捷克先令
化学
钼
薄膜
退火(玻璃)
太阳能电池
拉曼光谱
纳米技术
背景(考古学)
化学工程
光电子学
无机化学
冶金
光学
材料科学
古生物学
物理
工程类
生物
作者
Jonathan J. Scragg,Jörn Timo Wätjen,Marika Edoff,Tove Ericson,Tomáš Kubart,Charlotte Platzer‐Björkman
摘要
Experimental proof is presented for a hitherto undetected solid-state reaction between the solar cell material Cu2ZnSn(S,Se)4 (CZTS(e)) and the standard metallic back contact, molybdenum. Annealing experiments combined with Raman and transmission electron microscopy studies show that this aggressive reaction causes formation of MoS2 and secondary phases at the CZTS|Mo interface during thermal processing. A reaction scheme is presented and discussed in the context of current state-of-the-art synthesis methods for CZTS(e). It is concluded that alternative back contacts will be important for future improvements in CZTS(e) quality.
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