A high-performance long-wave infrared photodetector based on a WSe<sub>2</sub>/PdSe<sub>2</sub> broken-gap heterodiode
Suofu Wang, Yajie Bai, Mingli Liu, Xiaolan Zong, Wenhui Wang, Qing-Ge Mu, Tao Han, Feng Li, Shaoliang Wang, Lei Shan, Mingsheng Long
Abstract
We designed a broken-gap WSe 2 /PdSe 2 heterodiode demonstrating competitive performance in uncooled long-wave infrared photodetection with a low noise equivalence power of 4.5 × 10 −11 W Hz −1/2 and a high specific detectivity of 1.8 × 10 8 cm Hz 1/2 W −1 .
Topics & Concepts
PhotodetectorInfraredMaterials scienceOptoelectronicsOpticsPhysics2D Materials and ApplicationsPerovskite Materials and ApplicationsChalcogenide Semiconductor Thin Films