▎ 摘　　要

NOVELTY - A printable graphene/zinc oxide nanocomposite temperature and humidity sensor electrode is prepared by taking 10 mg graphene powder, dispersing in 100 ml dimethyl formamide, sonicating for 1 hour, adjusting the viscosity and ultrasonicating for 1 hour to obtain a graphene conductive ink. The graphene conductive ink is added with 0.02 g nano-zinc oxide powder and dispersed ultrasonically to obtain graphene/zinc oxide nano-composite conductive ink. The graphene/zinc oxide nano-composite conductive ink is printed on a serpentine electrode and annealed in rapid thermal annealing system. USE - Printable graphene/zinc oxide nanocomposite temperature and humidity sensor electrode. ADVANTAGE - The electrode can be prepared with good linearity, high sensitivity, high stability and good response recovery time, in cost effective manner. DETAILED DESCRIPTION - A printable graphene/zinc oxide nanocomposite temperature and humidity sensor electrode is prepared by taking 10 mg graphene powder, dispersing in 100 ml dimethyl formamide, sonicating for 1 hour, adjusting the viscosity by adding ethylene glycol and glycerol and ultrasonicating for 1 hour to obtain a graphene conductive ink. The graphene conductive ink is added with 0.02 g nano-zinc oxide powder and dispersed ultrasonically to obtain graphene/zinc oxide nano-composite conductive ink. The graphene/zinc oxide nano-composite conductive ink is printed on a serpentine electrode, repeatedly printed for 20 times and placed in rapid thermal annealing system for annealing at 300 degrees C for 300 seconds under nitrogen protection atmosphere, where the solvent volume ratio of dimethyl formamide, ethylene glycol and glycerol is 50:45:5.