Preparation of MoS sub(2)-MoO sub(3) Hybrid Nanomaterials for Light-Emitting Diodes

A facile strategy to prepare MoS sub(2)-MoO sub(3) hybrid nanomaterials is developed, based on the heat-assisted partial oxidation of lithium-exfoliated MoS sub(2)nanosheets in air followed by thermal-annealing-driven crystallization. The obtained MoS sub(2)-MoO sub(3) hybrid nanomaterial exhibits p-type conductivity. As a proof-of-concept application, an n-typeSiC/p-typeMoS sub(2)-MoO sub(3) heterojunction is used as the active layer for light-emitting diodes. The origins of the electroluminescence from the device are theoretically investigated. This facile synthesis and application of hybrid nanomaterials opens up avenues to develop new advanced materials for various functional applications, such as in electrics, optoelectronics, clean energy, and information storage. LED's glow: MoS sub(2)-MoO sub(3) hybrid nanomaterials are prepared by the heat-assisted partial oxidation of MoS sub(2) nanosheets in air (1) followed by a thermal-annealing-driven crystallization (2). The obtained hybrid nanomaterial exhibits p-type conductivity and is employed in a heterojunction of n-typeSiC/p-typeMoS sub(2)-MoO sub(3) for light-emitting diodes (3), from which multi-wavelength electroluminescent emission is detected.