Fabrication and optical characterization of vanadium oxide nano-particulates thin film

Sakae Tanemura, L. Miao, Y. Kajino, Y. Itano, M. Tanemura, S. Toh, K. Kaneko, Y. Mori

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We have succeeded to fabricate the thin films (350 nm in total thickness) consisting of semiconducting Vanadium-oxide (VO 0.9+x (0.30 ≤ x < 0.37)) nano-particles with 3.47 nm in averaged diameter by using the combined magnetron sputtering and gas aggregation methods. The optical band gap of the film is evaluated as 3.88 eV under the ad hoc assumption of direct allowed optical transition mode by spectroscopic ellipsometry. This value is expanded by 0.18 eV comparing with the estimated VO bulk value. The widening of band gap might be due to the lattice strain and/or the quantum confinement effect of the composed nano-particles.

Original languageEnglish
Pages (from-to)43-46
Number of pages4
JournalJournal of Materials Science: Materials in Electronics
Volume18
Issue numberSUPPL. 1
DOIs
Publication statusPublished - 2007 Oct
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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