Carbon-free Cu2ZnSn（S,Se）4 film prepared via a non-hydrazine route

The kesterite Cu2ZnSn（S,Se）4（CZTSSe） is an ideal candidate for light harvesting materials in earth-abundant low-cost thinfilm solar cells（TFSC）. Although the solution-based processing is a most promising approach to achieve low-cost solar cells with high power conversion efficiency, the issues of po...

Full description

Saved in:
Bibliographic Details
Published in:中国科学：化学英文版 2014 (11), p.1552-1558
Main Author: ZOU YuGang LIU Jie ZHANG Xing JIANG Yan HU JinSong WAN Li-Jun
Format: Article
Language:English
Subjects:
制备
功率转换效率
无碳
结晶度
肼基
薄膜太阳能电池
资源丰富
路线
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The kesterite Cu2ZnSn（S,Se）4（CZTSSe） is an ideal candidate for light harvesting materials in earth-abundant low-cost thinfilm solar cells（TFSC）. Although the solution-based processing is a most promising approach to achieve low-cost solar cells with high power conversion efficiency, the issues of poor crystallinity and carbon residue in CZTSSe thin films are still challenging. Herein, a non-hydrazine solution-based method was reported to fabricate highly crystallized and carbon-free kesterite CZTSSe thin films. Interestingly, it was found that the synthetic atmosphere of metal organic precursors have a dramatic impact on the morphology and crystallinity of CZTSSe films. By optimizing the processing parameters, we were able to obtain a kesterite CZTSSe film composed of compact large crystal grains with trace carbon residues. Also, a viable reactive ion etching（RIE） processing with optimized etching conditions was then developed to successfully eliminate trace carbon residues on the surface of the CZTSSe film.
ISSN:1674-7291