Room-temp mid-IR
Uses three-dimensional quantum confinement in QDs to suppress thermal carriers, aided by a built-in field in the gradient homojunction, keeping background-limited performance under little or no cooling and paving the way for low-cost solution-processed IR focal planes.
Xiaomeng, Xue · Chen, Menglu · Luo, Yuning · Tianling, Qin · Tang, Xin · Hao, Qun
Light: Science and Applications 2023
D* = 2.7 × 10^11 Jones at 4.2 μm, 80 K
D* > 10^11 Jones up to 200 K
D* > 10^10 Jones up to 280 K
D* = 7.6 × 10^9 Jones at 3.5 μm, 300 K