Electrochromic performance of hybrid tungsten oxide films with multiwalled-CNT additions

Chung Kwei Lin, Sheng Chung Tseng, Chin Hua Cheng, Chin Yi Chen, Chien Chon Chen

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

In this study, tungsten oxide films were prepared by sol-gel technique. Various amounts of multiwalled carbon nanotubes (MWCNTs) were added during sol-gel process to obtain hybrid WO3/MWCNT films. The original and hybrid films were characterized by thermogravimetric analysis, X-ray diffraction analysis, and scanning electron microscopy analysis, whereas the electrochromic performance was evaluated by measuring changes in the optical transmittance caused by potentiostatic charge-discharge intercalation. The influence on the structure and properties of tungsten oxide film due to MWCNT addition was also investigated. The results showed that all of the films were amorphous and exhibited porous microstructure. The electrochromic performance of pristine WO3 film was improved by adding MWCNTs that served as a template for the growth of WO3 and resulted in more porous microstructure. The hybrid tungsten oxide films with 0.1 wt.% MWCNT addition exhibited the best electrochromic performance.

Original languageEnglish
Pages (from-to)1375-1378
Number of pages4
JournalThin Solid Films
Volume520
Issue number5
DOIs
Publication statusPublished - Dec 30 2011
Externally publishedYes

Fingerprint

tungsten oxides
Multiwalled carbon nanotubes (MWCN)
Oxide films
Tungsten
oxide films
carbon nanotubes
microstructure
Microstructure
Opacity
Amorphous films
sol-gel processes
Intercalation
intercalation
X ray diffraction analysis
Sol-gel process
Sol-gels
Thermogravimetric analysis
transmittance
templates
tungsten oxide

Keywords

  • Carbon nanotubes
  • Electrochromic performance
  • Sol-gel
  • Tungsten oxide film

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Metals and Alloys
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

Electrochromic performance of hybrid tungsten oxide films with multiwalled-CNT additions. / Lin, Chung Kwei; Tseng, Sheng Chung; Cheng, Chin Hua; Chen, Chin Yi; Chen, Chien Chon.

In: Thin Solid Films, Vol. 520, No. 5, 30.12.2011, p. 1375-1378.

Research output: Contribution to journalArticle

Lin, Chung Kwei ; Tseng, Sheng Chung ; Cheng, Chin Hua ; Chen, Chin Yi ; Chen, Chien Chon. / Electrochromic performance of hybrid tungsten oxide films with multiwalled-CNT additions. In: Thin Solid Films. 2011 ; Vol. 520, No. 5. pp. 1375-1378.
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