PHOTODETECTORS BASED ON TWO-DIMENSIONAL QUANTUM DOTS

摘要

A photodetector (200) includes a bottom electrode (210); an interlayer (220) disposed on the bottom electrode; a photoabsorbing layer (230) disposed on the interlayer, the photoabsorbing layer having one or more charge transport materials, and a plurality of two- dimensional quantum dots (2D QDs) dispersed in the one or more charge transport materials; and a top electrode (240) disposed on the photoabsorbing layer. A heterostructure photodetector (300) includes a bottom electrode (310); a first photoabsorbing layer (320) disposed on the first electrode, the first photoabsorbing layer having a first photoabsorbing material; a second photoabsorbing layer (330) disposed on the first photoabsorbing layer, the second photoabsorbing layer having a second photoabsorbing material; and a top electrode (340) disposed on the second photoabsorbing layer; at least one of the first or second photoabsorbing material is a plurality of two-dimensional quantum dots (2D QDs).