▎ 摘　　要

NOVELTY - The method involves providing an infrared detector i.e. uncooled infrared detector with an asymmetrically patterned graphene layer. An infrared radiation illumination is received at the infrared detector. A thermoelectric voltage is generated by the received infrared radiation illumination,. A reception of infrared radiation is indicated in response to the detection of the voltage. The infrared detector is provided with a dielectric slab sandwiched between the graphene layer and a back reflector. The graphene layer comprises a pattern of holes that is provided in a hexagonal array of holes. USE - Method for ultrasensitive infrared photodetection, infrared imaging and optoelectronic applications by using plasmon assisted thermoelectric effect in graphene. ADVANTAGE - The fast response time coupled with an electronically widely tunable absorption in cavity-coupled geometry enables the new classes of graphene-based uncooled photodetectors. The plasmon assisted photothermoelectric detection of infrared radiation that is based on 30-fold enhanced absorption of IR radiation up to ???60% using a nanostructured graphene sheet coupled with optical cavity and the asymmetric heating of the partially patterned graphene sheet by means of the quick conversion of the localized surface plasma (LSP) excitation energy to hot carrier energy, leading to a directly measurable temperature voltage. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a device with an infrared detector.