Low-temperature Synthesis of Large-area Films of Molybdenum Trioxide Microbelts in Air and the Dependence of Their Field Emission Performance on Growth Conditions

A simple method is introduced for the preparation of large-area films of molybdenum trioxide （MoO3） microbelts. It is found that such films can be grown on indium tin oxide （ITO） glasses or silicon substrates at low temperatures by thermal evaporation deposition in air without using catalyst. Field...

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Bibliographic Details
Published in:Journal of materials science & technology 2010-07, Vol.26 (7), p.584-588
Main Authors: Ban, Dongmei, Xu, Ningsheng, Deng, Shaozhi, Chen, Jun, She, Juncong
Format: Article
Language:English
Subjects:
Catalysts
Cold cathodes
Current density
Deposition
Evaporation
Field emission
Glass
Indium tin oxide
Large-area film
Microorganisms
Microstructures and synthesis
Molybdenum trioxide
Silicon substrates
Synthesis
三氧化钼薄膜
低温合成
制备工艺
场发射性能
生长状况
铟锡氧化物
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Summary:A simple method is introduced for the preparation of large-area films of molybdenum trioxide （MoO3） microbelts. It is found that such films can be grown on indium tin oxide （ITO） glasses or silicon substrates at low temperatures by thermal evaporation deposition in air without using catalyst. Field emission measurements show that the turn-on field of the MoO3 microbelts is as low as 2.2 V/μm required to obtain a current density of 10 μA/cm^2, The combination of the simplicity of the growth method and the attractive field emission performance makes it a potential low-cost technique for the preparation of large-area field emission cold cathode material.
ISSN:1005-0302
1941-1162
DOI:10.1016/S1005-0302(10)60089-8