材料科学
电致变色
佩多:嘘
电致变色装置
电极
聚二甲基硅氧烷
可伸缩电子设备
弹性体
导电体
聚苯乙烯磺酸盐
复合材料
电解质
光电子学
聚合物
数码产品
化学
物理化学
作者
Michael Lerond,Mohan A Raj,Veronica Wu,Fabio Cicoira,W. G. Skene
出处
期刊:Nanotechnology
[IOP Publishing]
日期:2022-07-14
卷期号:33 (40): 405706-405706
被引量:6
标识
DOI:10.1088/1361-6528/ac78f0
摘要
Stretchable electrochromic devices (ECDs) were fabricated from electrospun PEDOT:PSS (poly(3, 4-ethylenedioxythiophene):polystyrene sulfonate) fibers. Stretchable and transparent electrodes with a sheet resistance of 1200 Ω sq-1were prepared by depositing the conductive fibers on elastomeric substrates that were prepared from polydimethylsiloxane. The conductive substrates replaced the ITO coated glass electrodes that are typically used in ECDs. The functioning device was prepared from a flexible chitosan electrolytic gel and a 4, 7-bis(4-diphenylaminophenyl)-2, 1, 3-benzothiaziazole (TPA-BZT-TPA) electrochrome that were deposited on the streatchable transparent electrodes. The assembled device could be stretched to 150% its original length and bent to a curvature of 0.1. The device could be operated and switched between its yellow (off) and blue (on) states while being stretched and bent with a maximum contrast ΔT ≈ 30% at 805 nm and a coloration efficiency of 168 cm2C-1. The stretchable device had an electrochromic contrast that was 30% greater than its counterpart that was prepared from conventional ITO-glass electrodes. The critical composition required for making devices truly stretchable was possible by evaluating the performance of five types of devices consisting of different layers.
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