Flexible stretchable temperature control conductor insulator reversible transformation material and application thereof

Abstract

The invention relates to a flexible stretchable temperature control conductor insulator reversible transformation material and an application thereof. The flexible stretchable temperature control conductor insulator reversible transformation material comprises liquid metal and a flexible base material, wherein a volume ratio of the liquid metal to the flexible base material is 1: (0.15-10). The material is advantaged in that the preparation method is simple, the resistance change range is large, the response speed is high, repeatability is good, the stretchability is high (780%), and 3D printing can be achieved. The material can be widely applied to various fields, for example, the material is further made into a flexible temperature switch, a temperature sensor, a stretchable semiconductor, a resistive random access memory and a low-temperature automatic protection device.

Description

technical field [0001] The invention belongs to the field of conductor-insulator conversion materials, and in particular relates to a flexible and stretchable temperature-controlled conductor-insulator reversible conversion material and its application. Background technique [0002] Materials that change conductivity through temperature are widely used in many fields, such as smart switches, sensors, semiconductors, and resistive memory. Traditional temperature-controlling conductor-insulator transition materials include Mott insulators, metal oxides, perovskites, organic diaphragms, etc., which are basically composed of solid rigid materials, without flexibility and stretchability, and cannot withstand stretching and bending , deformation, thus limiting its application in flexible electronics, wearable electronics that directly interact with people, etc. [0003] In order to improve the flexible and stretchable properties of traditional temperature-controlled conductor-ins...

AI Technical Summary

Problems solved by technology

Traditional temperature-controlling conductor-insulator transition materials include Mott insulators, metal oxides, perovskites, organic diaphragms, etc., which are basically composed of solid rigid materials, without flexibility and stretchability, and cannot withstand stretching and bending , deformation, thus limiting its application in flexible electronics, wearable electronics that directly interact with people, etc.

[0003] In order to improve the flexible and stretchable properties of traditional temperature-controlled conductor-insulator transition materials, researchers have mixed some filler materials with flexible silica gel and other materials; the filler materials mainly include carbon nanotubes, graphene, and solid metal particles, etc., but the composite materials obtained There are the following disadvantages: the range of resistance change is small, the resistance change can only be stimulated by pressure, the stretchability is poor, and the manufacturing process is complicated, etc.

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