Paper-like-based flexible ultraviolet detector based on interface optimization and preparation method thereof

A technology with interface optimization and base flexibility, applied in the field of ultraviolet detection, can solve the problems of low mechanical strength of the film layer, incompatibility with industrialized mass production, complex process flow, etc., to achieve low cost, improve carrier transmission, and process steps. simple effect
CN109904243AActive Publication Date: 2019-06-18NANJING UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING UNIV OF SCI & TECH
Publication Date
2019-06-18

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Abstract

The invention discloses a paper-like-based flexible ultraviolet detector based on interface optimization and a preparation method thereof. A porous filter membrane is used as a flexible substrate; a silver nanowire thin film layer, a zinc oxide nanowire thin film layer and a CsPbBr3 nanosheet thin film layer are sequentially prepared on the flexible substrate to serve as a bottom electrode layer,a light sensing layer and an interface optimization layer respectively; single-layer graphene is attached to the top of the CsPbBr3 nanosheet thin film layer to serve as a transparent electrode; and the flexible ultraviolet detector with the silver nanowire / zinc oxide nanowire / CsPbBr3 nanosheet / graphene structure is constructed. The used solution method-based device construction process is simplein step and low in cost, and has the potential of large-area industrial production; and the prepared paper-like-based flexible ultraviolet detector has relatively high ultraviolet response and stablelight response performance.
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Description

technical field

[0001] The invention relates to the technical field of ultraviolet detection, in particular to a paper-like flexible ultraviolet detector based on interface optimization and a preparation method thereof. Background technique

[0002] In recent years, flexible light detection equipment has been widely used in communication, health and safety due to its excellent wearable characteristics, and ultraviolet light detection equipment has been successfully used in optical communication and military detection due to its strong anti-interference ability and high detection sensitivity. , biosensing, ozone detection and many other fields. Flexible and wearable ultraviolet photodetectors currently focus on fiber-like and fabric-like photodetectors. Although fiber-like devices can achieve 360° light detection, the mechanical strength of the inorganic light-sensing material layer grown directly on the flexible substrate is not high. , the dynamic contact between the whole...

Claims

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