Deconvoluting the Photonic and Electronic Response of 2D Materials: The Case of MoS₂.

ABSTRACT: Evaluating and tuning the properties of two-dimensional (2D) materials is a major focus of advancing 2D science and technology. While many claim that the photonic properties of a 2D layer provide evidence that the material is "high quality", this may not be true for electronic performance. In this work, we deconvolute the photonic and electronic response of synthetic monolayer molybdenum disulfide. We demonstrate that enhanced photoluminescence can be robustly engineered via the proper choice of substrate, where growth of MoS₂ on r-plane sapphire can yield >100x enhancement in PL and carrier lifetime due to increased molybdenum-oxygen bonding compared to that of traditionally grown MoS₂ on c-plane sapphire. These dramatic enhancements in optical properties are similar

SUBMITTER: Zhang K 

PROVIDER: S-EPMC5717065 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature