Hamri, Y.Z. and Bourezig, Yamina and Medles, M. and Ameri, Mohammed and Toumi, K. and Ameri, I. and Al-Douri, Yarub and Voon, Chun Hong (2019) Improved efficiency of Cu(In,Ga)Se2 thinfilm solar cells using a buffer layer alternative to CdS. Solar Energy, 178. pp. 150-156. ISSN 0038-092X, DOI https://doi.org/10.1016/j.solener.2018.12.023.
Full text not available from this repository.Abstract
The chalcopyrite semiconductor CuInSe2 and its constitutes Ga and/or S [Cu (InGa)Se2 or Cu (InGa)(Se,S)2], commonly referred as CIGS have been leading thinfilms for incorporation in high-efficiency photovoltaics. In conventional ZnO-N/i-ZnO/CdS/CIGS solar cells, the traditional CdS buffer is nearly optimum for the commonly used 1.15 eV (CIGS) but less optimal for higher Ga. To overcome this limitation, Cd1-yZnyS is proposed as an alternative buffer layer to replace the standard CdS in CIGS thinfilm solar cells containing an ordered vacancy compound (OVC) layer. Next, the dependence of solar cells performance on the change of Ga and Zn concentrations in absorber and buffer layers, respectively, was investigated using the AMPS-1D software. The results are potential improvement in CIGS efficiency that was obtained with replacement of CdS buffer material by its alternative in one hand, another hand by formation of OVC layer. Lastly, the optimum values of Ga and Zn concentrations were found at 0.7 and 0.6, respectively, leading to a high conversion efficiency of around 23.71%.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | CIGS; CdZnS; Thin film; OVC; CBO |
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics |
| Divisions: | Nanotechnology & Catalysis Research Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 22 Jan 2019 02:11 |
| Last Modified: | 22 Jan 2019 02:11 |
| URI: | http://eprints.um.edu.my/id/eprint/20077 |
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