Highly robust and flexible WO3·2H2O/PEDOT films for improved electrochromic performance in near-infrared region

Huiying Qu; Xiang Zhang; Hangchuan Zhang; Yanlong Tian; Na Li; Haiming Lv; Shuai Hou; Xingang Li; Jiupeng Zhao; Yao Li

doi:10.1016/j.solmat.2016.12.030

Highly robust and flexible WO₃·2H₂O/PEDOT films for improved electrochromic performance in near-infrared region

Huiying Qu
, Xiang Zhang
, Hangchuan Zhang
, Yanlong Tian
, Na Li
, Haiming Lv
, Shuai Hou
, Xingang Li
, Jiupeng Zhao^*
, Yao Li

^*Corresponding author for this work

School of Astronautics

School of Chemistry and Chemical Engineering, Harbin Institute of Technology
Harbin Institute of Technology
Harbin Institute of Technology
China State Construction Engineering Corporation

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

45 Scopus citations

Abstract

Innovative WO₃·2H₂O/PEDOT films with strong adhesion of the electrochromic layer and the substrate were fabricated. A WO₃·2H₂O/PEDOT electrochromic layer can be firmly fixed to an ethylene vinyl acetate/polyethylene terephthalate (EVA/PET) electrode using Ag as the conductive layer by a transient heating method. The electrochromic film is mechanically robust and can be twisted, folded and crumpled without performance degeneration. Improved performance has been realized by WO₃·2H₂O/PEDOT films compared with WO₃·2H₂O films due to the excellent electrical conductivity of PEDOT, including a higher of Li-ion diffusion coefficient (1.1×10⁻⁹ cm² s⁻¹), faster response time (2.6 s for bleaching time and 4.4 s for coloration time), higher color efficiency (180.2 cm² C⁻¹) and larger transmittance modulation (63.1%) at 956 nm. The results are very promising for the next generation of deformable or implantable hidden message displays and wearable smart clothes applications.

Original language	English
Pages (from-to)	23-30
Number of pages	8
Journal	Solar Energy Materials and Solar Cells
Volume	163
DOIs	https://doi.org/10.1016/j.solmat.2016.12.030
State	Published - 1 Apr 2017

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Electrochromics
Flexible
Near-infrared region
WO·2HO/PEDOT

Access to Document

10.1016/j.solmat.2016.12.030

Cite this

@article{86d4ec9956b54539a5a2b2a057b6a08a,

title = "Highly robust and flexible WO3·2H2O/PEDOT films for improved electrochromic performance in near-infrared region",

abstract = "Innovative WO3·2H2O/PEDOT films with strong adhesion of the electrochromic layer and the substrate were fabricated. A WO3·2H2O/PEDOT electrochromic layer can be firmly fixed to an ethylene vinyl acetate/polyethylene terephthalate (EVA/PET) electrode using Ag as the conductive layer by a transient heating method. The electrochromic film is mechanically robust and can be twisted, folded and crumpled without performance degeneration. Improved performance has been realized by WO3·2H2O/PEDOT films compared with WO3·2H2O films due to the excellent electrical conductivity of PEDOT, including a higher of Li-ion diffusion coefficient (1.1×10−9 cm2 s−1), faster response time (2.6 s for bleaching time and 4.4 s for coloration time), higher color efficiency (180.2 cm2 C−1) and larger transmittance modulation (63.1\%) at 956 nm. The results are very promising for the next generation of deformable or implantable hidden message displays and wearable smart clothes applications.",

keywords = "Electrochromics, Flexible, Near-infrared region, WO·2HO/PEDOT",

author = "Huiying Qu and Xiang Zhang and Hangchuan Zhang and Yanlong Tian and Na Li and Haiming Lv and Shuai Hou and Xingang Li and Jiupeng Zhao and Yao Li",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

month = apr,

day = "1",

doi = "10.1016/j.solmat.2016.12.030",

language = "英语",

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TY - JOUR

T1 - Highly robust and flexible WO3·2H2O/PEDOT films for improved electrochromic performance in near-infrared region

AU - Qu, Huiying

AU - Zhang, Xiang

AU - Zhang, Hangchuan

AU - Tian, Yanlong

AU - Li, Na

AU - Lv, Haiming

AU - Hou, Shuai

AU - Li, Xingang

AU - Zhao, Jiupeng

AU - Li, Yao

PY - 2017/4/1

Y1 - 2017/4/1

N2 - Innovative WO3·2H2O/PEDOT films with strong adhesion of the electrochromic layer and the substrate were fabricated. A WO3·2H2O/PEDOT electrochromic layer can be firmly fixed to an ethylene vinyl acetate/polyethylene terephthalate (EVA/PET) electrode using Ag as the conductive layer by a transient heating method. The electrochromic film is mechanically robust and can be twisted, folded and crumpled without performance degeneration. Improved performance has been realized by WO3·2H2O/PEDOT films compared with WO3·2H2O films due to the excellent electrical conductivity of PEDOT, including a higher of Li-ion diffusion coefficient (1.1×10−9 cm2 s−1), faster response time (2.6 s for bleaching time and 4.4 s for coloration time), higher color efficiency (180.2 cm2 C−1) and larger transmittance modulation (63.1%) at 956 nm. The results are very promising for the next generation of deformable or implantable hidden message displays and wearable smart clothes applications.

AB - Innovative WO3·2H2O/PEDOT films with strong adhesion of the electrochromic layer and the substrate were fabricated. A WO3·2H2O/PEDOT electrochromic layer can be firmly fixed to an ethylene vinyl acetate/polyethylene terephthalate (EVA/PET) electrode using Ag as the conductive layer by a transient heating method. The electrochromic film is mechanically robust and can be twisted, folded and crumpled without performance degeneration. Improved performance has been realized by WO3·2H2O/PEDOT films compared with WO3·2H2O films due to the excellent electrical conductivity of PEDOT, including a higher of Li-ion diffusion coefficient (1.1×10−9 cm2 s−1), faster response time (2.6 s for bleaching time and 4.4 s for coloration time), higher color efficiency (180.2 cm2 C−1) and larger transmittance modulation (63.1%) at 956 nm. The results are very promising for the next generation of deformable or implantable hidden message displays and wearable smart clothes applications.

KW - Electrochromics

KW - Flexible

KW - Near-infrared region

KW - WO·2HO/PEDOT

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DO - 10.1016/j.solmat.2016.12.030

M3 - 文章

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