Dependence of Electrical Properties on Thermal Temperature in Nanocrystalling SnO2 Thin Films

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

1 Scopus Citations
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Author(s)

  • Juan Du
  • HaiJiao Zhang
  • Zheng Jiao
  • Minghong Wu
  • Zhiwen Chen

Detail(s)

Original languageEnglish
Pages (from-to)10659-10663
Journal / PublicationJournal of Nanoscience and Nanotechnology
Volume11
Issue number12
Publication statusPublished - Dec 2011

Abstract

Nanocrystalline SnO2 thin films were prepared by pulsed laser deposition techniques on clean glass substrates, and the films were then annealed for 30 min from 50 to 550 degrees C with a step of 50 degrees C, respectively. The investigation of X-ray diffraction confirmed that the various SnO2 thin films were consisted of nanoparticles with average grain size in the range of 23.7-28.9 nm. Root-mean-square surface roughness of the as-prepared SnO2 thin film was measured to be 25.6 nm which decreases to 16.2 nm with thermal annealing. Electrical resistivity and refractive index were measured as a function of annealing temperature, and found to lie between 1.24 to 1.45 m Omega-cm, and 1.502 to 1.349, respectively. The results indicate that nearly opposite actions to root-mean-square surface roughness and electrical resistivity make a unique performance with thermal annealing temperature. The post annealing shows greater tendency to affect the structural and electrical properties of SnO2 thin films which composed of nanoparticles.

Research Area(s)

  • Nanocrystalline SnO2 Thin Films, Pulsed Laser Deposition, Thermal Annealing, X-Ray Diffraction, Root-Mean-Square Roughness, Electrical Resistivity

Citation Format(s)

Dependence of Electrical Properties on Thermal Temperature in Nanocrystalling SnO2 Thin Films. / Du, Juan; Zhang, HaiJiao; Jiao, Zheng; Wu, Minghong; Shek, Chan-Hung; Wu, C. M. Lawrence; Lai, Joseph K. L.; Chen, Zhiwen.

In: Journal of Nanoscience and Nanotechnology, Vol. 11, No. 12, 12.2011, p. 10659-10663.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review