▎ 摘　　要

NOVELTY - Manufacturing a graphene layer (50), comprises: providing a substrate (10); forming a metal layer on a first side of the substrate; forming a carbon source layer on the metal layer; providing a laser, which irradiates a second side of the substrate and passes through the substrate to form a graphene layer on an interface between the substrate and the metal layer; and providing an organic solvent and an acid solution to remove the carbon source layer and the metal layer respectively. USE - The method is useful for manufacturing a graphene layer (claimed), which is useful as a transparent electrode layer in optoelectronic devices. ADVANTAGE - The method: provides a high-density transparent graphene layer without performing transferring process, hence it is simple and cost effective, and reduces production time; and avoids cracking of the graphene, as compared to conventional methods. DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of the method of manufacturing the graphene layer. Substrate (10) Graphene layer (50)