Poly(3,4-ethylenedioxythiophene) (PEDOT)-coated MWCNTs tethered to conducting substrates: facile electrochemistry and enhanced coloring efficiency
Poly(3,4-ethylenedioxythiophene) (PEDOT)-coated MWCNTs tethered to conducting substrates: facile electrochemistry and enhanced coloring efficiency
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DOI：
10.1002/marc.200800550
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发表时间：
2008-12
影响因子：
4.6
通讯作者：
S. Bhandari;M. Deepa;A. Srivastava;C. Lal;R. Kant
中科院分区：
文献类型：
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作者：
S. Bhandari;M. Deepa;A. Srivastava;C. Lal;R. Kant
通过简单的氧化电聚合方法制备了聚（3，4-乙撑二氧噻吩）（PEDOT）包覆在功能化的多壁螺旋状和线状碳纳米管（CNTs）上的复合膜。聚合物-CNT复合物的纳米管形态是与由三氟甲磺酸根离子掺杂的对照PEDOT膜所示的相比，较低的电荷转移阻抗、较低的内阻和上级电容响应的原因。PEDOT-CNT复合膜所表现出的这种容易的电化学在550 nm处实现了迄今为止PEDOT未实现的367 cm 2· C-1的非常高的着色效率;因此证明了PEDOT-CNT复合膜作为电致变色装置的整个光谱的阴极所具有的巨大潜力。
Composite films of poly(3,4-ethylenedioxythiophene) (PEDOT)-coated over functionalized multiwalled coiled and linear carbon nanotubes (CNTs) have been fabricated by a simple oxidative electropolymerization route. The nanotubular morphology of the polymer–CNT composite is responsible for the lower charge transfer impedance, lower internal resistance, and superior capacitive response in comparison to that shown by the control PEDOT film doped by trifluoromethanesulfonate ions. This facile electrochemistry exhibited by the PEDOT–CNT composite film ensues in a remarkably high coloration efficiency of 367 cm2 · C−1 at 550 nm, hitherto unrealized for PEDOT; thus demonstrating the huge potential the PEDOT–CNT composite film has as cathode for the entire spectrum of electrochromic devices.