V2O5 nanowires as a functional material for electrochromic device

Keng-Che Cheng*, Fu-Rong Chen, Ji-Jung Kai

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

150 Citations (Scopus)

Abstract

Vanadium oxide nanowires were prepared successfully by thermal evaporation onto ITO-coated glass at a pressure of 8×10-4Torr and 650 °C from vanadium oxide powders (V2O5 99.95%). The vanadium oxide nanowires-based electrochromic device (ECD) provides larger reaction surface area than thin film-based ECD to store more ions as working or counter electrode. Structure, morphological, and electrochromic properties were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), cyclic voltammograms (CV), and UV-VIS spectroscopy. The diameter of vanadium oxide nanowires range from 10 to 100 nm and length up to several hundreds nanometers. The morphology and performance of vanadium oxide nanowires did not alter after 1000 reox-cycles observed by SEM and CV.
Original languageEnglish
Pages (from-to)1156-1165
JournalSolar Energy Materials and Solar Cells
Volume90
Issue number7-8
DOIs
Publication statusPublished - 5 May 2006
Externally publishedYes

Research Keywords

  • Electrochromic
  • Nanowires
  • V2O5
  • Vanadium oxide

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