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Vapour phase synthesis of aligned molybdenum oxide nanowires at low temperature
Author(s) -
Hong Kunquan,
An Ming,
Song Rui,
Liu Liqing,
Xu Mingxiang
Publication year - 2012
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201105451
Subject(s) - nanowire , molybdenum , materials science , field electron emission , substrate (aquarium) , evaporation , oxide , phase (matter) , nanotechnology , molybdenum oxide , catalysis , chemical engineering , electron , chemistry , metallurgy , physics , biochemistry , oceanography , organic chemistry , quantum mechanics , geology , engineering , thermodynamics
Quasi‐aligned molybdenum oxide nanowires are synthesized on silicon substrate by a thermal evaporation method, at a low temperature of 550 °C without using any catalyst. The diameter of these nanowires is about 100 nm, with steps in the top to form a sharp tip. The field emission measurement shows that these nanowires have strong electron field emission abilities, with high field enhancement factor and a relatively low turn‐on field of 2.16 V µm –1 , suggesting that these molybdenum oxide nanowire arrays might be promising candidates as field emitters.SEM images of the molybdenum oxide nanowires: (a) top view and (b) cross‐sectional view. (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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