Enhanced Photoelectric SrOCuSbS2 of a [SrO]-Intercalated CuSbS2 Structure
- Kejun BuKejun BuState Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People’s Republic of ChinaUniversity of Chinese Academy of Sciences, Beijing 100049, ChinaMore by Kejun Bu,
- Mengjia LuoMengjia LuoState Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People’s Republic of ChinaUniversity of Chinese Academy of Sciences, Beijing 100049, ChinaMore by Mengjia Luo,
- Ruiqi WangRuiqi WangState Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People’s Republic of ChinaMore by Ruiqi Wang,
- Xian ZhangXian ZhangQian Xuesen Laboratory of Space Technology, China Academy of Space Technology, Beijing 100094, People’s Republic of ChinaMore by Xian Zhang,
- Jianqiao HeJianqiao HeState Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People’s Republic of ChinaUniversity of Chinese Academy of Sciences, Beijing 100049, ChinaMore by Jianqiao He,
- Dong WangDong WangState Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People’s Republic of ChinaUniversity of Chinese Academy of Sciences, Beijing 100049, ChinaMore by Dong Wang,
- Wei ZhaoWei ZhaoState Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People’s Republic of ChinaMore by Wei Zhao, and
- Fuqiang Huang*Fuqiang Huang*E-mail: [email protected]State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People’s Republic of ChinaState Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People’s Republic of ChinaMore by Fuqiang Huang
Abstract
A new two-dimensional (2D) layered oxysulfide, namely, SrOCuSbS2, was successfully synthesized at 160 °C by using a hydrazine-hydrothermal method. The compound crystallizes in the space group C2h2-P21/m (No. 11) of the monoclinic system. The crystal structure is composed of distorted chalcostibite-like ∞2[CuSbS2O]2– layers along the ab plane, in which the adjacent layers are separated by Sr2+ ions. Each layer contains infinite ∞1[Cu2S6]10– chains linked by [SbS4O]7– units. The optical band gap of the compound is 1.9 eV, presenting the dark red color. Due to the electronic insulating layer (EIL) of the SrO, SrOCuSbS2 shows a high photoelectric property with a photocurrent density of 3.5 mA/cm2 at 1 V. The results of density of states (DOS) reveal that the valence band maximum (VBM) mainly consists of Cu-3d and S-3p states, while Sb-5p, S-3p, and S-3s contribute to the conductive band minimum (CBM).
Cited By
This article is cited by 2 publications.
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- Mengjia Luo, Kejun Bu, Xian Zhang, Jian Huang, Ruiqi Wang, Fuqiang Huang. Intrinsically low thermal conductivity in a p-type semiconductor SrOCuBiSe 2 with a [SrO]-intercalated CuBiSe 2 structure. Chemical Communications 2020, 56 (31) , 4356-4359. https://doi.org/10.1039/D0CC00035C