of Science, University of Kelaniya, Sri Lanka, 2020)

Low cost, low environmental impact, ease of mass production and many more promising attributes of Organic Solar Cells (OSCs) have inspired researchers to investigate OCSs for increasing their performance and stability in ...
Fabrication of inverted polymer based organic solar cells on stainless steel substrate

Namawardana, D.G.K.K.; Wanigasekara, G.; Wanninayake, W.T.M.A.P.K.; Jayathilaka, K.M.D.C.; Wijesundera, R.P.; Siripala, W. (Faculty of Science, University of Kelaniya, Sri Lanka, 2020)

In the past years, polymer based organic solar cells (OSCs) have become a widely researched topic as a potential candidate for producing clean and renewable energy due to their lightweight, high mechanical flexibility, and ...
Comparison of the properties of CZTS semiconductor films grown by sequential and single step electrodeposition techniques

Fernando, W.T.R.S.; Jayathilaka, K.M.D.C.; Wijesundera, R.P.; Siripala, W. (Faculty of Science, University of Kelaniya, Sri Lanka, 2020)

Cu2ZnSnS4 (CZTS) is a promising semiconductor material suitable for application in low-cost and environmentally friendly thin film solar cells due to its superior optoelectronics properties. It is a perfect absorber material ...
A numerical simulation of the effect of the surface defect layer (SDL) properties on 3D/2D perovskite solar cell performance

Adihetty, N.L.; Ratnasinghe, D.R.; Attygalle, M.L.C.; Narayan, N.S.; Jha, P.K. (Faculty of Science, University of Kelaniya, Sri Lanka, 2020)

Organic-inorganic hybrid perovskites have become one of the promising solar cell materials in photovoltaic because of their low cost and excellent performance. In this study, we have modelled a hybrid organic-inorganic ...
Performance investigation of Perovskite/CIGS tandem solar cell using numerical modelling and simulation

Ratnasinghe, D.R.; Adihetty, N.L.; Attygalle, M.L.C. (Faculty of Science, University of Kelaniya, Sri Lanka, 2020)

In the modern world, multi-billion projects are going on researching photovoltaic (PV) devices. Considering the global energy demand the contribution of solar power is still negligible. Therefore, researchers are working ...
Implementation of a wireless distributed node-based system for monitoring, controlling and data logging of a Parabolic Trough Concentrator

Viraj, M.P.S.; Perera, H.E.; Kumara, P.D.C.; Jayaweera, H.H.E. (Faculty of Science, University of Kelaniya, Sri Lanka, 2020)

Solar thermal energy harnessing through a Parabolic Trough Concentrator (PTC) type plant is the most efficient and cheapest technique in the field of renewable energy harnessing. Near real time performance monitoring and ...
Time series analysis and forecasting of sector-wise electricity production and consumption in Sri Lanka

Lakshika, B.H.H.; Dissanayaka, D.M.P.V. (Faculty of Science, University of Kelaniya, Sri Lanka, 2020)

Electricity is one of the main power sources all over the world. Electricity can be defined as Sri Lanka's’ primary breath since disparities of electricity mainly impact on country's socio and economic well-being. Therefore, ...
Reduction of experimental error in coconut research by choosing proper data analysis techniques

Fernando, W.H.H.; Waidyarathn, K.P.; Jayasundara, D.D.M. (Faculty of Science, University of Kelaniya, Sri Lanka, 2020)

Accurate data analysis techniques are essential in field experiments to correctly understand the influence of independent variables on the dependent variable/s. This study compares different statistical techniques used in ...
Time series models to forecast number of registered cars in Sri Lanka

Sanjeewani, D.S.; Hewaarachchi, A.P.; Gunaratne, M.D.N. (Faculty of Science, University of Kelaniya, Sri Lanka, 2020)

Even though Sri Lanka is a developing country, the automobile industry of Sri Lanka displays rapid growth recently. The Department of Motor Traffic reports indicates that the number of vehicle registrations has been steadily ...
Effect of thermal annealing of CBD-CdS on the electrical properties of CBD-CdS/ED-CdTe solar cell

Gajanayake, G.K.U.P.; De Silva, D.S.M.; Atapattu, H.Y.R.; Thivakarasarma, T. (Faculty of Science, University of Kelaniya, Sri Lanka, 2020)

Chemical bath deposition, Electrodeposition, Thermal annealing, CdS/CdTe solar cell Thermal annealing is one of the key steps to enhance the optoelectronic properties of the CdS/CdTe solar cells. In this study, the effects ...
Effect of film thickness on characteristic properties of thermally evaporated cadmium sulphide thin films

Lakmal, A.A.I.; Kumarasinghe, R.K.K.G.R.G.; Seneviratne, V.A.; Dassanayake, B.S. (Faculty of Science, University of Kelaniya, Sri Lanka, 2020)

Cadmium sulphide (CdS) thin films are regarded as one of the most promising materials for heterojunction solar cells. Due to its wide bandgap (~ 2.42 eV), CdS thin films have been used as the window material together with ...
An investigation of the variation of shear strength of soil with its moisture content

Bandara, P.G.R.V.R.; Punyasena, M.A. (Faculty of Science, University of Kelaniya, Sri Lanka, 2020)

The mechanical behavior of soil is highly dependent on its shear strength. Cohesion and internal friction angle and effective stress of soil are important factors of soil shear strength. The key objective of this study was ...
Enhancement of photovoltaic performance of Cu2O homojunction by introducing a ZnO buffer layer

Thejasiri, S.A.A.B.; Kafi, F.S.B.; Wijesundera, R.P.; Siripala, W. (Faculty of Science, University of Kelaniya, Sri Lanka, 2020)

Cuprous oxide (Cu2O) is a semiconductor material having the capability of producing a theoretical conversion efficiency of 20% which is acceptable for solar energy applications. In this investigation, we have explored the ...
Use of Google Earth Engine to monitor surface water: A case study in water tanks located in the dry zone of Sri Lanka

Perera, H.E.; Jayaweera, H.H.E. (Faculty of Science, University of Kelaniya, Sri Lanka, 2020)

Water is a valuable and limited resource that needs to be managed properly. The amount of surface water changes over time due to a variety of reasons including rainfall, temperature, wind patterns and agricultural usage. ...
Identification of factors and classifying the accident severity in Colombo Katunayake expressway, Sri Lanka using multinomial logistic regression

Kushan, M.A.K.; Chandrasekara, N.V. (Faculty of Science, University of Kelaniya, Sri Lanka, 2020)

Accidents are one of the main social problems in the World, which cause damages or injuries unintentionally and unexpectedly. This is a major issue affecting not only in developing countries like Sri Lanka but also in ...

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