Electrochemical Grafting of Poly(3,4-ethylenedioxythiophene) into a Titanium Dioxide Nanotube Host Network

被引：27

作者：

Janaky, Csaba ^{[1
]}

Bencsik, Gabor ^{[1
]}

Racz, Arpad ^{[1
]}

Visy, Csaba ^{[1
]}

de Tacconi, Norma R. ^{[2
]}

Chanmanee, Wilaiwan ^{[2
]}

Rajeshwar, Krishnan ^{[2
]}

机构：

[1] Univ Szeged, Dept Phys Chem & Mat Sci, H-6720 Szeged, Hungary

[2] Univ Texas Arlington, Dept Chem & Biochem, Arlington, TX 76019 USA

来源：

LANGMUIR | 2010年 / 26卷 / 16期

关键词：

HETEROJUNCTION SOLAR-CELLS; CONJUGATED POLYMERS; PHOTOVOLTAIC CELLS; UV POLYMERIZATION; PEDOT FILMS; ARRAY; THIN; POLYPYRROLE; ELECTRODE; BEHAVIOR;

D O I：

10.1021/la101300n

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This study focuses on eleetrodeposition for infiltrating in situ a conducting polymer such as poly(3,4-ethylenedioxythiophene) (PEDOT) into a host titanium dioxide (TiO2) nanotube array (NTA) framework. The TiO2 NTA was electrosynthesized on titanium foil in turn by anodization in a fluoride-containing medium. The PEDOT layer was electrografted into the TiO2 NTA framework using a two-step potentiostatic growth protocol in acetonitrile containing supporting electrolyte. The nanoscopic features of oligomer/polymer infiltration and deposition in the NTA interstitial voids were monitored by field-emission scanning electron microscopy. Systematic changes in the nanotube inner diameter and the wall thickness afforded insights into the evolution of the TiO(2)NTA/PEDOT hybrid assembly. This assembly was subsequently characterized by UV-visible diffuse reflectance, cyclic voltammetry, and photoelectrochemical measurements. These data serve as a prelude to further use of these hybrids in heterojunction solar cells.

引用

页码：13697 / 13702

页数：6

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