Low-Symmetry Van der Waals Dielectric GaInS3 Triggered 2D MoS2 Giant Anisotropy via Symmetry Engineering

© 2024 Wiley‐VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 36(2024), 46 vom: 27. Nov., Seite e2410469
1. Verfasser: Sun, Zongdong (VerfasserIn)
Weitere Verfasser: Liu, Jie, Xu, Yongshan, Xiong, Xiong, Li, Yuan, Wang, Meihui, Liu, Kailang, Li, Huiqiao, Wu, Yanqing, Zhai, Tianyou
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article GaInS3 MoS2/GaInS3 heterojunction anisotropic conductance dielectrics polarization‐sensitive photodetector symmetry engineering
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520 |a Low-symmetry structures in van der Waals materials have facilitated the advancement of anisotropic electronic and optoelectronic devices. However, the intrinsic low symmetry structure exhibits a small adjustable anisotropy ratio (1-10), which hinders its further assembly and processing into high-performance devices. Here, a novel 2D anisotropic dielectric, GaInS3 (GIS), which induces isotropic MoS2 to exhibit significant anisotropic optical and electrical responses is demonstrated. With the excellent gate modulation ability of 2D GIS (dielectric constant k ∼12), MoS2 field effect transistor (FET) shows an adjustable conductance ratio from isotropic to anisotropic under dual-gate modulation, up to 106. Theoretical calculations indicate that anisotropy originates from lattice mismatch-induced charge density deformation at the interface. Moreover, the MoS2/GIS photodetector demonstrates high responsivity (≈4750 A W-1) and a large dichroic ratio (≈167). The anisotropic van der Waals dielectric GIS paves the way for the development of 2D transition metal dichalcogenides (TMDCs) in the fields of anisotropic photonics, electronics, and optoelectronics 
650 4 |a Journal Article 
650 4 |a GaInS3 
650 4 |a MoS2/GaInS3 heterojunction 
650 4 |a anisotropic conductance 
650 4 |a dielectrics 
650 4 |a polarization‐sensitive photodetector 
650 4 |a symmetry engineering 
700 1 |a Liu, Jie  |e verfasserin  |4 aut 
700 1 |a Xu, Yongshan  |e verfasserin  |4 aut 
700 1 |a Xiong, Xiong  |e verfasserin  |4 aut 
700 1 |a Li, Yuan  |e verfasserin  |4 aut 
700 1 |a Wang, Meihui  |e verfasserin  |4 aut 
700 1 |a Liu, Kailang  |e verfasserin  |4 aut 
700 1 |a Li, Huiqiao  |e verfasserin  |4 aut 
700 1 |a Wu, Yanqing  |e verfasserin  |4 aut 
700 1 |a Zhai, Tianyou  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Advanced materials (Deerfield Beach, Fla.)  |d 1998  |g 36(2024), 46 vom: 27. Nov., Seite e2410469  |w (DE-627)NLM098206397  |x 1521-4095  |7 nnas 
773 1 8 |g volume:36  |g year:2024  |g number:46  |g day:27  |g month:11  |g pages:e2410469 
856 4 0 |u http://dx.doi.org/10.1002/adma.202410469  |3 Volltext 
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