Performance improvement of flexible CZTSSe thin film solar cell by adding a Ge buffer layer

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• 作者：Jinze Li^a ; Honglie Shen^a ; ^b ; ^{hlshen@nuaa.edu.cn} ; Huirong Shang^a ; Yufang Li^a ; ^b ; Wenwen Wu^a
• 关键词：Flexible CZTSSe solar cell ; Ge buffer layer ; Promoting effect ; Sputtering
• 刊名：Materials Letters
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：190
• 期：Complete
• 页码：188-190
• 全文大小：926 K
• 卷排序：190

文摘

A flexible solar cell with Ge layer between Ti substrate and Mo was fabricated. Ge diffused into CZTSSe thin film and promoted grain growth. Ge suppressed crack formation in Mo layer due to the reduced thermal stress. The efficiency of Ge buffered flexible CZTSSe solar cell got an increase of 200%.