Optical Characteristic Investigation on Copper Sulphide thin film for photovoltaic Applications

W. Christopher Immanuel¹ , S. Paul Mary Deborrah² , S.S.R. Inbanathan³

Section:Research Paper, Product Type: Isroset-Journal
Vol.7 , Issue.1 , pp.52-55, Feb-2019

CrossRef-DOI:   https://doi.org/10.26438/ijsrpas/v7i1.5255

Online published on Feb 28, 2019

Copyright © W. Christopher Immanuel, S. Paul Mary Deborrah, S.S.R. Inbanathan . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
Copper sulfide has been considered as the most superior optical and semiconductor material. The current fossil-fuel based economy has proven to be no longer sustainable, due to economical, political, and environmental concerns. The global demand of energy has additional than doubled during the last 40 years and the predictions show an expected increase of 50% with respect to the current situation. This further raise in global consumption can be mostly attributed to developing countries, with countries like China and India and the Middle East region playing a major role among them. The constantly growing energy demand cannot be satisfied by currently-used non renewable energy sources, mainly fossil fuels. Among all types of renewable resources, solar energy has the greatest development potential, since it is the biggest energy source available on Earth. In particular photovoltaic (PV), which is the direct change of solar irradiation into electricity, offers a great number of advantages: not only it is a technology that produces clean energy from an “inexhaustible and mostly import-independent resource”. Latest research findings indicate that possessions of thin film solar cells powerfully depend on the various deposition techniques chemical bath deposition (CBD) being unique of them. In this research, CBD method was used to deposit thin films of Copper (II) sulphide (Cu2S) on glass substrates. Solutions of copper (II) sulphate, thiourea and tartaric acid were used to deposit Cu2S thin films at constant temperature 40 ± 20C. The optical properties of films were investigated. Optical properties like reflectance and transmittance and band gap were determined. Transmittance of Cu2S thin films varied between 10% and 40% with wavelength of the light energy. This research explain optical characterization on Cu2S for solar cell application. The Results of optical properties like transmittance, reflectance and band gap also reported.

Key-Words / Index Term :
Semiconductors; Cu2S; Deposition Technique, Analysis

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