Synthesis of the few layered two-dimensional molybdenum oxide atomic crystal

1st International Conference on New Material and Chemical Industry

材料科学;化学工业

Wang, Yu^1 ; He, Ruihui^1 ; Su, Mingze^1 ; Xie, Weiguang^1

Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, Guangdong, China^1

关键词: Atomic crystals;    Catalyst-free;    Length scale;    Low costs;    Physical vapour deposition;    Source temperature;    Substrate positions;    Substrate types;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/167/1/012020/pdf
DOI  :  10.1088/1757-899X/167/1/012020

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

We study the effect of substrate type, source temperature, and substrate position on the morphology of Alfa molybdenum oxide (α-MoO3) in physical vapour deposition. We found that the orientation and thickness of the MoO3is strongly affected by the evaporated flow and temperature. Lying down, few layered (FL) MoO3can be grown directly on technical substrate such as SiO2with typical length scale of tens of micrometres. Our studies provide a simple, catalyst-free and low cost synthesis way to prepared large size FL MoO3for further optical and electrical investigation such as photodetector, field effect transistors, and electrochromism.