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http://dx.doi.org/10.17661/jkiiect.2021.14.2.122

The Korea Institute of Information, Electronics, and Communication Technology  

Lee, Dal-Ho (Department of Electronic Engineering, Gachon University)
Park, Jung-Cheul (Department of Electronic Engineering, Gachon University)
Publication Information
The Journal of Korea Institute of Information, Electronics, and Communication Technology / v.14, no.2, 2021 , pp. 122-127 More about this Journal
Abstract
This paper produces CdS thin film using ITO glass as substrates. The MDS (Multiplex Deposition Sputter System) was used to produce devices by changing RF power and deposition time. The manufactured specimen was analyzed for its optical properties. The purpose of this paper is to find the fabrication conditions that can be applied to the photo-absorbing layer of solar cells. When RF power was 50W and deposition time was 10 minutes, the thickness was measured at 64Å. At 100W, the thickness was measured at 406Å and at 150 W, the thickness was measured at 889Å. Thin films were found to increase in thickness as RF power increased. As a result of the light transmittance measurement, 550-850nm was observed to have a transmittance of approximately 70% or more when the RF power was 50W, 100W, and 150W. Increasing RF power increased thickness and increased particle size, resulting in increased thin film density, resulting in reduced light transmittance. When RF power was 100W and deposition time was 15 minutes, the band gap was calculated at 3.998eV. When deposition time is 20 minutes, it is 3.987eV, 150W is 3.965eV at 15 minutes, and 3.831eV at 20 minutes. It was measured that the band gap decreased as the RF power increased. At XRD analysis, diffraction peaks at 2Θ=26.44 could be observed regardless of changes in RF power and deposition time. The FWHM was shown to decrease with increasing deposition time. And it was measured that the particle size increased as RF power was constant and deposition time was increased.
Keywords
band gap; density; ITO glass; photoabsorption; RF power; transmittance;
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1 E.S.Cha, K.C.Park, B.T.Ahn. "Stability Improvement of CdTe Solar Cells using ZnTe:Na Back Contact,"Current Photo voltaic Research Vol.3, No.1, pp.10-15, 2015
2 K.H.Kim,"Study of Light-induced Degradation in Thin Film Silicon Solar Cells: Hydrogenated Amorphous Silicon Solar Cell and Nano-quantum Dot Silicon Thin Film Solar Cell",Journal of the Korean Solar Energy Society Vol. 39, No. 1, pp.1-8, 2019   DOI
3 B.E.McCandless, S.S.Hegedus,"Influence of CdS window layers on thin film CdS/CdTe solar cell performance", Proc.22th IEEE Photovoltaic Specialists Conferences, p.967,1991
4 T.L.Chu,S.S.Chu, C.Ferekides, C.Q.Wu, J.Britt,C.Wang,"High efficiency CdS/ CdTe solar cell from solution growth CdS films",Proc.22th IEEE Photovoltaic Specialists Conferences, p.952,1991
5 H.T.Tung, D.H. Phuc,"The Optimized Thickness of Silver Doping on CdS/ CdSe for Quantum Dot-Sensitized Solar Cell",International Journal of Photo energy, Vol.20, No.19, pp.1-7,2019
6 M. S. Ilangoa, S. K. Ramasesha, "Patterning of nanopillars-based CdS/ CdTe thin films for photonic applications", SURFACE ENGINEERING, Vol. 34, No. 12, pp. 907-914,2018
7 C.C Lin , Y.J. Chuang , W.H. Sun," Ultrathin singlecrystalline silicon solar cells for mechanically flexible and optimal surface morphology designs", Microelectron Eng. Vol.145,pp.128-132, 2015   DOI
8 N. E. Gorji,"Oxygen incorporation into CdS/CdTe thin film solar cells",Opt Quant Electron Vol.47, pp.2445-2453 2015   DOI
9 N.E. Gorji,"Electrical and optical characterization of R.F. sputtered CdTe thin films. IEEE Trans. Device Mater. Reliab. Vol.14, No.4, pp. 983-988, 2014   DOI
10 D.H.Lee, J.C.Park,"A Study on CdS Deposition using Sputtering", The Journal of Korea Institute of Infor mation & Electronic Communication Technology, Vol.13 No.4 ,pp.293-297, 2020
11 S.M.kim. C.W.Jeon, "Influence of CdS Post-deposition Treatment on CIGS Solar Cells", New&Renewable Energy 2016. Vol.12, No.1, pp.26-30, 2016
12 J.C.Park, S.N.Chu,"A Study on the Electrical and Optical Properties of CdS THin Film by Annealing for Solar Cell",Journal of the Korean Institute of Electrical and Electronic Materinal Engineers, Vol.22, No.11. p.999-1003, 2009