The structural and optical properties of γ-FeOOH thin film grownwith CBD method

Özdemir O., Meydaneri F., KARİPER İ. A.

Optoelectronics and Advanced Materials, Rapid Communications, vol.8, no.7-8, pp.727-732, 2014 (SCI-Expanded, Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 8 Issue: 7-8
  • Publication Date: 2014
  • Journal Name: Optoelectronics and Advanced Materials, Rapid Communications
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.727-732
  • Keywords: CBD method, Crystal growth, Microstructure, Optical properties, pH
  • Erciyes University Affiliated: Yes

Abstract

© 2014, National Institute of Optoelectronics. All right reserved.γ-FeOOH thin films were produced by Chemical Bath Deposition (CBD) method at pH: 5 onto amorphous glass substrates. Structural properties of γ-FeOOH thin film were analyzed with X-ray diffraction (XRD). Chemical analysis and surface image of thin film were investigated with EDX, SEM, respectively. Optical properties were investigated via UV-VIS spectrophotometer. γ-FeOOH (lepidocrocite) crystal is orthorhombic structure and the XRD peak corresponding to the γ-FeOOH is enhanced to (1 1 1) plane. The allowed direct and allowed indirect optical band gaps (Eg), optical transmission (T%), reflectivity (R%), absorption, refraction index (n), extinction coefficient (k), dielectric constant (ɛ) of the thin film were found to be 2.00 and 1.63 eV, 36.39%, 24.86%, 0.43, 2.98, 0.03 and 1.76, respectively.