Properties of VO2 thin film prepared with precursor VO(acac)2

  • Mei Pan*
  • , Hongmei Zhong
  • , Shaowei Wang
  • , Jie Liu
  • , Zhifeng Li
  • , Xiaoshuang Chen
  • , Wei Lu
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

118 Scopus citations

Abstract

Both pure and tungsten (W)- or chromium (Cr)-doped vanadium dioxide (VO2) thin films have been deposited by the sol-gel method on Si substrate using VO(acac)2 as a precursor. XRD, Raman and atomic force microscopy (AFM) measurements showed the high (1 1 0) orientation of the films. It was found that the temperature coefficient of resistivity (TCR) values of the films around room temperature could be adjusted by impurity doping. Compared with the un-doped VO2 films, the W-doping leads to larger TCR values, while the Cr-doping leads to smaller ones. The TCR value is linearly dependent on the impurity at room temperature. The largest TCR value of 5.2/%K-1 was obtained for 20/at% W-doped VO2 film.

Original languageEnglish
Pages (from-to)121-126
Number of pages6
JournalJournal of Crystal Growth
Volume265
Issue number1-2
DOIs
StatePublished - 15 Apr 2004
Externally publishedYes

Keywords

  • A1. Temperature coefficient of resistivity
  • Al. Sol-gel
  • B1. Vanadium dioxide thin film

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