Triphasic 2D Materials by Vertically Stacking Laterally Heterostructured 2H-/1T-MoS2 on Graphene for Enhanced Photoresponse

doi:10.1002/aelm.201700024

HFCAS OpenIR > 中科院固体物理研究所

	Triphasic 2D Materials by Vertically Stacking Laterally Heterostructured 2H-/1T-MoS2 on Graphene for Enhanced Photoresponse
	Cui, Weili 1; Xu, Shanshan 1; Yan, Bo 1; Guo, Zhihua 1; Xu, Qun 1; Sumpter, Bobby G.2; Huang, Jingsong 2; Yin, Shiwei 3; Zhao, Huijun 4,5; Wang, Yun4
	2017-07-01
发表期刊	ADVANCED ELECTRONIC MATERIALS
摘要	Recently the applications of 2D materials have been broadened by engineering their mechanical, electronic, and optical properties through either lateral or vertical hybridization. Here, the successful design and fabrication of a novel triphasic 2D material by vertically stacking lateral 2H-/1T-molybdenum disulfide (MoS2) heterostructures on graphene with the assistance of supercritical carbon dioxide is reported. This triphasic structure is experimentally shown to significantly enhance the photocurrent densities for hydrogen evolution reactions. First-principles theoretical analyses reveal that the improved photoresponse should be ascribed to the beneficial band alignments of the triphasic heterostructure. More specifically, electrons can efficiently hop to the 1T-MoS2 phase via the highly conductive graphene layer as a result of their strong vertical interfacial electronic coupling. Subsequently, the electrons acquired on the 1T-MoS2 phase are exploited to fill the photoholes on the photoexcited 2H-MoS2 phase through the lateral heterojunction structure, thereby suppressing the recombination process of the photoinduced charge carriers on the 2H-MoS2 phase. This novel triphasic concept promises to open a new avenue to widen the molecular design of 2D hybrid materials for photonics-based energy conversion applications.
文章类型	Article
关键词	2d Heterostructures Hydrogen Evolution Reactions Lateral Heterojunctions Photoresponse Triphasic Vertical Stacking
WOS标题词	Science & Technology ; Technology ; Physical Sciences
DOI	10.1002/aelm.201700024
关键词[WOS]	EFFICIENT HYDROGEN EVOLUTION ; DER-WAALS HETEROSTRUCTURES ; P-N-JUNCTION ; MOS2 NANOSHEETS ; MOLYBDENUM-DISULFIDE ; AB-INITIO ; GENERATION ; HYBRID ; HETEROJUNCTIONS ; PHOTOCATALYSTS
收录类别	SCI
语种	英语
项目资助者	National Natural Science Foundation of China(51173170 ; National Natural Science Foundation of China(51173170 ; National Natural Science Foundation of China(51173170 ; National Natural Science Foundation of China(51173170 ; National Natural Science Foundation of China(51173170 ; National Natural Science Foundation of China(51173170 ; National Natural Science Foundation of China(51173170 ; National Natural Science Foundation of China(51173170 ; Innovation Talents Award of Henan Province(N114200510019) ; Innovation Talents Award of Henan Province(N114200510019) ; Innovation Talents Award of Henan Province(N114200510019) ; Innovation Talents Award of Henan Province(N114200510019) ; Innovation Talents Award of Henan Province(N114200510019) ; Innovation Talents Award of Henan Province(N114200510019) ; Innovation Talents Award of Henan Province(N114200510019) ; Innovation Talents Award of Henan Province(N114200510019) ; Key program of science and technology from Zhengzhou Bureau of Science and Technology(121PZDGG213) ; Key program of science and technology from Zhengzhou Bureau of Science and Technology(121PZDGG213) ; Key program of science and technology from Zhengzhou Bureau of Science and Technology(121PZDGG213) ; Key program of science and technology from Zhengzhou Bureau of Science and Technology(121PZDGG213) ; Key program of science and technology from Zhengzhou Bureau of Science and Technology(121PZDGG213) ; Key program of science and technology from Zhengzhou Bureau of Science and Technology(121PZDGG213) ; Key program of science and technology from Zhengzhou Bureau of Science and Technology(121PZDGG213) ; Key program of science and technology from Zhengzhou Bureau of Science and Technology(121PZDGG213) ; Australian Research Council (ARC) Discovery Project ; Australian Research Council (ARC) Discovery Project ; Australian Research Council (ARC) Discovery Project ; Australian Research Council (ARC) Discovery Project ; Australian Research Council (ARC) Discovery Project ; Australian Research Council (ARC) Discovery Project ; Australian Research Council (ARC) Discovery Project ; Australian Research Council (ARC) Discovery Project ; Australian Commonwealth Government ; Australian Commonwealth Government ; Australian Commonwealth Government ; Australian Commonwealth Government ; Australian Commonwealth Government ; Australian Commonwealth Government ; Australian Commonwealth Government ; Australian Commonwealth Government ; 21101141) ; 21101141) ; 21101141) ; 21101141) ; 21101141) ; 21101141) ; 21101141) ; 21101141)
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000405205300007
引用统计	被引频次：31[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/33444
专题	中科院固体物理研究所
作者单位	1.Zhengzhou Univ, Coll Mat Sci & Engn, Zhengzhou 450052, Peoples R China 2.Oak Ridge Natl Lab, Ctr Nanophase Mat Sci & Computat, Sci & Engn Div, Oak Ridge, TN 37831 USA 3.Shaanxi Normal Univ, Sch Chem & Chem Engn, Key Lab Macromol Sci Shaanxi Prov, Xian 710062, Peoples R China 4.Griffith Univ, Griffith Sch Environm, Ctr Clean Environm & Energy, Gold Coast Campus, Nathan, Qld 4222, Australia 5.Chinese Acad Sci, Inst Solid State Phys, Ctr Environm & Energy Nanomat, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Cui, Weili,Xu, Shanshan,Yan, Bo,et al. Triphasic 2D Materials by Vertically Stacking Laterally Heterostructured 2H-/1T-MoS2 on Graphene for Enhanced Photoresponse[J]. ADVANCED ELECTRONIC MATERIALS,2017,3(7).
APA	Cui, Weili.,Xu, Shanshan.,Yan, Bo.,Guo, Zhihua.,Xu, Qun.,...&Wang, Yun.(2017).Triphasic 2D Materials by Vertically Stacking Laterally Heterostructured 2H-/1T-MoS2 on Graphene for Enhanced Photoresponse.ADVANCED ELECTRONIC MATERIALS,3(7).
MLA	Cui, Weili,et al."Triphasic 2D Materials by Vertically Stacking Laterally Heterostructured 2H-/1T-MoS2 on Graphene for Enhanced Photoresponse".ADVANCED ELECTRONIC MATERIALS 3.7(2017).