Tunable crystal structure of Cu-Zn-Sn-S nanocrystals for improving photocatalytic hydrogen evolution enabled by copper element regulation

作     者：Zhe Yin Min Hu Jun Liu Hao Fu Zhijie Wang Aiwei Tang Yabao Zhang;Jun Zheng;Peipei Ma;Xueyi Zheng;Zhi Liu;Yuhua Zuo;Chuanbo Li;Buwen Cheng

作者机构：Key Laboratory of Luminescence and Optical InformationMinistry of EducationSchool of ScienceBeijing Jiaotong UniversityBeijing 100044China Key Laboratory of Semiconductor Materials ScienceInstitute of SemiconductorsChinese Academy of SciencesBeijing 100083China Beijing Key Laboratory of Low Dimensional Semiconductor Materials and DevicesInstitute of SemiconductorsChinese Academy of SciencesBeijing 100083China College of Materials Science and Opto-Electronic TechnologyUniversity of Chinese Academy of SciencesBeijing 100049China 

出 版 物：《Journal of Semiconductors》 (半导体学报（英文版）)

年 卷 期：2022年第43卷第9期

页      面：68-73页

核心收录：

学科分类：081702[工学-化学工艺] 081705[工学-工业催化] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070205[理学-凝聚态物理] 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）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：the National Natural Science Foundation of China(Nos.61974009 62075005 and 62105019) 

主　　题：photocatalytic hydrogen evolution wurtzite Cu-Zn-Sn-S nanocrystals 

摘      要：Hydrogen energy is a powerful and efficient energy resource,which can be produced by photocatalytic water *** the photocatalysis,multinary copper-based chalcogenide semiconductor nanocrystals exhibit great potential due to their tunable crystal structures,adjustable optical band gap,eco-friendly,and abundant *** this paper,Cu-Zn-Sn-S(CZTS)nanocrystals with different Cu content have been synthesized by using the one-pot *** regulating the surface ligands,the reaction temperature,and the Cu content,kesterite and hexagonal wurtzite CZTS nanocrystals were *** critical factors for the controllable transition between two phases were ***,a series of quatern-ary CZTS nanocrystals with different Cu content were used for photocatalytic hydrogen *** their band gap,energy level structure,and charge transfer ability were compared *** a result,the pure hexagonal wurtzite CZTS nano-crystals have exhibited an improved photocatalytic hydrogen evolution activity.