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Two-dimensional ZnO–NiO macroporous arrays: Fabrication, structure and electrical properties
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- Authors
- Jaehyun Moon, Jong-Sook Lee, Jin-Ah Park, Su-Jae Lee, Taehyoung Zyung
- Issue Date
- 2010-09
- Citation
- Electrochimica Acta, v.55, no.22, pp.6849-6856
- ISSN
- 0013-4686
- Publisher
- Elsevier
- Language
- English
- Type
- Journal Article
- Abstract
- Colloidal templating and pulsed laser deposition were combined to fabricate arrays of ordered two-dimensional macroporous ZnO-NiO thin films. The underlying principles involved in the formation of colloidal templates were investigated using Fourier transformations and radial distribution functions. The macroporous thin film consists of hollow half-spheres of nanocrystalline wurtzite ZnO and rock salt NiO. The electrical properties of macroporous ZnO-NiO thin films were investigated by impedance and DC current-voltage measurements. The electrical properties are controlled by the interfaces between oxide grains. The potential applications such as gas sensors and optics are discussed. © 2010 Elsevier Ltd. All rights reserved.
- KSP Keywords
- Colloidal templates, Colloidal templating, Current-Voltage measurements, DC current, Electrical properties, NiO thin films, Potential applications, Pulsed-laser deposition(PLD), Radial distribution function, Rock salt, Wurtzite ZnO