Search Results - "Dharmadasa, I M"

How to Achieve Efficiencies beyond 22.1% for CdTe-Based Thin-Film Solar Cells by Dharmadasa, I., Alam, A.

“…This review paper summarises the key issues of CdTe and CdS/CdTe solar cells as observed over the past four decades, and focuses on two growth techniques,…”
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Intense Pulsed Light Treatment of Cadmium Telluride Nanoparticle-Based Thin Films by Dharmadasa, Ruvini, Lavery, Brandon, Dharmadasa, I. M, Druffel, Thad

“…The search for low-cost growth techniques and processing methods for semiconductor thin films continues to be a growing area of research; particularly in…”
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Analysis of electrodeposited CdTe thin films grown using cadmium chloride precursor for applications in solar cells by Ojo, A. A., Dharmadasa, I. M.

“…Deposition of cadmium telluride (CdTe) from cadmium chloride (CdCl 2 ) and tellurium oxide has been achieved by electroplating technique using two-electrode…”
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Electrodeposition of CdS thin-films from cadmium acetate and ammonium thiosulphate precursors by Alam, A. E., Cranton, W. M., Dharmadasa, I. M.

“…Cadmium sulphide (CdS) thin-films have been electrodeposited using two electrode system to be used as the hole back diffusion barrier (hbdb) layer for graded…”
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Growth and Characterization of p-Type and n-Type Sb2Se3 for Use in Thin-Film Photovoltaic Solar Cell Devices by Bilya, Musa Abubakar, Nabok, Aleksey, Purandare, Yashodhan P., Alam, Ashfaque E., Dharmadasa, I. M.

“…In this study, a two-electrode electrodeposition technique was employed to grow thin films of antimony selenide (Sb2Se3) on glass/fluorine-doped tin oxide…”
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Electrodeposition of ternary compounds for novel PV application and optimisation of electrodeposited CdMnTe thin-films by Alam, A. E., Olusola, O. I., Loch, D. A. L., Shukla, K., Cranton, W. M., Dharmadasa, I. M.

“…Growth of polycrystalline CdMnTe ternary compound thin films has been carried out using cathodic electrodeposition technique at different cathodic potentials…”
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Effects of Thickness and Annealing on Optoelectronic Properties of Electrodeposited ZnS Thin Films for Photonic Device Applications by Echendu, O. K., Dharmadasa, I. M.

“…Thin layers of ZnS with thicknesses of 400 nm, 500 nm, and 700 nm have been electrodeposited on glass/fluorine-doped tin oxide substrates using a simple…”
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Third generation multi-layer tandem solar cells for achieving high conversion efficiencies by Dharmadasa, I.M.

“…Different ways of connecting solar cell structures to form multi-layer tandem solar cells have been considered by re-visiting relevant device designs. It is…”
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Development of Polyaniline Using Electrochemical Technique for Plugging Pinholes in Cadmium Sulfide/Cadmium Telluride Solar Cells by Abdul-Manaf, N. A., Echendu, O. K., Fauzi, F., Bowen, L., Dharmadasa, I. M.

“…Polyaniline (PAni) thin films were prepared by using an electrochemical polymerization technique on glass/FTO substrates by varying the deposition potential,…”
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Electrochemical Deposition of CdTe Semiconductor Thin Films for Solar Cell Application Using Two-Electrode and Three-Electrode Configurations: A Comparative Study by Dharmadasa, I. M., Oriaku, C. I., Okeoma, K. B., Echendu, O. K.

“…Thin films of CdTe semiconductor were electrochemically deposited using two-electrode and three-electrode configurations in potentiostatic mode for comparison…”
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Electrodeposition of CuInSe2 layers using a two-electrode system for applications in multi-layer graded bandgap solar cells by DHARMADASA, I. M, BURTON, R. P, SIMMONDS, M

“…In order to develop low-cost, large area multi-layer graded bandgap solar cell structures, CuInSe2 layers were grown using a simplified two-electrode system…”
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Electrodeposition of p-i-n type CuInSe2 multilayers for photovoltaic applications by CHAURE, N. B, YOUNG, J, SAMANTILLEKE, A. P, DHARMADASA, I. M

“…Copper indium diselenide polycrystalline thin films of p-, i- and n-type electrical conductivity were grown using a one-step electrodeposition process in a…”
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Third generation multi-layer graded band gap solar cells for achieving high conversion efficiencies—II: Experimental results by Dharmadasa, I.M., Roberts, J.S., Hill, G.

“…New designs of multi-layer graded band gap solar cell structures were experimentally tested using well-understood Al x Ga (1− x )As materials grown by the…”
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Unravelling complex nature of CdS/CdTe based thin film solar cells by Dharmadasa, I. M., Ojo, A. A.

“…Thin film solar cells based on CdS/CdTe hetero-structure has shown a drastic improvement changing from 16.5 to 22.1% efficiency during a short period of time…”
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Characterisation of chemical bath deposited CdS thin films on different substrates using electrolyte contacts by Samantilleke, A.P., Cerqueira, M.F., Heavens, S., Warren, P., Dharmadasa, I.M., Muftah, G.E.A., Silva, C.J.R., Marí, B.

“…Aqueous electrolyte contacts have been used to characterize CdS thin films grown using chemical bath deposition (CBD) on 4 different fluorine-doped tin oxide…”
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Perovskite solar cells: short lifetime and hysteresis behaviour of current–voltage characteristics by Dharmadasa, I. M., Rahaq, Y., Alam, A. E.

“…Perovskite solar cells have shown an impressive efficiency improvement over the past ~ 10 years achieving ~ 23% to date. However, the lifetime and instability…”
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Effects of multi-defects at metal/semiconductor interfaces on electrical properties and their influence on stability and lifetime of thin film solar cells by Dharmadasa, I.M., Bunning, J.D., Samantilleke, A.P., Shen, T.

“…This communication analyses some of the results observed for metal/n-CdTe interfaces in the mid-1980s, which could not be interpreted at that time. These…”
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Investigation of electronic quality of chemical bath deposited cadmium sulphide layers used in thin film photovoltaic solar cells by Chaure, N.B, Bordas, S, Samantilleke, A.P, Chaure, S.N, Haigh, J, Dharmadasa, I.M

“…The investigation of electronic quality of chemical bath deposited cadmium sulphide (CdS) layers was the main objective of this work. For completeness, the CdS…”
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Perovskite solar cells: a deep analysis using current–voltage and capacitance–voltage techniques by Dharmadasa, I. M., Rahaq, Y., Ojo, A. A., Alanazi, T. I.

“…Perovskite solar cells exhibiting ~ 14–15% efficiency were experimentally measured using current–voltage (I–V) and capacitance–voltage (C–V) techniques in…”
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Scientific complications and controversies noted in the field of CdS/CdTe thin film solar cells and the way forward for further development by Dharmadasa, I. M., Alam, A. E., Ojo, A. A., Echendu, O. K.

“…Cadmium telluride-based solar cell is the most successfully commercialised thin film solar cell today. The laboratory-scale small devices have achieved ~ 22%,…”
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