Environment-insensitive and gate-controllable photocurrent enabled by bandgap engineering of MoS₂ junctions.

ABSTRACT: Two-dimensional (2D) materials are composed of atomically thin crystals with an enormous surface-to-volume ratio, and their physical properties can be easily subjected to the change of the chemical environment. Encapsulation with other layered materials, such as hexagonal boron nitride, is a common practice; however, this approach often requires inextricable fabrication processes. Alternatively, it is intriguing to explore methods to control transport properties in the circumstance of no encapsulated layer. This is very challenging because of the ubiquitous presence of adsorbents, which can lead to charged-impurity scattering sites, charge traps, and recombination centers. Here, we show that the short-circuit photocurrent originated from the built-in electric field at the MoS₂ j

SUBMITTER: Shih FY 

PROVIDER: S-EPMC5359557 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature