Tunable synthesis of ordered Zinc Oxide nanoflower-like arrays

Xie, F., Centeno, A. , Zou, B., Ryan, M. P., Riley, D. J. and Alford, N. M. (2013) Tunable synthesis of ordered Zinc Oxide nanoflower-like arrays. Journal of Colloid and Interface Science, 395, pp. 85-90. (doi: 10.1016/j.jcis.2012.12.028)

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A novel approach to fabricate an ordered array of ZnO nanoflowers, consisting of uniform polymer cores of 100s of nanometer diameter decorated with ZnO nanorods of 10s of nanometer diameter, is presented. The 2-stage method combines the formation of ZnO seed layer by pulsed laser deposition (PLD) onto a colloidally assembled polystyrene sphere monolayer and the subsequent hydrothermal growth of ZnO nanowires (NWs). The main advantages of this methodology are low cost and the large area scalability of perfectly ordered hierarchical structures. More importantly, the process enables a versatile control of dimensions and morphologies of ZnO NWs as well as control of the core diameter by changing the polystyrene sphere diameter. A strong improvement of light scattering by such arrays is observed, offering promise as building blocks in different types of solar cells and potentially useful for a wide variety of applications in optoelectronic devices.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Centeno, Dr Anthony
Authors: Xie, F., Centeno, A., Zou, B., Ryan, M. P., Riley, D. J., and Alford, N. M.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:Journal of Colloid and Interface Science
ISSN (Online):1095-7103
Published Online:11 January 2013

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