%0 Journal Article
%T Novel Red Emission from MoO3/MoS2每MoO2每MoO3 Core每Shell Belt Surface
%J -
%D 2018
%R https://doi.org/10.1021/acsami.8b13784
%X Electrically driven red emission from MoS2每MoO2每MoO3 (MS-MO) hybrid-based metal每semiconductor每metal (MSM) devices is reported for the first time. MoO3 belts with high crystal quality and sufficient size are synthesized by thermal deposition. A layer of MS-MO hybrid is then produced on the belt surface to form MoO3/MS-MO core每shell by sulfurization. The devices exhibit unique electrical properties, a nonlinear I每V curve, and electric hysteresis characteristics at high applied biases (>2.4 V), where MS-MO hybrids act as electron transport channels. The electroluminescent current of the device increases to a set current limit over time when a constant bias is applied. The novel characteristics of the device are attributed to the space charge limited conduction (SCLC) mechanism occurring in MS-MO hybrids. The strong light emission is from recombination of excitons within the MoS2 phase. This work develops a simple and effective method to drive MoS2 to emit light on a large scale without using monolayer MoS2 and vertical p每n junctions, indicating great potential for future 2D optoelectronics and photonics applications
%U https://pubs.acs.org/doi/10.1021/acsami.8b13784