▎ 摘　　要

NOVELTY - Process for preparing composite material based on reduced graphene oxide (rGO) derivative/copper gallium dioxide involves introducing graphene oxide into a Teflon (RTM: PTFE) autoclave together with copper and gallium precursors and adopting a hydrothermal method at 250 degrees C for 6 hours to result in semiconductor materials with hexagonal plate morphology and a high degree of crystalline phase purity. USE - The process is useful for preparing composite materials based on rGO derivative/copper gallium dioxide with applications in dye-sensitized solar cells and sensors development. ADVANTAGE - The process adopts a single-step synthesis.