▎ 摘　　要

NOVELTY - The sensor (100) has a first graphene electrode (120) and a second graphene electrode patterned on a surface of a flexible substrate (110). A light metering part is arranged between the first graphene electrode and the second graphene electrode. A carbon nanotube channel (130) is formed with a light absorption material (140), which is exposed to an outer side to accommodate light. The light absorption material comprises porphyrinic material. The carbon nanotube channel surrounds a full upper surface of the second graphene electrode and the first graphene electrode. USE - Optical sensor for use in an information processing field, an optical communication field and a health care field. ADVANTAGE - The sensor simplifies change of the dispersed carbon nanotube so as to reduce electric conduction by physical transformation and improve working performance of the sensor. The sensor has high elasticity and light weight. The sensor varies sensitivity about light wavelength band absorbed according to a molecular structure so as to improve selectivity about the light wavelength band by a structure for exchanging a porphyrinic molecule, so that productivity and yield of the sensor can be increased. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for producing a photo sensor. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of an optical sensor. Optical sensor (100) Flexible substrate (110) Graphene electrode (120) Carbon nanotube channel (130) Light absortion material (140)