Interface engineering of p-n heterojunction for kesterite photovoltaics:A progress review

作     者：Mingrui He Kaiwen Sun Mahesh P.Suryawanshi Jianjun Li Xiaojing Hao Mingrui He;Kaiwen Sun;Mahesh P.Suryawanshi;Jianjun Li;Xiaojing Hao

作者机构：School of Photovoltaic and Renewable Energy EngineeringUniversity of New South WalesSydneyNSW 2052Australia 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2021年第30卷第9期

页      面：1-8页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the Australian Renewable Energy Agency(ARENA,1-USO028,2017/RND006) the Australian Research Council(ARC)Future Fellowship programme(FT190100756) the ACAP postdoctoral fellowship supported by Australian Centre for Advanced Photovoltaics(Grant No.1-SRI001) the ACAP postdoctoral fellowship supported by Australian Centre for Advanced Photovoltaics(ACAP,RG200768-A) 

主　　题：Kesterite Thin film Solar cell Heterojunction Interface 

摘      要：Kesterite Cu_(2)ZnSn(S,Se)_4(CZTSSe)is considered one or the most promising thin-film photovoltaic(PV)technologies due to its bandgap tunability(1.0~1.5 eV)and high absorption coefficient(10^(4)cm^(-1)).However,the highest power conversion efficiency(PCE)of CZTSSe has so far only reached up to 12.6%,much lower than the theoretical limit defined by the Shockley-Queisser(SQ)*** large opencircuit voltage(V_(oc))deficit and inferior fill factor(FF)are prevalent in kesterite PV and hamper the improvement in *** this review,unfavourable energy band alignment at the CZTSSe/buffer junction,as well as defective interface are identified as two obstacles at the p-n *** issues contribute to the interface induced recombination,thus significantly reducing ***,we review recent advances in strategies to improve the efficiency by altering the characteristics of the interface,covering alternative buffer layers,heterojunction treatments and passivation ***,future research directions of heterojunction engineering are proposed as schemes towards the ideal interface in kesterite solar cells.