Title

Photoluminescence and wetting behavior of ZnO nanoparticles/nanorods array synthesized by thermal evaporation

Authors

Authors

Q. Li; Y. Q. Chen; L. B. Luo; L. Wang; Y. Q. Yu;L. Zhai

Comments

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Abbreviated Journal Title

J. Alloy. Compd.

Keywords

ZnO nanostructures; Thermal evaporation; Morphology; Photoluminescence; Wetting behavior; SUPERHYDROPHOBIC SURFACES; SOLAR-CELLS; LOW-TEMPERATURE; ZINC OXIDE; NANOSTRUCTURES; EMISSION; FILMS; WATER; HYDROPHOBICITY; PERFORMANCE; Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy &; Metallurgical Engineering

Abstract

By controlling the deposition rate of Zn atoms, we simultaneously synthesized ZnO particles on the upper surface of a horizontal silicon substrate, and ZnO rods array on its lower surface via a thermal evaporation process. The deposition rate of Zn atoms not only affects the morphologies of the final ZnO products, but also consequently leads to ZnO particles and ZnO rods array that have different photoluminescence properties and wetting behaviors. These two morphological ZnO products have just opposite relative intensities of UV emission to visible emission. ZnO rods array has a water contact angle of 160.3 degrees, while ZnO particles film has a water contact angle of 150.4 degrees, and their wetting behavior changed from the Cassie state to the Wenzel state during the process of droplet evaporation. (C) 2013 Elsevier B.V. All rights reserved.

Journal Title

Journal of Alloys and Compounds

Volume

560

Publication Date

1-1-2013

Document Type

Article

Language

English

First Page

156

Last Page

160

WOS Identifier

WOS:000316681600025

ISSN

0925-8388

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