Characteristics and optimization of ZnO/CdS/CZTS photovoltaic solar cell
Abstract
In the present contribution a ZnO/CdS/CZTS structure with new thicknesses of the different layers has been proposed using solar cell capacitance simulator. The objective of this study is the improvement of the device efficiency while varying the thickness of the various layers and the CZTS system energy band-gap. Our results showed that cells with optimal values of thicknesses of 0.1, 0.02 and 1 µm for ZnO window layer, CdS buffer layer and CZTS absorber layer, respectively give conversion efficiency of 23.56%. Furthermore, the higher performance of these cells is obtained for a CZTS band-gap energy of about 1.45 eV. The obtained conversion efficiency is comparable to those previously reported in the literature.
- Publication:
-
Applied Physics A: Materials Science & Processing
- Pub Date:
- February 2018
- DOI:
- 10.1007/s00339-018-1626-1
- Bibcode:
- 2018ApPhA.124..199G