Investigation of all-solid-state electrochromic devices with durability enhanced tungsten-doped nickel oxide as a counter electrode

Sang Jin Lee, Tae Gon Lee, Sahn Nahm, Dong Hun Kim, Dae Jin Yang, Seung Ho Han

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Films of tungsten-doped nickel oxide, denoted Ni1-xWx oxide as counter electrode in electrochromic devices were deposited onto indium tin oxide coated glass substrates by reactive dc magnetron sputtering using tungsten-doped nickel alloy target. Electrochromic properties of NixW1-x oxides were evaluated in lithium perchlorate in propylene carbonate. Enhanced cycle stability with moderate optical modulation was obtained for Ni1-xWx oxide film with x = 0.024. Significant degradation in pure NiO film during extended electrochemical cycling caused by microstructural deep trap sites was minimized by W doping. The EC device fabricated with WO3 thin film and Ni1-xWx oxide thin film with x = 0.024 showed stable optical modulation of about 2% reduction from 100 to 1000 cycles. Flexible EC device was also fabricated with WO3 thin film and Ni1-xWx oxide thin film with x = 0.024 deposited on c-ITO/graphene/PET electrode and showed stable cycling performance with maintaining optical modulation of ΔT ≈ 40%.

Original languageEnglish
Article number152399
JournalJournal of Alloys and Compounds
Volume815
DOIs
Publication statusPublished - 2020 Jan 30

Fingerprint

Electrochromic devices
Tungsten
Nickel oxide
Light modulation
Durability
Oxide films
Thin films
Electrodes
Oxides
Graphite
Reactive sputtering
Nickel alloys
Tin oxides
Magnetron sputtering
Indium
Graphene
Propylene
Carbonates
Lithium
Doping (additives)

Keywords

  • Counter electrode
  • Electrochromic device
  • Flexible smart window
  • Tungsten-doped nickel oxide

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Investigation of all-solid-state electrochromic devices with durability enhanced tungsten-doped nickel oxide as a counter electrode. / Lee, Sang Jin; Lee, Tae Gon; Nahm, Sahn; Kim, Dong Hun; Yang, Dae Jin; Han, Seung Ho.

In: Journal of Alloys and Compounds, Vol. 815, 152399, 30.01.2020.

Research output: Contribution to journalArticle

@article{4cb6ab30d2994d8d9f6cd2478f19c37f,
title = "Investigation of all-solid-state electrochromic devices with durability enhanced tungsten-doped nickel oxide as a counter electrode",
abstract = "Films of tungsten-doped nickel oxide, denoted Ni1-xWx oxide as counter electrode in electrochromic devices were deposited onto indium tin oxide coated glass substrates by reactive dc magnetron sputtering using tungsten-doped nickel alloy target. Electrochromic properties of NixW1-x oxides were evaluated in lithium perchlorate in propylene carbonate. Enhanced cycle stability with moderate optical modulation was obtained for Ni1-xWx oxide film with x = 0.024. Significant degradation in pure NiO film during extended electrochemical cycling caused by microstructural deep trap sites was minimized by W doping. The EC device fabricated with WO3 thin film and Ni1-xWx oxide thin film with x = 0.024 showed stable optical modulation of about 2{\%} reduction from 100 to 1000 cycles. Flexible EC device was also fabricated with WO3 thin film and Ni1-xWx oxide thin film with x = 0.024 deposited on c-ITO/graphene/PET electrode and showed stable cycling performance with maintaining optical modulation of ΔT ≈ 40{\%}.",
keywords = "Counter electrode, Electrochromic device, Flexible smart window, Tungsten-doped nickel oxide",
author = "Lee, {Sang Jin} and Lee, {Tae Gon} and Sahn Nahm and Kim, {Dong Hun} and Yang, {Dae Jin} and Han, {Seung Ho}",
year = "2020",
month = "1",
day = "30",
doi = "10.1016/j.jallcom.2019.152399",
language = "English",
volume = "815",
journal = "Journal of Alloys and Compounds",
issn = "0925-8388",
publisher = "Elsevier BV",

}

TY - JOUR

T1 - Investigation of all-solid-state electrochromic devices with durability enhanced tungsten-doped nickel oxide as a counter electrode

AU - Lee, Sang Jin

AU - Lee, Tae Gon

AU - Nahm, Sahn

AU - Kim, Dong Hun

AU - Yang, Dae Jin

AU - Han, Seung Ho

PY - 2020/1/30

Y1 - 2020/1/30

N2 - Films of tungsten-doped nickel oxide, denoted Ni1-xWx oxide as counter electrode in electrochromic devices were deposited onto indium tin oxide coated glass substrates by reactive dc magnetron sputtering using tungsten-doped nickel alloy target. Electrochromic properties of NixW1-x oxides were evaluated in lithium perchlorate in propylene carbonate. Enhanced cycle stability with moderate optical modulation was obtained for Ni1-xWx oxide film with x = 0.024. Significant degradation in pure NiO film during extended electrochemical cycling caused by microstructural deep trap sites was minimized by W doping. The EC device fabricated with WO3 thin film and Ni1-xWx oxide thin film with x = 0.024 showed stable optical modulation of about 2% reduction from 100 to 1000 cycles. Flexible EC device was also fabricated with WO3 thin film and Ni1-xWx oxide thin film with x = 0.024 deposited on c-ITO/graphene/PET electrode and showed stable cycling performance with maintaining optical modulation of ΔT ≈ 40%.

AB - Films of tungsten-doped nickel oxide, denoted Ni1-xWx oxide as counter electrode in electrochromic devices were deposited onto indium tin oxide coated glass substrates by reactive dc magnetron sputtering using tungsten-doped nickel alloy target. Electrochromic properties of NixW1-x oxides were evaluated in lithium perchlorate in propylene carbonate. Enhanced cycle stability with moderate optical modulation was obtained for Ni1-xWx oxide film with x = 0.024. Significant degradation in pure NiO film during extended electrochemical cycling caused by microstructural deep trap sites was minimized by W doping. The EC device fabricated with WO3 thin film and Ni1-xWx oxide thin film with x = 0.024 showed stable optical modulation of about 2% reduction from 100 to 1000 cycles. Flexible EC device was also fabricated with WO3 thin film and Ni1-xWx oxide thin film with x = 0.024 deposited on c-ITO/graphene/PET electrode and showed stable cycling performance with maintaining optical modulation of ΔT ≈ 40%.

KW - Counter electrode

KW - Electrochromic device

KW - Flexible smart window

KW - Tungsten-doped nickel oxide

UR - http://www.scopus.com/inward/record.url?scp=85072647342&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85072647342&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2019.152399

DO - 10.1016/j.jallcom.2019.152399

M3 - Article

AN - SCOPUS:85072647342

VL - 815

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

M1 - 152399

ER -