基板表面粗糙度对PMeT薄膜电致变色特性的影响

C. Yang, J. Chou, Yi-Hung Liao, Chia-Yu Liu, Pei-An Ho, C. Huang, Hsueh-Tao Chou
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引用次数: 0

摘要

本研究的目的是研究表面粗糙度对电致变色特性的影响。采用湿法刻蚀法制备了氧化铟锡玻璃(ITO/ glass)的粗糙表面。用恒电位法在ITO/Glass上沉积了聚(3-甲基噻吩)(PMeT)。在0.1 M高氯酸锂(LiClO4)/碳酸丙烯酯(PC)电解质中,研究了PMeT/ITO/Glass的电致变色行为。与草酸((COOH)2·H2O)和氯化铁+盐酸(FeCl3+HCl)溶液相比,在(COOH)2·H2O溶液中蚀刻ITO/Glass具有较高的表面粗糙度。在(COOH)2·H2O溶液中蚀刻160秒后,PMeT/ITO/Glass在450 nm处透光率变化最大(ΔT(%))(25%),在FeCl3+HCl溶液中蚀刻60秒后,PMeT/ITO/Glass在650 nm处透光率变化最大(ΔT(%))(5%)。实验结果表明,PMeT/ITO/Glass的颜色由蓝色(氧化态)变为红色(还原态)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The investigation of surface roughness of substrate on electrochromic characteristics for PMeT thin film
The objective of this study is to investigate the influence of surface roughness on electrochromic characteristics. The rough surface of indium tin oxide/glass (ITO/Glass) was prepared by wet etching. And the poly (3-methylthiophene) (PMeT) has been deposited on ITO/Glass by potentiostatic method. The electrochromic behaviors of the PMeT/ITO/Glass were performed in 0.1 M lithium perchlorate (LiClO4)/propylene carbonate (PC) electrolyte. Compared with the oxalic acid ((COOH)2·H2O) and ferric chloride + hydrochloric acid (FeCl3+HCl) solutions, the ITO/Glass has high surface roughness when the ITO/Glass was etched in (COOH)2·H2O solution. The PMeT/ITO/Glass has the best transmittance variation (ΔT(%)) (25 %) at 450 nm after the ITO/Glass was etched in (COOH)2·H2O solution for 160 sec. And, the PMeT/ITO/Glass has the best transmittance variation (ΔT(%)) (5 %) at 650 nm after the ITO/Glass was etched in FeCl3+HCl solution for 60 sec. Furthermore, the experimental results observed that the color of PMeT/ITO/Glass was changed from blue (oxidation state) to red (reduction state).
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