A hydrothermally synthesized MoS2(1-Se2 alloy with deep-shallow level conversion for enhanced performance of
Kaiqiang Hou1, Zongyu Huang1, Shengqian Liu1
1Hunan Key Laboratory of Micro-Nano Energy Materials and Devices, Laboratory for Quantum Engineering and Micro-Nano Energy Technology, School of Physics and Optoelectronic, Xiangtan University Hunan 411105 P. R. China zyhuang@xtu.edu.cn xqi@xtu.edu.cn.
Abstract:
Photoelectric detectors based on binary transition metal chalcogenides have attracted widespread attention in recent years. However, due to the high-temperature synthesis of binary TMD, high-density deep-level defect states may be generated, leading to poor responsiveness or a long response time. Besides, the addition of an alloy will change the DLDSs from deep to shallow energy levels caused by S vacancies. In this paper, MoS2(1-Se2 nanostructures were synthesized by a hydrothermal method, and a novel type of photodetector was fabricated by using the synthesized material as a light sensitive material. The MoSSe-based photodetector not only has a high photocurrent, but also exhibits a wide spectral response in the range of 405 nm to 808 nm. At the same time, it can achieve a responsivity of 1.753 mA W-1 under 660 nm laser irradiation of 1.75 mW mm-2. Therefore, this work can be considered as a method of constructing a new type of photodetector with a simple process and low cost.
More Related Videos
05:47Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts
Published on: August 7, 2018
09:09A Facile Synthetic Method to Obtain Bismuth Oxyiodide Microspheres Highly Functional for the Photocatalytic Processes of Water Depuration
Published on: March 29, 2019