文献类型：期刊文献

英文题名：Defect-level trap optimization in Cu₂ZnSn(S,Se)₄ photovoltaic materials via Sb³⁺-doping for over 13% efficiency solar cells

作者：Li, Yingfen Chen, Xingye Wang, Runxi Zhou, Nian Huang, Fang Zhao, Jun Su, Zhenghua Chen, Shuo Liang, Guangxing

第一作者：李宇芳

通信作者：Chen, XY[1];Zhao, J[1];Liang, GX[1]

机构：[1]Guizhou Inst Technol, Coll Mat & Energy Engn, Guiyang 550003, Peoples R China;[2]Coll Phys & Optoelect Engn, Minist Educ & Guangdong Prov, Shenzhen Key Lab Adv Thin Films & Applicat, Key Lab Optoelect Devices & Syst, Shenzhen, Peoples R China

第一机构：贵州理工学院

通信机构：corresponding author), Coll Phys & Optoelect Engn, Minist Educ & Guangdong Prov, Shenzhen Key Lab Adv Thin Films & Applicat, Key Lab Optoelect Devices & Syst, Shenzhen, Peoples R China.

年份：2024

卷号：12

期号：17

起止页码：10260-10268

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY A

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001190786500001)】；

基金：This work was supported by the National Natural Science Foundation of China (62074102), the Science and Technology Plan Project of Shenzhen (20220808165025003) China, the Science and Technology Project of Guizhou Province (QKHJC-ZK[2023]YB130), and the Growth Plan for Young Science and Technology Talents of Guizhou Education Department (No. QJH KY[2017]223).

语种：英文

摘要：In this study, Sb2S3 was introduced into the two-step selenization process to promote bottom grain growth and reduce the surface roughness of the Cu2ZnSn(S,Se)(4) light-absorber layer. The introduction of Sb doping in Cu2ZnSn(S,Se)(4) can passivate bulk and interface defects and a small conduction band offset (CBO) can be found, which facilitate the improvement of heterojunction carrier transport properties. Similarly, simulations illustrated that Sb doping improved device efficiency by controlling bulk and interface defects and band alignment. This optimized method facilitated the penetration of Sb, resulting in a high-quality CZTSSe absorber layer. Ultimately, the research culminated in a significant enhancement, yielding a solar cell with an impressive efficiency of 13.11%. These findings offer new possibilities for kesterite solar cells and advance the potential of CZTSSe materials in thin film photovoltaic applications.