Structural and optical characterisation of undoped and chromium doped tin oxide prepared by sol-gel method

Noor Baa`Yah Ibrahim, M. H. Abdi, M. H. Abdullah, H. Baqiah

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Transparent semiconductor thin films, Cr doped SnO2 (Sn 1-xCrxO2: x = 0.0, 0.02, 0.04, 0.06, 0.10, 0.20) were deposited onto glass substrates by a sol-gel method. The thermal gravitational analysis showed that mass lost happened at 120 °C due to evaporation of water and ethanol. X-ray diffraction analysis showed that the Cr doped SnO2 were polycrystalline with SnO2 phases. The crystalline sizes were in the range of 3.7-4.9 nm. The optical property measured using UV-Vis spectrophotometer showed that the transparency of all samples was more than 90% and the calculated band gaps were in the range of 3.84-3.96 eV which was due to the Cr dopant that increased the samples energy band gap.

Original languageEnglish
Pages (from-to)260-264
Number of pages5
JournalApplied Surface Science
Volume271
DOIs
Publication statusPublished - 15 Apr 2013

Fingerprint

Chromium
Tin oxides
Sol-gel process
Energy gap
Ultraviolet spectrophotometers
Band structure
Transparency
X ray diffraction analysis
Evaporation
Ethanol
Optical properties
Doping (additives)
Semiconductor materials
Crystalline materials
Glass
Thin films
Water
Substrates
stannic oxide
Hot Temperature

Keywords

  • Cr doped SnO
  • Energy gap
  • Sol-gel
  • Thin films

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

Cite this

Structural and optical characterisation of undoped and chromium doped tin oxide prepared by sol-gel method. / Ibrahim, Noor Baa`Yah; Abdi, M. H.; Abdullah, M. H.; Baqiah, H.

In: Applied Surface Science, Vol. 271, 15.04.2013, p. 260-264.

Research output: Contribution to journalArticle

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