Preparation of transparent conductive indium tin oxide thin films from nanocrystalline indium tin hydroxide by dip-coating method

L. Kõrösi, Szilvia Papp, I. Dékány

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Indium tin oxide (ITO) thin films with well-controlled layer thickness were produced by dip-coating method. The ITO was synthesized by a sol-gel technique involving the use of aqueous InCl3, SnCl4 and NH 3 solutions. To obtain stable sols for thin film preparation, as-prepared Sn-doped indium hydroxide was dialyzed, aged, and dispersed in ethanol. Polyvinylpyrrolidone (PVP) was applied to enhance the stability of the resulting ethanolic sols. The transparent, conductive ITO films on glass substrates were characterized by X-ray diffraction, scanning electron microscopy and UV-Vis spectroscopy. The ITO layer thickness increased linearly during the dipping cycles, which permits excellent controllability of the film thickness in the range ∼ 40-1160 nm. After calcination at 550 °C, the initial indium tin hydroxide films were transformed completely to nanocrystalline ITO with cubic and rhombohedral structure. The effects of PVP on the optical, morphological and electrical properties of ITO are discussed.

Original languageEnglish
Pages (from-to)3113-3118
Number of pages6
JournalThin Solid Films
Volume519
Issue number10
DOIs
Publication statusPublished - Mar 1 2011

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Indium
Tin
Tin oxides
indium oxides
tin oxides
hydroxides
Oxide films
indium
coating
tin
Thin films
Coatings
preparation
thin films
Povidone
Polymethyl Methacrylate
Sols
Film preparation
controllability
Controllability

Keywords

  • Calcination
  • Fourier transform infrared spectroscopy
  • Indium tin oxide
  • Particle size distribution
  • Sheet resistance
  • Sol-gel deposition
  • Surface morphology

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Metals and Alloys
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

Preparation of transparent conductive indium tin oxide thin films from nanocrystalline indium tin hydroxide by dip-coating method. / Kõrösi, L.; Papp, Szilvia; Dékány, I.

In: Thin Solid Films, Vol. 519, No. 10, 01.03.2011, p. 3113-3118.

Research output: Contribution to journalArticle

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