▎ 摘　　要

NOVELTY - A surface-decorated flexible graphene self-heating gas sensor comprises a pattern of graphene that is decorated with metal nanoparticles formed on a flexible substrate, and detects a gas by applying an external voltage. USE - A surface-decorated flexible graphene self-heating gas sensor used for internet of things (IoT), smart sensors, wearable devices, and mobile device. ADVANTAGE - The self-heating transparent gas sensor has increased selectivity for specific gasses through micro- or nano-patterning and surface decoration of graphene. The gas sensor can be manufactured economically without an external heater. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) flexible graphene self-heating gas sensor array comprising patterns of graphene that are formed on a flexible substrate in which portion of each of the patterns of graphene is decorated with metal nanoparticles, and detects a gas by applying an external voltage; and (2) manufacturing a surface-decorated flexible graphene self-heating gas sensor array which involves forming a graphene layer on a substrate; forming a pattern of the graphene; coating a flexible substrate solution on the patterned graphene layer and curing; removing the substrate; and decorating a portion of patterned graphene with metal nanoparticles. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of gas-sensing pattern of a flexible sensor array.