Growth of large-area aligned molybdenum nanowires by high temperature chemical vapor deposition: synthesis, growth mechanism, and device application.
Large-area aligned Mo nanowires have been grown on stainless steel substrates by high-temperature chemical vapor deposition with the use of Mo metal. The detailed physical and chemical growth processes regarding the formation of the nanowires have been investigated using mass spectroscopy, thermogravimetry, and differential scanning calorimetry analysis, as well as structure analysis by electron microscopy. In reference to Gibbs energy calculation, our study reveals that the growth relies on the decomposition of MoO2 vapors through condensation of its vapor at high substrate temperatures. The aligned growth is a result of competing growth with the nanowires normal to the substrate surface reaching the final growth front. The field emission measurement and the vacuum luminescent tube study show that the Mo nanowires have potential application as electron emitters.
Zhou
Jun
J
State Key Lab of Optoelectronic Materials and Technologies, and Guangdong Province Key Laboratory of Display Materials and Technologies, School of Physics and Engineering, SunYat-Sen (Zhongshan) University, Guangzhou, 510275, China.
Deng
Shaozhi
S
Gong
Li
L
Ding
Yong
Y
Chen
Jian
J
Huang
Jianxing
J
Chen
Jun
J
Xu
Ningsheng
N
Wang
Zhong Lin
ZL