Dual-function of CdCl2 treated SnO2 in Sb2Se3 solar cells

Dual-function of CdCl2 treated SnO2 in Sb2Se3 solar cells
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CdCl2 处理的 SnO2 在 Sb2Se3 太阳能电池中的双重功能

DOI:
10.1016/j.apsusc.2020.147632
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发表时间:
2020-08
影响因子:
6.7
通讯作者:
Ziyang Hu
Ziyang Hu
中科院分区:
材料科学1区
文献类型:
--
作者:
Jing Zhou;Xintong Zhang;Hanbo Chen;Zheqing Tang;Dan Meng;Kailin Chi;Yongmao Cai;Gengxin Song;Yu Cao;Ziyang Hu

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Sb 2Se 3薄膜太阳能电池的电子传输层(ETL)不仅负责电子的提取和传输,而且还控制Sb 2Se 3光活性层的生长方向,这对性能优化至关重要。在这项研究中,溶液处理的SnO 2薄膜与氯化镉处理的双重功能,实现了作为ETL的Sb 2Se 3太阳能电池。CdCl 2处理同时提高了SnO 2 ETL的效率,并诱导Sb 2Se 3晶粒的纵向生长。这两个方面有效地增强了电子传输和/或提取,从而减少了电荷复合,这有助于改善所有器件参数。结果表明,CdCl 2处理优化了SnO 2 ETL的界面性质,为提高Sb 2Se 3太阳能电池的性能提供了一种简便有效的方法。
The electron transport layer (ETL) of Sb2Se3thin film solar cells is not only responsible for electron extraction and transport but also manipulates the orientation of the Sb2Se3photoactive layer’s growth, which is crucial for performance optimization. In this study, the dual functionality of solution-processed SnO2film treated with CdCl2was achieved as the ETL in Sb2Se3solar cells. The CdCl2treatment simultaneously improves the efficacy of the SnO2ETL and induces the longitudinal growth of Sb2Se3grains. These two aspects effectively enhance electron transport and/or extraction, thereby reducing the charge recombination, which contributes to the improvement of all device parameters. The results demonstrate that CdCl2treatment optimizes the interface properties of the SnO2ETL, providing a facile and effective method for enhancing the performance of the Sb2Se3solar cell.
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