Time dependent evolution of vanadium pentoxide nanowires in sols

Sung Joon Park, Jeong Sook Ha, Yu Jin Chang, Gyu Tae Kim

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

We report on the time dependent growth of vanadium pentoxide (V 2O5) nanowires in V2O5 sols prepared from ammonium (meta)-vanadate in the presence of an acidic ion exchanger at different temperatures. V2O5 nanowires were adsorbed on SiO2/Si substrate pretreated with 3-aminopropyltriethoxysilane (3-APS) and the structural evolution at 24°C was investigated by atomic force microscope (AFM) and scanning tunneling microscope (STM). Optical absorption and current-voltage measurements confirmed the gradual growth of V2O5 nanowires with time. At the higher temperatures of the sol solution, the elongation rate of the V2O5 nanowires was enhanced, indicating the endothermic growth process.

Original languageEnglish
Pages (from-to)199-202
Number of pages4
JournalChemical Physics Letters
Volume390
Issue number1-3
DOIs
Publication statusPublished - 2004 May 21

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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