Impedance measurements of nanoporosity in electrodeposited ZnO films for DSSC

被引：26

作者：

Dupuy, L. ^{[2
]}

Haller, S. ^{[2
]}

Rousset, J. ^{[2
]}

Donsanti, F. ^{[2
]}

Guillemoles, J. -F. ^{[2
]}

Lincot, D. ^{[2
]}

Decker, F. ^{[1
]}

机构：

[1] Univ Roma La Sapienza, Dept Chem, I-00185 Rome, Italy

[2] EDF CNRS Chim Paristech, UMR 7174, Inst R&D Photovolta Energy IRDEP, F-78400 Chatou, France

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2010年 / 12卷 / 05期

关键词：

ZnO; Electrodeposited porous films; DSSC; Impedance measurements; SENSITIZED SOLAR-CELLS; HYBRID THIN-FILMS; ELECTRON-TRANSPORT; POROUS-ELECTRODES; PERFORMANCE; LEVIE; MODEL;

D O I：

10.1016/j.elecom.2010.03.009

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Porous ZnO/dye hybrid films have been deposited by cathodic electrodeposition, and their active surface area after dye desorption was evaluated by impedance measurements with the semiconducting electrode polarized in accumulation. Surface area ratios have been deduced for a large number of films from imaginary part Z '' vs. frequency measurements, having a constant rate over the frequency range from 0.5 Hz to >50 Hz. The active surface increased by a factor of roughly 150 per every micron of film with respect to the area of a flat ZnO electrode: this linear relationship held from less than 1 pm up to 9 pm thick films. (c) 2010 Elsevier B.V. All rights reserved.

引用

页码：697 / 699

页数：3

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