All-Inorganic Perovskite Quantum Dot-Monolayer MoS₂ Mixed-Dimensional van der Waals Heterostructure for Ultrasensitive Photodetector.

ABSTRACT: 2D transition metal dichalcogenide (2D-TMD) materials and their van der Waals heterostructures (vdWHs) have inspired worldwide efforts in the fields of electronics and optoelectronics. However, photodetectors based on 2D/2D vdWHs suffer from performance limitations due to the weak optical absorption of their atomically thin nature. In this work, taking advantage of an excellent light absorption coefficient, low-temperature solution-processability, and long charge carrier diffusion length, all-inorganic halides perovskite CsPbI_{3- x} Br _x quantum dots are integrated with monolayer MoS₂ for high-performance and low-cost photodetectors. A favorable energy band alignment facilitating interfacial photocarrier separation and efficient carri

SUBMITTER: Wu H 

PROVIDER: S-EPMC6299711 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature