Electrical and optical properties of thin films consisting of tin-doped indium oxide nanoparticles

J. Ederth, P. Johnsson, G. A. Niklasson, A. Hoel, A. Hultåker, P. Heszler, C. G. Granqvist, A. R. Van Doorn, M. J. Jongerius, D. Burgard

Research output: Contribution to journalArticle

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Abstract

Electrical transport and optical properties were investigated in porous thin films consisting of In2O3:Sn (indium tin oxide, ITO) nanoparticles with an initial crystallite size of ∼16 nm and a narrow size distribution. Temperature dependent resistivity was measured in the 77A≤1073 K range. Samples annealed at 573≤t A≤923 K exhibited a semiconducting behavior with a negative temperature coefficient of the resistivity (TCR). These data were successfully fitted to a fluctuation induced tunneling model, indicating that the samples comprised large conducting clusters of nanoparticles separated by insulating barriers. Samples annealed at tA = 1073 K displayed a metallic behavior with no signs of insulating barriers; then the TCR was positive at t> 130 K and negative at t-4 Ω cm, which is comparable to the resistivity of dense high quality In2O3:Sn films. Particulate samples with a luminous transmittance exceeding 90% and a resistivity of ∼10-2 Ω cm were obtained.

Original languageEnglish
Article number155410
Pages (from-to)1554101-15541010
Number of pages13986910
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume68
Issue number15
Publication statusPublished - Oct 2003

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Tin
indium oxides
Indium
tin
Electric properties
Optical properties
electrical properties
Nanoparticles
Negative temperature coefficient
optical properties
Thin films
nanoparticles
electrical resistivity
Oxides
Crystallite size
thin films
Tin oxides
Transport properties
Temperature
coefficients

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Ederth, J., Johnsson, P., Niklasson, G. A., Hoel, A., Hultåker, A., Heszler, P., ... Burgard, D. (2003). Electrical and optical properties of thin films consisting of tin-doped indium oxide nanoparticles. Physical Review B - Condensed Matter and Materials Physics, 68(15), 1554101-15541010. [155410].

Electrical and optical properties of thin films consisting of tin-doped indium oxide nanoparticles. / Ederth, J.; Johnsson, P.; Niklasson, G. A.; Hoel, A.; Hultåker, A.; Heszler, P.; Granqvist, C. G.; Van Doorn, A. R.; Jongerius, M. J.; Burgard, D.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 68, No. 15, 155410, 10.2003, p. 1554101-15541010.

Research output: Contribution to journalArticle

Ederth, J, Johnsson, P, Niklasson, GA, Hoel, A, Hultåker, A, Heszler, P, Granqvist, CG, Van Doorn, AR, Jongerius, MJ & Burgard, D 2003, 'Electrical and optical properties of thin films consisting of tin-doped indium oxide nanoparticles', Physical Review B - Condensed Matter and Materials Physics, vol. 68, no. 15, 155410, pp. 1554101-15541010.
Ederth, J. ; Johnsson, P. ; Niklasson, G. A. ; Hoel, A. ; Hultåker, A. ; Heszler, P. ; Granqvist, C. G. ; Van Doorn, A. R. ; Jongerius, M. J. ; Burgard, D. / Electrical and optical properties of thin films consisting of tin-doped indium oxide nanoparticles. In: Physical Review B - Condensed Matter and Materials Physics. 2003 ; Vol. 68, No. 15. pp. 1554101-15541010.
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