Electrical, structural and optical properties of SnO2 thin films prepared by spray pyrolysis

Serin T., Serin N., Karadeniz S., Sari H., Tugluoglu N., Pakma O.

JOURNAL OF NON-CRYSTALLINE SOLIDS, cilt.352, sa.3, ss.209-215, 2006 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 352 Sayı: 3
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1016/j.jnoncrysol.2005.11.031
  • Dergi Adı: JOURNAL OF NON-CRYSTALLINE SOLIDS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.209-215
  • Anahtar Kelimeler: X-ray diffraction, electrical and electronic properties, films and coatings, FTIR measurements, tin oxide, TIN OXIDE-FILMS, GAS-SENSING PROPERTIES, CONDUCTION
  • Ankara Üniversitesi Adresli: Hayır

Özet

This study investigated the effect of the substrate temperature on the structural, optical, morphological, and electrical properties of undoped SnO2 films prepared by a spray deposition method. The films were deposited at various substrate temperatures ranging from 300-500 degrees C in steps of 50 degrees C and characterized by different optical and structural techniques. X-ray diffraction studies showed that the crystallite size and preferential growth directions of the films were dependent on the substrate temperature. These studies also indicated that the films were amorphous at 300 degrees C and polycrystalline at the other substrate temperatures used. Infrared and visible spectroscopic studies revealed that a strong vibration band, characteristic of the SnO2 stretching mode, was present around 630 cm(-1) and that the optical transmittance in the visible region varied over the range 75-95% with substrate temperature, respectively. The films deposited at 400 degrees C exhibited the highest electrical conductivity property. (c) 2005 Elsevier B.V. All rights reserved.