CdCl2 Activation of the ZnTe:As Back Contact Layer in CdTe Thin Film Solar Cells, Employing a CdS Sacrificial Layer

被引：0
|
作者：
Oklobia, Ochai [1 ]
Kartopu, Giray [1 ]
Irvine, Stuart J. C. [1 ]
机构：
[1] Swansea Univ, Coll Engn, Ctr Solar Energy Res, Opt Ctr, St Asaph Business Pk, Swansea LL17 0JD, W Glam, Wales
来源：
2019 IEEE 46TH PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC) | 2019年
基金：
英国工程与自然科学研究理事会;
关键词：
Thin films; CdTe; ZnTe back contact; CdS sacrificial layer; photovoltaic cells;
D O I：
10.1109/pvsc40753.2019.8980552
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Incorporating ZnTe:As back contact to CdTe thin film solar cells is an attractive alternative to Cu treated ZnTe back contacts, getting rid of Cu diffusion and subsequent long term stability issues. However, the Zn loss by the formation of volatile ZnCl2 during CdCl2 deposition heat treatment for the back-contact activation remains a challenge. The aim of this work is to develop an effective activation process for ZnTe:As back contacts, which is expected to improve CdTe solar cell efficiencies. To minimize Zn loss, a thin CdS sacrificial cap layer was evaluated which was deposited on ZnTe:As via MOCVD prior to the contact layer activation step.
引用
收藏
页码：165 / 168
页数：4
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