Lin Cheng-Lan, Cheng Tzung-Lin, Wu Nian-Jheng
Department of Chemical and Materials Engineering, Tamkang University, New Taipei City 25137, Taiwan.
Water Treatment Science and Technology Research Center, Tamkang University, New Taipei City 25137, Taiwan.
Polymers (Basel). 2022 Jul 21;14(14):2951. doi: 10.3390/polym14142951.
Electrochromic materials carry out redox reactions and change their colors upon external bias. These materials are the primary component in constructing smart windows for energy saving in buildings or vehicles. Enhancing the electrochromic performances of the materials is crucial for their practical applications. Micropatterned poly(3,4-ethylenedioxythiophene) (mPEDOT) thin films are electrodeposited on indium tin oxide conducting glass in this study. Their electrochromic properties, including transmittance modulation ability, color-switching rates, and coloration efficiency, are investigated and compared with nonpatterned PEDOT thin films. The mPEDOT thin films exhibited faster coloring and bleaching speeds and higher coloration efficiency than the PEDOT thin films while keeping similar transmittance modulation ability. The results suggest that micropatterning an electrochromic material thin film might enhance its electrochromic performances. This research demonstrates the possibility of promoting the color-switching rate of a PEDOT thin film by micropatterning it.
电致变色材料进行氧化还原反应，并在外部偏压下改变颜色。这些材料是构建用于建筑物或车辆节能的智能窗户的主要组件。提高材料的电致变色性能对其实际应用至关重要。在本研究中，微图案化的聚（3,4-乙撑二氧噻吩）（mPEDOT）薄膜被电沉积在氧化铟锡导电玻璃上。研究了它们的电致变色性能，包括透过率调制能力、颜色切换速率和着色效率，并与无图案的PEDOT薄膜进行了比较。mPEDOT薄膜在保持相似透过率调制能力的同时，表现出比PEDOT薄膜更快的着色和漂白速度以及更高的着色效率。结果表明，对电致变色材料薄膜进行微图案化可能会提高其电致变色性能。这项研究证明了通过对PEDOT薄膜进行微图案化来提高其颜色切换速率的可能性。
