▎ 摘　　要

NOVELTY - An infrared sensor comprises a metal layer, a ferroelectric material layer disposed on one side of the metal layer, a graphene material layer disposed on a side of the ferroelectric material layer away from the metal layer, an electrode layer disposed on a side of the graphene material layer away from the ferroelectric material layer, an infrared absorbing layer disposed on a side of the electrode layer away from the graphene material layer, the heat conducting layer is disposed outside the ferroelectric material layer, where the graphene material layer and the electrode layer are connected the infrared absorbing layer and the metal layer, respectively. USE - Infrared sensor. ADVANTAGE - The infrared sensor has better effect of improving the sensitivity and accuracy of infrared signal intensity detection. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for detecting infrared signal strength.