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Issue 29, 2013
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Effect of substrate pre-treatment on controllable synthesis of hexagonal WO3 nanorod arrays and their electrochromic properties

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Abstract

Hexagonal WO3 nanostructures with controlled sizes and alignment ordering have been successfully realized on fluorine doped tin oxide (FTO) substrates with different pre-treatment methods by a hydrothermal approach. The effects of the pre-treatment conditions, such as pre-coating a layer of WO3 nanoparticles, the annealing temperature and time and the colloid concentration, on the orientation and morphology of the WO3 nanorods were systematically investigated by scanning electron microscopy and X-ray diffraction. The WO3 nanorod arrays (WNRs) vertical to the FTO substrate and spindle-like nanorod bundles parallel to the FTO substrate can be selectively prepared depending on the crystallinity and the density of the WO3 seeds pre-coated on the FTO substrates. Moreover, the influence of the as-prepared WO3 morphology on its electrochromic (EC) property was also discussed.

Graphical abstract: Effect of substrate pre-treatment on controllable synthesis of hexagonal WO3 nanorod arrays and their electrochromic properties

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Publication details

The article was received on 20 Mar 2013, accepted on 16 May 2013 and first published on 20 May 2013


Article type: Paper
DOI: 10.1039/C3CE40494C
Citation: CrystEngComm, 2013,15, 5828-5837
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    Effect of substrate pre-treatment on controllable synthesis of hexagonal WO3 nanorod arrays and their electrochromic properties

    F. Zheng, H. Lu, M. Guo and M. Zhang, CrystEngComm, 2013, 15, 5828
    DOI: 10.1039/C3CE40494C

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