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Enhancement in optical transmission of ZnO: Al film by c-orientation arrayed growth

  • H. Y. He and H. Y. Yu
Published/Copyright: June 11, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 102 Issue 5

Abstract

Al-substituted ZnO film is an excellent transparent conducting material. In this paper, we report the fabrication and optical properties of the anisotropic oriented arrayed Al-substituted ZnO films. The films were prepared on quartz glass substrate with the sol-gel method and different calcining schedules. X-ray diffraction, atomic force microscopy, UVvis spectrophotometry and luminescent spectrophotometry were used to characterize the films. Pre-annealing at 400°C and annealing of 700°C led to a weak (002)-oriented texture with a granular morphology. Rapid heating and annealing at 700°C led to a highly (0002)-oriented texture with a morphology of strip grains running parallel to the substrate surface. Clear optical anisotropy was observed in the films. The highly (0002)-oriented film has greater transmittance in the range of UV-visible light and a wider band gap. The mechanisms of formation and the anisotropic optical properties of the films are discussed.

Keywords: ZnO: Al film; Orientation; Optical anisotropy; Transmittance; Band gap
* Correspondence address, H. Y. He Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry, Ministry of Education Shaanxi University of Science and Technology, China Tel.: +86 153 1945 3608 Fax: +86 029 8616 8603 E-mail:

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Received: 2009-9-29
Accepted: 2010-9-1
Published Online: 2013-06-11
Published in Print: 2011-05-01

© 2011, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.110414
Keywords for this article
ZnO: Al film; Orientation; Optical anisotropy; Transmittance; Band gap

Articles in the same Issue

  1. Original Contributions
  2. Alloying effect on microstructure and mechanical properties of thermomechanically processed Ni3(Si,Ti) alloys
  3. Contents
  4. Contents
  5. Original Contributions
  6. Neuro-finite element application in material characterization using small punch test
  7. Multi-phase biocomposite material in-situ fabricated by using hydroxyapatite and amorphous nanosilica
  8. Particularities of the formations of bainite and martensite/austenite phase in low carbon low alloy steels during continuous cooling
  9. Texture analysis of polymer modified bitumen images
  10. Influence of nitridation time on microstructure, morphology and optical properties of GaN nanowires by nitridizing Ga2O3/Cr thin films
  11. Deformation behaviour of freestanding single-crystalline Ni3Al-based nanoparticles
  12. Precipitation strengthening in high manganese austenitic TWIP steels
  13. Effects of pre-deformation and subsequent low-temperature annealing on transformation, mechanical properties and shape memory behavior of a Ti-rich TiNi alloy
  14. Enhancement in optical transmission of ZnO: Al film by c-orientation arrayed growth
  15. Physical and mechanical behavior of high strength self-compacting concrete containing ZrO2 nanoparticles
  16. Experimental and numerical studies of metallic powders subjected to cold isostatic pressing
  17. Consumption of Cu pad during multiple reflows of Ni-doped SnAgCu solder
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