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The effect of Ag incorporation on the phase stability, crystallinity and band structure on the (Cu,Ag)2ZnSn(S,Se)4 kesterite solar cells
Conference paper

The effect of Ag incorporation on the phase stability, crystallinity and band structure on the (Cu,Ag)2ZnSn(S,Se)4 kesterite solar cells

Shih-Yuan Wei, Chung-Hao Cai, Wei-Chih Huang, Tzu-Hsuan Yeh and Chih-Huang Lai
2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015, 7356188
12/2015
DOI: https://doi.org/10.1109/PVSC.2015.7356188

Abstract

(Ag,Cu)2ZnSn(S,Se)4 ACZTSSe band engineering CZTSSe kesterite solar cells Electrical and Electronic Engineering Electronic Optical and Magnetic Materials
The effect of Ag incorporation on the kesterite CZTSSe thin film by vacuum process has been investigated aiming for the band engineering of the kesterite solar cells. Phase stability, crystalinity, morphology and optical properties of Ag2ZnSnSe thin film were firstly reported and measured by XRD, SEM and UV-visible spectrometer in this work. We have successfully fabricated the ACZTSe thin films over a wide range of composition and the optical band gap could be controlled by the Ag/(Cu+Ag) ratio in a range from 1.06eV to 1.3 eV. Finally, the cell performance around 4% was demonstrated by the ACZTSSe devices.

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