Electropolymerization and spectroelectrochemical properties of poly(4,7-dithien-2-yl-2,1,3-benzothiadiazole) films in three 1-butyl-3-methylimidazolium ionic liquids
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- 作者：Abebaw A. Tsegaye ; Tesfaye T. Waryo ; twaryo@uwc.ac.za" class="auth_mail" title="E-mail the corresponding author ; Priscilla G. Baker ; Emmanuel I. Iwuoha ; eiwuoha@uwc.ac.za" class="auth_mail" title="E-mail the corresponding author
- 关键词：Polymers ; Thin films ; Electrochemical techniques ; Visible and ultraviolet spectrometer ; Electrochemical properties ; Optical properties
- 刊名：Materials Chemistry & Physics
- 出版年：2016
- 出版时间：1 March 2016
- 年：2016
- 卷：171
- 期：Complete
- 页码：57-62
- 全文大小：1164 K
文摘
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Poly(4,7-dithien-2-yl-2,1,3-benzothiadiazole) films electrodeposited in three 1-butyl-3-methylimidazolium ionic liquids (ILs).
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Nano-textured micro-smooth PDTBT films formed regardless of the anion type (or IL): BF4- (IL1), PF6- (IL2), and Tf2N- (IL3).
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The yield in PDTBT film increased with increasing viscosity of the IL (or anion type): IL2 (PF6-) < IL1 (BF4-) < IL3 (Tf2N-).
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PDTBT molecules with greater degree of conjugation formed in the hydrophobic ILs (IL2, IL3) than in the hydrophilic one (IL1).
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IL3, the least viscous and most conductive of these ILs, resulted in electrochromically outstanding PDTBT/IL pair at 1000 nm.