南方科技大学知识苑(SUSTech KC): Two-dimensional type-II MSi<sub>2</sub>N<sub>4</sub>/InS (M = Mo, W) heterostructures for photocatalysis

题名	Two-dimensional type-II MSi₂N₄/InS (M = Mo, W) heterostructures for photocatalysis
作者	Shi, Li 1,2; Xu, Wangping 3,4; Qiu, Xia 1,2; Xiao, Xiaoliang 1,2; Wei, Haoran 1,2; Duan, Yuanhao 1,2; Wang, Rui 1,2; Fan, Jing5 ; Wu, Xiaozhi 1,2
通讯作者	Xu, Wangping; Wu, Xiaozhi
发表日期	2023-09-25
DOI	10.1063/5.0167993
发表期刊	APPLIED PHYSICS LETTERS 影响因子和分区
ISSN	0003-6951
EISSN	1077-3118
卷号	123 期号:13
摘要	Recently, two-dimensional (2D) ternary monolayer MSi2N4 (M = Mo, W) was synthesized by chemical vapor deposition. However, monolayer MSi2N4 (M = Mo, W) has an indirect bandgap, which seriously hinders its application in optoelectronic devices. Herein, we propose two MSi2N4/InS (M = Mo, W) van der Waals heterojunctions (vdWHs) possessing type-II band alignments by first-principles. Our results indicate that these vdWHs achieve an indirect-to-direct bandgap transition and exhibit fascinating optical absorption spectra in the range of visible light. Moreover, the light absorption efficiencies of both vdWHs are significantly strengthened, and the intrinsic electric field of vdWHs can effectively promote the separation of photogenerated electron-hole pairs. In particular, the most significant electron mobility of MSi2N4/InS (M = Mo, W) vdWHs is up to 6.6 x 10(3) cm(2) V-1 s(-1), demonstrating their considerable potential for optoelectronic device applications. Notably, MSi2N4/InS (M = Mo, W) vdWHs can facilitate water splitting due to their suitable band edges. Therefore, our findings demonstrate two 2D MSi2N4/InS (M = Mo, W) type-II vdWHs with fascinating potentials for photocatalysis.
相关链接	[来源记录]
收录类别	SCI ; EI
语种	英语
重要成果	NI论文
学校署名	其他
资助项目	This work was supported in part by the Natural Science Foundation of China (Grant Nos. 12174040, 12147102, 12204398, and 52273175), the Chongqing Natural Science Foundation (Grant No. cstc2020jcyj-msxmX0118), the Department of Science and Technology of Hun["12174040","12147102","12204398","52273175"] ; Natural Science Foundation of China[cstc2020jcyj-msxmX0118] ; Chongqing Natural Science Foundation[2023JJ40617] ; Department of Science and Technology of Hunan Province[2021A1515110127]
WOS研究方向	Physics
WOS类目	Physics, Applied
WOS记录号	WOS:001079929200018
出版者	AIP Publishing
EI入藏号	20234014843011
EI主题词	Chemical vapor deposition ; Electric fields ; Energy gap ; Light absorption ; Monolayers ; Optoelectronic devices ; Photocatalysis ; Van der Waals forces
EI分类号	Electricity: Basic Concepts and Phenomena:701.1 ; Semiconductor Devices and Integrated Circuits:714.2 ; Light/Optics:741.1 ; Optical Devices and Systems:741.3 ; Physical Chemistry:801.4 ; Chemical Reactions:802.2 ; Atomic and Molecular Physics:931.3
ESI学科分类	PHYSICS
来源库	Web of Science
引用统计	被引频次[WOS]：4
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/582936
专题	科学与工程计算中心
作者单位	1.Chongqing Univ, Inst Struct & Funct, Chongqing 401331, Peoples R China 2.Chongqing Univ, Dept Phys, Chongqing 401331, Peoples R China 3.Xiangtan Univ, Hunan Inst Adv Sensing & Informat Technol, Xiangtan 411105, Peoples R China 4.Foshan Southern China Inst New Mat, Foshan 528200, Guangdong, Peoples R China 5.Southern Univ Sci & Technol, Ctr Computat Sci & Engn, Shenzhen 518055, Peoples R China
推荐引用方式 GB/T 7714	Shi, Li,Xu, Wangping,Qiu, Xia,et al. Two-dimensional type-II MSi₂N₄/InS (M = Mo, W) heterostructures for photocatalysis[J]. APPLIED PHYSICS LETTERS,2023,123(13).
APA	Shi, Li.,Xu, Wangping.,Qiu, Xia.,Xiao, Xiaoliang.,Wei, Haoran.,...&Wu, Xiaozhi.(2023).Two-dimensional type-II MSi₂N₄/InS (M = Mo, W) heterostructures for photocatalysis.APPLIED PHYSICS LETTERS,123(13).
MLA	Shi, Li,et al."Two-dimensional type-II MSi₂N₄/InS (M = Mo, W) heterostructures for photocatalysis".APPLIED PHYSICS LETTERS 123.13(2023).