The effect of spin coating rate on morphology and optical properties of cuprous oxide thin film prepared by sol-gel techniqeu

D. S C Halin, I. A. Talib, A. R. Daud, Muhammad Azmi Abdul Hamid

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Cuprous oxide thin films were successfully grown on indium tin oxide (ITO) coated glass by sol-gel spin coating using diethanolamine (DEA) as a solubility agent. The films were annealed at 350 °C in 5% H2 + 95% N 2 atmosphere. The films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and ultraviolet-visible (UV-vis) spectroscopy. The effect of spinning rate on deposition on the microstructure, thickness and optical properties of cuprous oxide films was investigated. Based on the SEM micrographs of the as obtained films, we found that the grain size decreases with the increase in spinning rate. At the rate of 6000 rpm, the film shows better coverage with the rounded shape grain size is about 45 nm. Optical absorbance of the films was in the regions of 400-800 nm wavelengths. The optical band gap values of the films are in the range of 2.0-2.2 eV.

Original languageEnglish
Pages (from-to)41-45
Number of pages5
JournalJournal of the Australian Ceramic Society
Volume46
Issue number1
Publication statusPublished - 2010

Fingerprint

Spin coating
Oxide films
Sol-gels
Optical properties
Thin films
diethanolamine
Scanning electron microscopy
Ultraviolet visible spectroscopy
Optical band gaps
Tin oxides
Indium
cuprous oxide
Solubility
X ray diffraction
Glass
Wavelength
Microstructure

Keywords

  • Cuprous oxide
  • Energy band gap
  • Sol-gel
  • Solar cell
  • Thin films

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Cite this

The effect of spin coating rate on morphology and optical properties of cuprous oxide thin film prepared by sol-gel techniqeu. / Halin, D. S C; Talib, I. A.; Daud, A. R.; Abdul Hamid, Muhammad Azmi.

In: Journal of the Australian Ceramic Society, Vol. 46, No. 1, 2010, p. 41-45.

Research output: Contribution to journalArticle

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