Enhanced photoresponses of polypyrrole on surface modified TiO2 with self-assembled monolayers

被引：59

作者：

Senadeera, G. K. R.

Kitamura, T.

Wada, Y.

Yanagida, S.

机构：

[1] Inst Fundamental Studies, Kandy, Sri Lanka

[2] Osaka Univ, Grad Sch Engn, Suita, Osaka 565, Japan

[3] Osaka Univ, Ctr Adv Sci & Innovat, Suita, Osaka 565, Japan

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2006年 / 184卷 / 1-2期

基金：

日本学术振兴会;

关键词：

TiO2; polypyrrole; solid-state photocells; hole transport materials;

D O I：

10.1016/j.jphotochem.2006.04.033

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Photodevices comprising covalently grafted polypyrrole films on surface modified mesoporous TiO2 substrates via 3-(trimethoxysilyl) propyl methacrylate were fabricated and tested their performances with a counter electrode having a thin layer of gold. Significant photoresponses were observed with the addition of an ionic liquid, 1-ethyl-3-methylimidazolium bis-trifluoromethylsulfonyl amide containing 0.2 M LiTf2N and painting a layer of graphite on the surface of PPY The cell TiO2/PPY-C/Au cell delivered a short circuit current of similar to 600 mu A cm(-2) with an open circuit voltage of similar to 500 mV under the irradiation of 100 mW cm(-2) (AM 1.5). The average corresponding fill factors and the efficiencies were 0.51 and similar to 0.2%, respectively. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：234 / 239

页数：6

共 37 条

[1] Solid-state dye-sensitized mesoporous TiO2 solar cells with high photon-to-electron conversion efficiencies [J].