化学气相沉积
材料科学
纳米线
外延
亚氧化物
沉积(地质)
纳米技术
电阻率和电导率
壳体(结构)
原子层沉积
硫黄
氧化物
化学工程
图层(电子)
复合材料
冶金
古生物学
工程类
电气工程
生物
沉积物
作者
Manami Goto,Ichirō Yamane,Shoki Arasawa,Takashi Yanase,Seiya Yokokura,Taro Nagahama,Yu‐Lun Chueh,Yong-Jun Shin,Yongmin Kim,Toshihiro Shimada
出处
期刊:ACS omega
[American Chemical Society]
日期:2022-10-21
卷期号:7 (43): 39362-39369
被引量:2
标识
DOI:10.1021/acsomega.2c05586
摘要
MoO2 nanowires (NWs), MoO2/MoS2 core-shell NWs, and MoS2 nanotubes (NTs) were synthesized by the turbulent flow chemical vapor deposition of MoO2 using MoO3, followed by sulfurization in the sulfur gas flow. The involvement of MoO x suboxide is suggested by density functional theory (DFT) calculations of the surface energies of MoO2. The thickness of the MoS2 layers can be controlled by precise tuning of sulfur vapor flow and temperatures. MoS2 had an armchair-type winding topology due to the epitaxial relation with the MoO2 NW surface. A single ∼ few-layer MoO2/MoS2 core-shell structure showed photoluminescence after the treatment with a superacid. The resistivities of an individual MoO2 NW and a MoS2 NT were measured, and they showed metallic and semiconducting resistivity-temperature relationships, respectively.
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