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

27 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

Fingerprint

Nanocrystals
nanocrystals
Thin films
thin films
Oxides
Vacuum
Vanadium
vacuum
vanadium oxides
hexagons
Electron microscopy
electron microscopy
Phase transitions
Single crystals
Temperature
oxides
Hot Temperature
vanadium pentoxide
single crystals
room temperature

All Science Journal Classification (ASJC) codes

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

Cite this

Formation of V2O3 nanocrystals by thermal reduction of V2O5 thin films. / Ramana, C. V.; Utsunomiya, Satoshi; Ewing, R. C.; Becker, U.

In: Solid State Communications, Vol. 137, No. 12, 01.03.2006, p. 645-649.

Research output: Contribution to journalArticle

Ramana, C. V. ; Utsunomiya, Satoshi ; Ewing, R. C. ; Becker, U. / Formation of V2O3 nanocrystals by thermal reduction of V2O5 thin films. In: Solid State Communications. 2006 ; Vol. 137, No. 12. pp. 645-649.
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