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Electric field tunability of the electronic properties and contact types in the MoS2/SiH heterostructure.

ABSTRACT: The generation of layered heterostructures with type-II band alignment is considered to be an effective tool for the design and fabrication of a highly efficient photocatalyst. In this work, we design a novel type-II MoS2/SiH HTS and investigate its atomic structure, electronic properties and contact types. In the ground state, the MoS2/SiH HTS is proved to be structurally and mechanically stable. The MoS2/SiH HTS generates type-II band alignment with separation of the photogenerated carriers. Both the electronic properties and contact type of the MoS2/SiH HTS can be modulated by an external electric field. The application of a negative electric field leads to a transformation from type-II to type-I band alignment. While the application of a positive electric field gives rise to a transition from semiconductor to metal in the MoS2/SiH HTS. These results could provide useful information for the design and fabrication of photoelectric devices on the MoS2/SiH HTS.

SUBMITTER: Nguyen ST 

PROVIDER: S-EPMC9403661 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature

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Electric field tunability of the electronic properties and contact types in the MoS<sub>2</sub>/SiH heterostructure.

Nguyen Son-Tung ST   Nguyen Chuong V CV   Nguyen-Ba Kien K   Le-Quoc Huy H   Hieu Nguyen V NV   Nguyen Cuong Q CQ  

RSC advances 20220825 37

The generation of layered heterostructures with type-II band alignment is considered to be an effective tool for the design and fabrication of a highly efficient photocatalyst. In this work, we design a novel type-II MoS<sub>2</sub>/SiH HTS and investigate its atomic structure, electronic properties and contact types. In the ground state, the MoS<sub>2</sub>/SiH HTS is proved to be structurally and mechanically stable. The MoS<sub>2</sub>/SiH HTS generates type-II band alignment with separation  ...[more]

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