Please use this identifier to cite or link to this item: https://doi.org/10.1149/1.3615822
Title: Synthesis of three-dimensional tungsten oxide cactus-shaped nanostructures supported on carbon nanotubes template
Authors: Yu, J.
Choo, K.H.
Niu, L. 
Chua, D.H.C. 
Issue Date: 2011
Citation: Yu, J., Choo, K.H., Niu, L., Chua, D.H.C. (2011). Synthesis of three-dimensional tungsten oxide cactus-shaped nanostructures supported on carbon nanotubes template. Electrochemical and Solid-State Letters 14 (10) : K58-K61. ScholarBank@NUS Repository. https://doi.org/10.1149/1.3615822
Abstract: We report that three-dimensional cactus-shaped tungsten oxide WO x (x = 2-3) nanostructures have been synthesized over a large area using a simple one-step metal-organic chemical vapor deposition (MOCVD) technique at unusually lower temperatures than previously reported, making use of vertically aligned carbon nanotubes (CNTs) as the base template in a core-shell configuration. Each WO3 crystallite forms independently perpendicular to the CNT spine resulting in the cactus-like structures. The presence of these structures has been shown to lead to improved electron emission properties, where the turn-on field was lowered from pristine CNTs at 3.47-2.31 V μm-1 with an increase in the field enhancement factor from ∼1225 to ∼3985. The growth mechanism of the nanostructures is discussed. © 2011 The Electrochemical Society.
Source Title: Electrochemical and Solid-State Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/86768
ISSN: 10990062
DOI: 10.1149/1.3615822
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