Enhanced solar cell performance of Cu₂ZnSn(S,Se)₄ thin films through structural control by using multi-metallic stacked nanolayers and fast ramping process for sulfo-selenization

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• 作者：Wei-Chao Chen^a ; ^b ; ^c ; ^{chen.weichao0129@gmail.com}Author Vitae ; Cheng-Ying Chen^c ; ^{chen.chengying.cyc@gmail.com}Author Vitae ; Venkatesh Tunuguntla^a ; ^c ; ^{2venkateshs@gmail.com}Author Vitae ; Shao Hung Lu^d ; ^{paul79319@yahoo.com.tw}Author Vitae ; Chaochin Su^d ; ^{f10913@ntut.edu.tw}Author Vitae ; Chih-Hao Lee^b ; ^{chlee@mx.nthu.edu.tw}Author Vitae ; Kuei-Hsien Chen^a ; ^c ; ^{chenkh@pub.iams.sinica.edu.tw}Author Vitae ; Li-Chyong Chen^c ; ^{chenlc@ntu.edu.tw}Author Vitae
• 关键词：CZTSSe ; Thin films solar cells ; Multi-metallic stacked precursor
• 刊名：Nano Energy
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：30
• 期：Complete
• 页码：762-770
• 全文大小：2121 K
• 卷排序：30

文摘

High quality Cu2ZnSn(S,Se)4 thin films have been obtained by rapid-ramping sulfo-selenization of 9-layer stacked metallic nanolayer precursors (9LYS). Nanolayers stacking facilitate the easy inter-diffusion of metallic precursors. Uniform and homogenous grain size distribution of CZTSSe thin film is achieved. Insufficient inter-diffusion of metallic precursors and excessive Cu-rich secondary phase can be suppressed. The 9LYS-CZTSSe device exhibits a 58% enhancement in efficiency from 4.9 to 7.7%.