▎ 摘　　要

NOVELTY - A photodetector comprises: a substrate; a graphene layer (34) disposed on the substrate; a first electrode (E1) disposed on the graphene layer; and a second electrode (E2) disposed on the graphene layer, where the first and second electrodes are spaced apart from each other, and where each of the first and second electrodes comprises a complex transparent electrode. USE - In optical device such as camera (claimed). ADVANTAGE - The photodetector increases photocurrent based on interface expansion. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a method of manufacturing a photodetector, involving: providing a graphene layer on a substrate; providing a first electrode on the graphene layer; and providing a second electrode apart from the first electrode, on the graphene layer, where each of the first and second electrodes comprises a complex transparent electrode; and (2) an optical device comprising a photo device, where the photo device comprises the photodetector. DESCRIPTION OF DRAWING(S) - The figure shows a plan view of a photodetector. Graphene layer (34) First electrode (E1) Second electrode (E2) Portions of first electrode (P1, P2, P3) Portions of second electrode (P4, P5, P6)