Characterization of electrochromic tungsten oxide film from electrochemical anodized RF-sputtered tungsten films

Chun Kai Wang; Chung Kwei Lin; Ching Lin Wu; Sanjaya Brahma; Sheng Chang Wang; Jow Lay Huang

doi:10.1016/j.ceramint.2012.11.010

Characterization of electrochromic tungsten oxide film from electrochemical anodized RF-sputtered tungsten films

Chun Kai Wang, Chung Kwei Lin, Ching Lin Wu, Sanjaya Brahma, Sheng Chang Wang, Jow Lay Huang

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

Tungsten oxide (WO₃) films prepared by annealing electrochemically anodized metallic tungsten (W) films deposited by radio-frequency sputtering were characterized. Tungsten oxide films of various morphology, crystallinity, and porosity can be prepared by carefully altering the anodization time (20-50 min) and annealing temperature (450-550 °C). The film obtained after 40 min of anodization, and that annealed at 500 °C shows the best electrochromic performance with optical modulation of 43.6% and coloration efficiency of 42.8 cm²/C. The effects of anodization time and annealing temperature on microstructure and electrochromic properties were addressed.

Original language	English
Pages (from-to)	4293-4298
Number of pages	6
Journal	Ceramics International
Volume	39
Issue number	4
DOIs	https://doi.org/10.1016/j.ceramint.2012.11.010
Publication status	Published - May 2013

Keywords

Electrochemical anodization
Electrochromism
Tungsten oxide film

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Materials Chemistry
Surfaces, Coatings and Films
Process Chemistry and Technology

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10.1016/j.ceramint.2012.11.010

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title = "Characterization of electrochromic tungsten oxide film from electrochemical anodized RF-sputtered tungsten films",

abstract = "Tungsten oxide (WO3) films prepared by annealing electrochemically anodized metallic tungsten (W) films deposited by radio-frequency sputtering were characterized. Tungsten oxide films of various morphology, crystallinity, and porosity can be prepared by carefully altering the anodization time (20-50 min) and annealing temperature (450-550 °C). The film obtained after 40 min of anodization, and that annealed at 500 °C shows the best electrochromic performance with optical modulation of 43.6% and coloration efficiency of 42.8 cm2/C. The effects of anodization time and annealing temperature on microstructure and electrochromic properties were addressed.",

keywords = "Electrochemical anodization, Electrochromism, Tungsten oxide film",

author = "Wang, {Chun Kai} and Lin, {Chung Kwei} and Wu, {Ching Lin} and Sanjaya Brahma and Wang, {Sheng Chang} and Huang, {Jow Lay}",

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language = "English",

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T1 - Characterization of electrochromic tungsten oxide film from electrochemical anodized RF-sputtered tungsten films

AU - Wang, Chun Kai

AU - Lin, Chung Kwei

AU - Wu, Ching Lin

AU - Brahma, Sanjaya

AU - Wang, Sheng Chang

AU - Huang, Jow Lay

PY - 2013/5

Y1 - 2013/5

N2 - Tungsten oxide (WO3) films prepared by annealing electrochemically anodized metallic tungsten (W) films deposited by radio-frequency sputtering were characterized. Tungsten oxide films of various morphology, crystallinity, and porosity can be prepared by carefully altering the anodization time (20-50 min) and annealing temperature (450-550 °C). The film obtained after 40 min of anodization, and that annealed at 500 °C shows the best electrochromic performance with optical modulation of 43.6% and coloration efficiency of 42.8 cm2/C. The effects of anodization time and annealing temperature on microstructure and electrochromic properties were addressed.

AB - Tungsten oxide (WO3) films prepared by annealing electrochemically anodized metallic tungsten (W) films deposited by radio-frequency sputtering were characterized. Tungsten oxide films of various morphology, crystallinity, and porosity can be prepared by carefully altering the anodization time (20-50 min) and annealing temperature (450-550 °C). The film obtained after 40 min of anodization, and that annealed at 500 °C shows the best electrochromic performance with optical modulation of 43.6% and coloration efficiency of 42.8 cm2/C. The effects of anodization time and annealing temperature on microstructure and electrochromic properties were addressed.

KW - Electrochemical anodization

KW - Electrochromism

KW - Tungsten oxide film

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JO - Ceramics International

JF - Ceramics International

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Characterization of electrochromic tungsten oxide film from electrochemical anodized RF-sputtered tungsten films

Abstract

Keywords

ASJC Scopus subject areas

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