▎ 摘　　要

NOVELTY - A flexible temperature sensor based on graphene nanowall is prepared by preparing graphene nanowall on metal or flexible substrates using tubular chemical vapor deposition (CVD), transferring graphene nanowall with polymer to form a graphene nanowall/polymer two-layer structure, and using silver paste brushing or other methods to connect the two ends of the graphene nanowall and silver or other metal wires as electrodes. USE - Preparation of flexible temperature sensor based on graphene nanowall for instrumentation, optoelectronic devices, and flexible electronic skin. ADVANTAGE - The sensor has simple structure, convenient processing, high sensitivity, light weight, flexibility, and good biocompatibility. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) method for polymer compounded on the lower surface of graphene nanowall which involves placing the resulting graphene nanowall in an etching solution to completely remove the metal substrate, using the polymer with thickness of 50 um to pick up the graphene nanowall from below and combine it, washing the resulting structure repeatedly with deionized water, hydrochloric acid, etc., and drying by nitrogen to obtain graphene nanowall/polymer two-layer structure temperature sensor; and (2) method of polymer embedded on the upper surface of graphene nanowall which involves spin-coating layer of polymer with thickness of 50 um on the obtained graphene nanowall, curing polymer to obtain polymer/graphene nanowall/two-dimensional copper structure, washing the resulting structure repeatedly with deionized water, hydrochloric acid, etc., and drying by Nitrogen to obtain polymer/graphene nanowall two-layer structure temperature sensor.