▎ 摘　　要

NOVELTY - The detector (100) has a sheet-shaped graphene thin film (20) produced by deposition of graphene using a vapor carbon source. A nanoparticle layer (60) is formed on the sheet-shaped graphene thin film and patterned to define an electrode region of the sheet-shaped graphene thin film that is formed on a substrate (10). Nanoparticles (40) formed in the nanoparticle layer consist of zinc oxide, copper oxide or barium carbonate. An electrode area (30) is formed in the nano particle. An external circuit is provided with a power source connected to a resistor. USE - Optical detector for health care application, industrial application and soldier field. ADVANTAGE - The graphene thin film with an excellent conductivity performs the role of the channel and electrode. The electrical performance of the detector is improved. The detector is simple in structure and produced at low cost, thus improving productivity. The power consumption of the detector is reduced. The detector is manufactured in a simple manner. DETAILED DESCRIPTION - AN INDEPENDENT CLAIM is also included for a method for manufacturing an optical detector. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of an optical detector. Substrate (10) Sheet-shaped graphene thin film (20) Electrode area (30) Nanoparticles (40) Nanoparticle layer (60) Optical detector (100)