Formation of V2O3 nanocrystals by thermal reduction of V2O5 thin films

C. V. Ramana, Satoshi Utsunomiya, R. C. Ewing, U. Becker

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

We report the formation of homogeneous and stable V2O 3 nanocrystals, directly from V2O5 thin films, at 600 °C, as observed by using in situ electron microscopy experiments. Thermally-induced reduction of V2O5 thin films in vacuum is remarkably different when compared to reduction of V2O 5 single crystals and results in the formation of nanophase V 2O3. Thermally grown V2O3 nanocrystals exhibit hexagon or square shape and are stable at higher temperature as well as room temperature. The formation of stable nanocrystals through the reduction process in a non-chemical environment (vacuum) could provide a basis for understanding the complex processes of vanadium oxide phase transitions and for controlling the chemical processes to produce oxide nanocrystals.

Original languageEnglish
Pages (from-to)645-649
Number of pages5
JournalSolid State Communications
Volume137
Issue number12
DOIs
Publication statusPublished - Mar 1 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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