Synthesis and characterisations of Au-nanoparticle-doped TiO2 and CdO thin films

GÜLTEKİN A., Karanfil G., Ozel F., Kus M., Say R., SÖNMEZOĞLU S.

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, cilt.75, sa.6, ss.775-781, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 75 Sayı: 6
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.jpcs.2014.01.011
  • Dergi Adı: JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.775-781
  • Anahtar Kelimeler: Thin films, Sol-gel growth, Microstructure, Optical properties, Surface properties, SOL-GEL PROCESS, SPRAY-PYROLYSIS, OPTICAL-PROPERTIES, ANNEALING TEMPERATURE, STRUCTURAL-PROPERTIES, PHYSICAL-PROPERTIES, GRAIN-SIZE, DEPOSITION, CONSTANTS, GROWTH
  • Anadolu Üniversitesi Adresli: Evet

Özet

In the present study, pure and gold nanoparticle (Au NP)-doped titanium dioxide (TiO2) and cadmium oxide (CdO) thin film were prepared by the sal-gel method, and the effect of Au NP doping on the optical, structural and morphological properties of these thin films was investigated. The prepared thin films were characterised by X-ray diffraction (XRD), scanning electron microscopy (SEM) and ultraviolet-visible-near infrared (UV-Vis-NIR) spectra. While the optical band increases from 3.62 to 3.73 for TiO2 thin films, it decreases from 2.20 to 1.55 for CdO thin films with increasing Au doping concentration. Analysis of XRD indicates that the intensities of peaks of the crystalline phase have increased with the increasing Au NP concentrations in all thin films. SEM images demonstrate that the surface morphologies of the samples were affected by the incorporation of Au NPs. Consequently, the most significant results of the present study are that the Au NPs can be used to modify the optical, structural and morphological properties of TiO2 and CdO thin films. (C) 2014 Elsevier Ltd. All rights reserved.