Enhanced performance of a dye-sensitized solar cell with an electrodeposited-platinum counter electrode

被引：217

作者：

Yoon, Chang Ho ^{[1
]}

Vittal, R. ^{[1
]}

Lee, Jiwon ^{[2
]}

Chae, Won-Seok ^{[3
]}

Kim, Kang-Jin ^{[1
]}

机构：

[1] Korea Univ, Dept Chem, Seoul 136713, South Korea

[2] Samsung SDI Co Ltd, Gyeonggi Do 449577, South Korea

[3] Daejin Univ, Dept Chem, Pochon 487711, Gyounggi Do, South Korea

来源：

ELECTROCHIMICA ACTA | 2008年 / 53卷 / 06期

关键词：

electrodeposited-Pt counter electrode; thermal and sputter depositions; active surface area; charge transfer resistance; dye-sensitized solar cell;

D O I：

10.1016/j.electacta.2007.10.074

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A counter electrode was prepared for a dye-sensitized solar cell (DSSC) through electrochemical deposition of mesoporous platinum on fluorine-doped tin oxide glass in the presence of a structure-directing nonionic surfactant, octaethylene glycol monohexadecyl ether (C16EO8). The DSSC fabricated with the electrochemically deposited Pt (ED-Pt) counter electrode tendered a higher solar-to-electricity conversion efficiency of 7.6%, compared with approximately 6.4% of the cells fabricated with the sputter-deposited or most commonly-employed thermal deposited Pt counter electrodes. This enhanced efficiency is attributed to the higher short-circuit photocurrent arising from the increases in the active surface area and light reflection as well as the decrease in the sheet resistance of the ED-Pt film, relative to those of the Pt films prepared by the other two deposition methods. The sputter-deposited Pt film yielded almost the same photovoltaic characteristics as the thermal deposited Pt film. The Pt films were characterized by FE-SEM, AFM, cyclic voltammetry, chronoamperometry, electrochemical impedance spectroscopy, sheet resistance measurements, adhesion tests, and light reflection tests. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：2890 / 2896

页数：7

共 24 条

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