Study of poly(vinylidene fluoride-co-hexafluoropropylene)-based polymer electrolyte and its application inelectrochromic device

• Main Authors: Jian-Wei Liao, 廖建維
• Other Authors: 吳知易
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/34393051494218763201

碩士 === 國立雲林科技大學 === 化學工程與材料工程系 === 102 === Six novel ionic liquids are synthesized, and they are identified using MNR. The basic properties of ILs are measured using viscometer, densitometer and conductivity meter, and the thermal properties of them are characterized using TGA and DSC. The polymer electrolyte is prepared by the solution-casting method. First, Polymer and a series of novel ILs are dissolved in acetone, and stirred for couple hours at ambient temperature. Then, polymer-IL mixture is cast on plate glass. The sample is vacuum-dried to remove solvent completely. At different temperatures, the conductivity of the blend polymer electrolyte is dectected via AC Impedence of CHI. AO2IM[TFSI]-based polymer membrane show good conductivity, and it’s 4.15×10-3 S cm-1 at 30oC. Here, the polymer film is electrochemically deposited on ITO glass. The electrochromic devices based on poly(indole-6-carboxylic acid-co-EDOT) as anodic ploymers, PEDOT as cathodic polymer, and PVDF(HFP)-based polymer electrolyte are constructed. The characterizations of the device is performed using CHI and UV-vis spectros- copy at different redox potential. The optical property such as coloration efficiency, switching time, and stability are studied. The ΔT of device is up to 34% from oxidized state to neutral state.