▎ 摘　　要

NOVELTY - The dual-band tunable room temperature infrared photoelectric detector comprises lead, source/drain electrode (1), graphene (3), bottom electrode film (4) and ferroelectric film (5). The top of source/drain electrode is a metal electrode for receiving detected infrared light signal. The source/drain electrode and graphene are for collecting graphene and negative charge generated after receiving infrared light signal, and forming a source/drain current through a connecting wire. USE - Dual-band tunable room temperature infrared photoelectric detector used in early warning, remote sensing and aerospace fields. ADVANTAGE - The double-band tunable room temperature infrared photoelectric detector can be with the substrate to Van der Waals force contact without considering the lattice matching problem, without complex epitaxial growth process, which greatly reduces the production cost. The damage to the material and the generation of the unsmooth edge in the process of graphene processing are avoided. The process of processing is simplified. DESCRIPTION OF DRAWING(S) - The drawing shows a front view of the structure of a dual-band tunable room temperature infrared photoelectric detector. Source/drain electrode (1) Graphene (2) Substrate (3) Bottom electrode film (4) Ferroelectric film (5)