Electrochromic and optical properties of mesoporous tungsten oxide films

Esra Ozkan; Se Hee Lee; Ping Liu; C. Edwin Tracy; Fatma Z. Tepehan; J. Roland Pitts; Satyen K. Deb

doi:10.1016/S0167-2738(02)00143-1

Electrochromic and optical properties of mesoporous tungsten oxide films

Esra Ozkan
, Se Hee Lee
, Ping Liu^*
, C. Edwin Tracy
, Fatma Z. Tepehan
, J. Roland Pitts
, Satyen K. Deb

^*Bu çalışma için yazışmadan sorumlu yazar

Fizik Mühendisliği Bölümü

National Renewable Energy Laboratory
Istanbul Technical University

Araştırma çıktısı: Dergi yayını › Makale › Hakemli

141 Atıf (Scopus)

Özet

Standard and mesoporous sol-gel tungsten oxide thin films were prepared by a spin-coating technique from an ethanolic solution of tungsten hexachloride. A block copolymer (BASF™ Pluronic p₁₂₃) was employed as a template to generate the mesoporous structure. An ultraviolet (UV) illumination method was employed to remove the polymer templates at room temperature. The electrochromic and optical properties of the mesoporous films are described and compared to standard sol-gel tungsten oxide films. Results are also presented on the samples prepared by thermal treatment. We demonstrate that the UV illumination/ozone treatment is a superior method to remove templates which enables us to more effectively investigate the effect of mesoporosity on the electrokinetics of ion insertion into tungsten oxide films.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	139-146
Sayfa sayısı	8
Dergi	Solid State Ionics
Hacim	149
Basın numarası	1-2
DOI'lar	https://doi.org/10.1016/S0167-2738(02)00143-1
Yayın durumu	Yayınlandı - Tem 2002

Finansman

This work has been supported by the Director's Discretionary Research and Development Program (DDRD) at the National Renewable Energy Laboratory, which is funded by US Department of Energy, under contract no. DE-AC-36-99GO10337. The authors thank Dr. Yanfa Yan for collecting TEM images and Dr. Helio Moutinho for performing AFM measurements.

Finansörler
Director's Discretionary Research and Development Program
US Department of Energy

Belgeye Erişim

10.1016/S0167-2738(02)00143-1

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "Electrochromic and optical properties of mesoporous tungsten oxide films",

abstract = "Standard and mesoporous sol-gel tungsten oxide thin films were prepared by a spin-coating technique from an ethanolic solution of tungsten hexachloride. A block copolymer (BASF{\texttrademark} Pluronic p123) was employed as a template to generate the mesoporous structure. An ultraviolet (UV) illumination method was employed to remove the polymer templates at room temperature. The electrochromic and optical properties of the mesoporous films are described and compared to standard sol-gel tungsten oxide films. Results are also presented on the samples prepared by thermal treatment. We demonstrate that the UV illumination/ozone treatment is a superior method to remove templates which enables us to more effectively investigate the effect of mesoporosity on the electrokinetics of ion insertion into tungsten oxide films.",

keywords = "Electrochromism, Insertion kinetics, Mesoporous tungsten oxide, Sol-gel, UV illumination",

author = "Esra Ozkan and Lee, \{Se Hee\} and Ping Liu and Tracy, \{C. Edwin\} and Tepehan, \{Fatma Z.\} and Pitts, \{J. Roland\} and Deb, \{Satyen K.\}",

year = "2002",

month = jul,

doi = "10.1016/S0167-2738(02)00143-1",

language = "English",

volume = "149",

pages = "139--146",

journal = "Solid State Ionics",

issn = "0167-2738",

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TY - JOUR

T1 - Electrochromic and optical properties of mesoporous tungsten oxide films

AU - Ozkan, Esra

AU - Lee, Se Hee

AU - Liu, Ping

AU - Tracy, C. Edwin

AU - Tepehan, Fatma Z.

AU - Pitts, J. Roland

AU - Deb, Satyen K.

PY - 2002/7

Y1 - 2002/7

N2 - Standard and mesoporous sol-gel tungsten oxide thin films were prepared by a spin-coating technique from an ethanolic solution of tungsten hexachloride. A block copolymer (BASF™ Pluronic p123) was employed as a template to generate the mesoporous structure. An ultraviolet (UV) illumination method was employed to remove the polymer templates at room temperature. The electrochromic and optical properties of the mesoporous films are described and compared to standard sol-gel tungsten oxide films. Results are also presented on the samples prepared by thermal treatment. We demonstrate that the UV illumination/ozone treatment is a superior method to remove templates which enables us to more effectively investigate the effect of mesoporosity on the electrokinetics of ion insertion into tungsten oxide films.

AB - Standard and mesoporous sol-gel tungsten oxide thin films were prepared by a spin-coating technique from an ethanolic solution of tungsten hexachloride. A block copolymer (BASF™ Pluronic p123) was employed as a template to generate the mesoporous structure. An ultraviolet (UV) illumination method was employed to remove the polymer templates at room temperature. The electrochromic and optical properties of the mesoporous films are described and compared to standard sol-gel tungsten oxide films. Results are also presented on the samples prepared by thermal treatment. We demonstrate that the UV illumination/ozone treatment is a superior method to remove templates which enables us to more effectively investigate the effect of mesoporosity on the electrokinetics of ion insertion into tungsten oxide films.

KW - Electrochromism

KW - Insertion kinetics

KW - Mesoporous tungsten oxide

KW - Sol-gel

KW - UV illumination

UR - https://www.scopus.com/pages/publications/0036643802

U2 - 10.1016/S0167-2738(02)00143-1

DO - 10.1016/S0167-2738(02)00143-1

M3 - Article

AN - SCOPUS:0036643802

SN - 0167-2738

VL - 149

SP - 139

EP - 146

JO - Solid State Ionics

JF - Solid State Ionics

IS - 1-2

ER -

Electrochromic and optical properties of mesoporous tungsten oxide films

Özet

Finansman

Belgeye Erişim

Diğer Dosyalar ve Linkler

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