Preparation of porous titanium oxide films onto indium tin oxide for application in organic photovoltaic devices

被引：5

作者：

Macedo, Andreia G. ^{[1
]}

Mattos, Luana L. ^{[2
]}

Spada, Edna R. ^{[2
]}

Serpa, Rafael B. ^{[2
]}

Campos, Cristiani S. ^{[2
]}

Grova, Isabel R. ^{[3
]}

Ackcelrud, Leni ^{[3
]}

Reis, Francoise T. ^{[2
]}

Sartorelli, Maria L. ^{[2
]}

Roman, Lucimara S. ^{[1
]}

机构：

[1] Univ Fed Parana, Dept Fis, Lab Disposit Nanoestruturados, BR-80060000 Curitiba, Parana, Brazil

[2] Univ Fed Santa Catarina, Dept Fis, Lab Sistemas Nanoestruturados, Florianopolis, SC, Brazil

[3] Univ Fed Parana, Dept Quim, Lab Polimeros Paulo Scarpa, BR-80060000 Curitiba, Parana, Brazil

来源：

APPLIED SURFACE SCIENCE | 2012年 / 258卷 / 14期

关键词：

Porous titanium oxide; Organic photovoltaic; THIN-FILMS; TIO2; ARCHITECTURE; ARRAYS; CELLS;

D O I：

10.1016/j.apsusc.2012.02.013

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：

In this work, porous ordered TiO2 films were prepared through sol gel route by using a monolayer of polystyrene spheres as template on indium-tin oxide/glass substrate. These films were characterized by SEM, AFM, Raman spectroscopy, UV-vis absorbance and XRD. The UV-vis absorbance spectrum show a pseudo band gap (PBG) with maxima at 460 nm arising from the light scattering and partial or total suppression of the photon density of states, this PBG can be controlled by the size of the pore. We also propose the use of this porous film as electron acceptor electrode in organic photovoltaic cells; we show that devices prepared with porous titania displayed higher efficiencies than devices using compact titania films as electrode. Such behaviour was observed in both bilayer and bulk heterojunction devices. (C) 2012 Elsevier B. V. All rights reserved.

引用

页码：5375 / 5379

页数：5

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