Please use this identifier to cite or link to this item:
Title: WO3-x nanorods synthesized on a thermal hot plate
Authors: Cheong, F.C. 
Varghese, B. 
Zhu, Y. 
Tan, E.P.S. 
Dai, L. 
Tan, V.B.C. 
Lim, C.T. 
Sow, C.H. 
Issue Date: 22-Nov-2007
Source: Cheong, F.C., Varghese, B., Zhu, Y., Tan, E.P.S., Dai, L., Tan, V.B.C., Lim, C.T., Sow, C.H. (2007-11-22). WO3-x nanorods synthesized on a thermal hot plate. Journal of Physical Chemistry C 111 (46) : 17193-17199. ScholarBank@NUS Repository.
Abstract: A simple thermal vapor deposition technique to synthesize crystalline tungsten oxide nanorods in ambient condition is presented. Using a commercial thermal hot plate, a pure 99.9% tungsten foil is heated at 485 ± 5°C under ambient conditions with a piece of 150 μm thick glass cover slide pressing on the tungsten foil. Single crystalline WO3-x nanorods, with a preferential growth axis in the [001] direction, are found to deposit on the cover slide facing the heated tungsten foil. The structure, morphology, and composition of the WO3-x nanorods were characterized using the scanning electron microscopy, transmission electron microscopy, energy dispersive spectrometry, Raman spectroscopy, and X-ray diffraction. In addition, mechanical properties of the as-synthesized nanorods were investigated by employing the three-point bend test using an atomic force microscope. The elastic modulus of the nanorods was found to be in the 10-110 GPa range, and it increases with decreasing diameter of the nanorods. The tungsten oxide nanorod was also found to be a good field emitter with a field enhancement factor estimated to be 9.8 × 104 cm-1. © 2007 American Chemical Society.
Source Title: Journal of Physical Chemistry C
ISSN: 19327447
DOI: 10.1021/jp074569z
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Mar 8, 2018


checked on Feb 6, 2018

Page view(s)

checked on Mar 12, 2018

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.