Growth and structure analysis of tungsten oxide nanorods using environmental TEM

Tomoharu Tokunaga, Tadashi Kawamoto, Kenta Tanaka, Naohiro Nakamura, Yasuhiko Hayashi, Katsuhiro Sasaki, Kotaro Kuroda, Takahisa Yamamoto

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

WO 3 nanorods targeted for applications in electric devices were grown from a tungsten wire heated in an oxygen atmosphere inside an environmental transmission electron microscope, which allowed the growth process to be observed to reveal the growth mechanism of the WO 3 nanorods. The initial growth of the nanorods did not consist of tungsten oxide but rather crystal tungsten. The formed crystal tungsten nanorods were then oxidized, resulting in the formation of the tungsten oxide nanorods. Furthermore, it is expected that the nanorods grew through cracks in the natural surface oxide layer on the tungsten wire.

Original languageEnglish
Article number85
Pages (from-to)1-7
Number of pages7
JournalNanoscale Research Letters
Volume7
DOIs
Publication statusPublished - 2012
Externally publishedYes

Keywords

  • Environmental TEM
  • Nanorod
  • Oxide
  • Tungsten

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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    Tokunaga, T., Kawamoto, T., Tanaka, K., Nakamura, N., Hayashi, Y., Sasaki, K., Kuroda, K., & Yamamoto, T. (2012). Growth and structure analysis of tungsten oxide nanorods using environmental TEM. Nanoscale Research Letters, 7, 1-7. [85]. https://doi.org/10.1186/1556-276X-7-85