Ultrasonic Spray Deposition of High Performance WO3 Films Using Template-Assisted Sol-Gel Chemistry

Chi Ping Li; Feng Lin; Ryan M. Richards; Chaiwat Engtrakul; Anne C. Dillon; Robert C. Tenent; Colin A. Wolden

doi:10.1016/j.elecom.2012.09.017

Ultrasonic Spray Deposition of High Performance WO3 Films Using Template-Assisted Sol-Gel Chemistry

Chi Ping Li, Feng Lin, Ryan M. Richards, Chaiwat Engtrakul, Anne C. Dillon, Robert C. Tenent, Colin A. Wolden

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

23 Scopus Citations

Abstract

Tungsten oxide (WO ₃) thin films with nanoscale porosity were prepared by adopting templating sol-gel chemistry to ultrasonic spray deposition (USD). It was found that the electrochromic performance was strongly correlated to the annealing conditions used to remove the triblock copolymer template. Optimized films display state-of-the-art performance with respect to coloration efficiency (> 50 cm ²/C), optical modulation (> 75%), and switching times (< 10 s). The films exhibit good durability, displaying disordered, nanocrystalline morphology. USD is compatible with in line manufacturing, and the performance was notably improved over films deposited by spin coating using the same chemistry.

Original language	American English
Pages (from-to)	62-65
Number of pages	4
Journal	Electrochemistry Communications
Volume	25
Issue number	1
DOIs	https://doi.org/10.1016/j.elecom.2012.09.017 https://doi.org/10.1016/j.elecom.2012.09.017
State	Published - Nov 2012

NREL Publication Number

NREL/JA-5900-57007

Keywords

Electrochromics
Mesoporous
Sol-gel
Tungsten oxide
Ultrasonic spray deposition

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title = "Ultrasonic Spray Deposition of High Performance WO3 Films Using Template-Assisted Sol-Gel Chemistry",

abstract = "Tungsten oxide (WO 3) thin films with nanoscale porosity were prepared by adopting templating sol-gel chemistry to ultrasonic spray deposition (USD). It was found that the electrochromic performance was strongly correlated to the annealing conditions used to remove the triblock copolymer template. Optimized films display state-of-the-art performance with respect to coloration efficiency (> 50 cm 2/C), optical modulation (> 75%), and switching times (< 10 s). The films exhibit good durability, displaying disordered, nanocrystalline morphology. USD is compatible with in line manufacturing, and the performance was notably improved over films deposited by spin coating using the same chemistry.",

keywords = "Electrochromics, Mesoporous, Sol-gel, Tungsten oxide, Ultrasonic spray deposition",

author = "Li, {Chi Ping} and Feng Lin and Richards, {Ryan M.} and Chaiwat Engtrakul and Dillon, {Anne C.} and Tenent, {Robert C.} and Wolden, {Colin A.}",

year = "2012",

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doi = "10.1016/j.elecom.2012.09.017",

language = "American English",

volume = "25",

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journal = "Electrochemistry Communications",

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T1 - Ultrasonic Spray Deposition of High Performance WO3 Films Using Template-Assisted Sol-Gel Chemistry

AU - Li, Chi Ping

AU - Lin, Feng

AU - Richards, Ryan M.

AU - Engtrakul, Chaiwat

AU - Dillon, Anne C.

AU - Tenent, Robert C.

AU - Wolden, Colin A.

PY - 2012/11

Y1 - 2012/11

N2 - Tungsten oxide (WO 3) thin films with nanoscale porosity were prepared by adopting templating sol-gel chemistry to ultrasonic spray deposition (USD). It was found that the electrochromic performance was strongly correlated to the annealing conditions used to remove the triblock copolymer template. Optimized films display state-of-the-art performance with respect to coloration efficiency (> 50 cm 2/C), optical modulation (> 75%), and switching times (< 10 s). The films exhibit good durability, displaying disordered, nanocrystalline morphology. USD is compatible with in line manufacturing, and the performance was notably improved over films deposited by spin coating using the same chemistry.

AB - Tungsten oxide (WO 3) thin films with nanoscale porosity were prepared by adopting templating sol-gel chemistry to ultrasonic spray deposition (USD). It was found that the electrochromic performance was strongly correlated to the annealing conditions used to remove the triblock copolymer template. Optimized films display state-of-the-art performance with respect to coloration efficiency (> 50 cm 2/C), optical modulation (> 75%), and switching times (< 10 s). The films exhibit good durability, displaying disordered, nanocrystalline morphology. USD is compatible with in line manufacturing, and the performance was notably improved over films deposited by spin coating using the same chemistry.

KW - Electrochromics

KW - Mesoporous

KW - Sol-gel

KW - Tungsten oxide

KW - Ultrasonic spray deposition

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DO - 10.1016/j.elecom.2012.09.017

M3 - Article

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SN - 1388-2481

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JO - Electrochemistry Communications

JF - Electrochemistry Communications

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ER -

Ultrasonic Spray Deposition of High Performance WO3 Films Using Template-Assisted Sol-Gel Chemistry

Abstract

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Keywords

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