A method of using laser to prepare patterned graphene temperature sensor

Abstract

A method for preparing patterned graphene temperature sensor by laser provided by the present invention comprises the following steps: step 1, put the copper foil sample loaded with graphene into the corrosion solution to etch the foil, and the copper foil in the sample is After being completely etched, the graphene is transferred to deionized water for cleaning, and then the graphene is transferred to a transparent substrate; step 2, a geometric pattern arranged in an array is set on a flexible substrate loaded with graphene to obtain a A flexible substrate with geometric patterns, wherein the distance between two adjacent geometric patterns is 50-1000 μm; the side length of each pattern is 30-300 μm; step 3, using a pulsed laser to etch away the geometric The geometric pattern on the flexible substrate of the picture obtains the patterned graphene formed on the surface of the transparent substrate; step 4, the patterned graphene formed on the surface of the transparent substrate is assembled into a graphene temperature sensor; the preparation process of the present invention is safe, pollution-free, and can be used in The preparation process is completed in an open environment under normal temperature and pressure; at the same time, the invention fills the blank of the temperature sensor in the aspect of flexible transparent nanometer sensor.

Description

technical field

[0001] The invention belongs to the field of nanometer sensors, and in particular relates to a method for preparing a patterned graphene temperature sensor by using a laser. Background technique

[0002] We are about to enter an era of wearable smart products, the most critical part of which is a flexible and transparent user interface. The emergence of graphene provides a better choice for the next generation of wearable smart products. Graphene materials have unique physical and chemical properties, such as huge specific surface area, high intrinsic mobility, high Young's modulus, high thermal conductivity, high optical transparency and high electrical conductivity; compared with carbon nanotubes, graphene is more The characteristics of softness, biocompatibility, large surface area effect and easy to be chemically modified and functionalized have laid the foundation for realizing the sensitivity, intelligence and convenience of sensors. Among the many ap...

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