Single-layer tin disulfide thin film and two-dimensional heterojunction and preparation method thereof

A two-dimensional heterojunction and tin disulfide technology, which is applied in electrical components, circuits, semiconductor devices, etc., can solve the problems of immature tin disulfide film preparation process and difficulty in obtaining single-layer films.
CN111106166AInactive Publication Date: 2020-05-05XIAMEN UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
XIAMEN UNIV
Publication Date
2020-05-05
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a single-layer tin disulfide thin film and a two-dimensional heterojunction and a preparation method thereof. Stannous sulfide powder and sulfur powder are used as raw materials, a large-area single-layer tin disulfide semiconductor thin film is prepared and generated on a graphene substrate by using a chemical vapor deposition method, and a novel two-dimensional vertical heterostructure is constructed. The single-layer tin disulfide film prepared by the method is flat in structure and uniform in thickness, and the size can be effectively controlled by changing processconditions; the two-dimensional heterojunction is formed by the single-layer tin disulfide thin film and a graphene film with the single atomic layer thickness, so that the structural characteristicsof a material system can be improved, and the single-layer tin disulfide thin film can be applied to a micro-nano optoelectronic device.
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Description

technical field

[0001] The invention belongs to the field of semiconductors and their manufacture, and in particular relates to a single-layer tin disulfide thin film, a two-dimensional heterojunction and a preparation method thereof. Background technique

[0002] Graphene-like two-dimensional materials, such as transition metal chalcogenides, IIIA-VA, IVA-VIA compounds, etc., have been widely studied due to their tunable bandgap and potential applications in catalysis, electronics, optoelectronics, etc. focus on. Two-dimensional heterostructure materials, by stacking and arranging different two-dimensional materials in a certain order in a manner similar to Lego bricks, use the weak interaction between layers to realize the regulation and improvement of the properties of two-dimensional materials. This kind of two-dimensional heterostructure system with new physical and chemical properties is a hot spot in international scientific research. However, it is quite difficult ...

Claims

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