Recent progress in defect engineering for kesterite solar cells  

作　　者：Kaiwen Sun Jialiang Huang Jianjun Li Chang Yan Xiaojing Hao 

机构地区：[1]Australian Centre for Advanced Photovoltaics,School of Photovoltaic and Renewable Energy Engineering,University of New South Wales,Sydney 2033,Australia

出　　处：《Science China(Physics,Mechanics & Astronomy)》2023年第1期18-33,共16页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the Australian Renewable Energy Agency(Grant Nos.1-USO028,and 2017/RND006);the Australian Research Council(ARC)Future Fellowship Programme(Grant No.FT190100756);the ACAP Postdoctoral Fellowship Supported by Australian Centre for Advanced Photovoltaics(Grant No.1-SRI001)。

摘　　要：Kesterite Cu_(2)ZnSn(S,Se)_(4)(CZTSSe)thin film solar cells have been regarded as one of the most promising thin film photovoltaic technologies,offering a low-cost and environmentally friendly solar energy option.Although remarkable advances have been achieved in kesterite solar cells,the performance gap relative to mature thin film photovoltaic technologies such as CIGSe and Cd Te remains large.Significant open-circuit voltage(V_(OC))deficit has been recognized as the main limiting factor to performance improvement,with undesirable intrinsic defects being a key culprit contributing to the low V_(OC).To realize the promise inherent in kesterite CZTS to become an earth-abundant alternative to existing thin film photovoltaic technologies with comparable performance,significant research effort has been invested to tackle the challenging defect issues.In this review,recent progress and achievements relevant to engineering improvements to the defect properties of the semiconductor have been examined and summarized.Promising strategies include:(i)manipulating the synthesis process to obtain a desirable reaction pathway and chemical environment;(ii)introducing cation substitution to increase the ionic size difference and supress the related band tailing deep-level defects;(iii)applying post deposition treatment(PDT)with alkaline elements to passivate the detrimental defects.These advances obtained from work on kesterite solar cells may lead to future high performance from this material and may be further extended to other earth-abundant chalcogenide photovoltaic technologies.

关 键 词：thin film solar cells kesterite solar cells Cu_(2)ZnSn(S Se)_(4)(CZTSSe CZTS) defect engineering 

分 类 号：TM914.4[电气工程—电力电子与电力传动]