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

doi:10.1016/j.tsf.2011.08.074

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 journal › Article › peer-review

19 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 language	English
Pages (from-to)	1375-1378
Number of pages	4
Journal	Thin Solid Films
Volume	520
Issue number	5
DOIs	https://doi.org/10.1016/j.tsf.2011.08.074
Publication status	Published - Dec 30 2011
Externally published	Yes

Keywords

Carbon nanotubes
Electrochromic performance
Sol-gel
Tungsten oxide film

ASJC Scopus subject areas

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

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10.1016/j.tsf.2011.08.074

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title = "Electrochromic performance of hybrid tungsten oxide films with multiwalled-CNT additions",

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.",

keywords = "Carbon nanotubes, Electrochromic performance, Sol-gel, Tungsten oxide film",

author = "Lin, {Chung Kwei} and Tseng, {Sheng Chung} and Cheng, {Chin Hua} and Chen, {Chin Yi} and Chen, {Chien Chon}",

note = "Funding Information: The authors would like to thank the National Science Council of Taiwan for financially supporting this work. Partial financial support from FCU was also acknowledged.",

year = "2011",

month = dec,

day = "30",

doi = "10.1016/j.tsf.2011.08.074",

language = "English",

volume = "520",

pages = "1375--1378",

journal = "Thin Solid Films",

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T1 - Electrochromic performance of hybrid tungsten oxide films with multiwalled-CNT additions

AU - Lin, Chung Kwei

AU - Tseng, Sheng Chung

AU - Cheng, Chin Hua

AU - Chen, Chin Yi

AU - Chen, Chien Chon

N1 - Funding Information: The authors would like to thank the National Science Council of Taiwan for financially supporting this work. Partial financial support from FCU was also acknowledged.

PY - 2011/12/30

Y1 - 2011/12/30

N2 - 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.

AB - 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.

KW - Carbon nanotubes

KW - Electrochromic performance

KW - Sol-gel

KW - Tungsten oxide film

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

Abstract

Keywords

ASJC Scopus subject areas

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