Comparison between positive and negative constant current stress on dye-sensitized solar cells

被引：4

作者：

Bari, D. ^{[1
]}

Wrachien, N. ^{[1
]}

Tagliaferro, R. ^{[2
]}

Brown, T. M. ^{[2
]}

Reale, A. ^{[2
]}

Di Carlo, A. ^{[2
]}

Meneghesso, G. ^{[1
]}

Cester, A. ^{[1
]}

机构：

[1] Univ Padua, Dept Informat Engn, Padua, Italy

[2] Univ Roma Tor Vergata, Dept Elect Engn, CHOSE, Rome, Italy

来源：

MICROELECTRONICS RELIABILITY | 2013年 / 53卷 / 9-11期

关键词：

EFFICIENCY; CONVERSION;

D O I：

10.1016/j.microrel.2013.07.093

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this work, we performed positive and negative constant current stresses (CCS) on dye-sensitized solar cells in the dark with different polarities. We found that positive and negative CCSs have different effects on DC parameters, featuring different degradation rates, depending on intensity of the stress current. In particular, positive CCS leads to the reduction of tri-iodide concentration in the electrolyte, lowering the dark current of the cell. In addition, from impedance measurements, we found that positive CCSs induce the degradation of the TiO2/Dye/electrolyte interface and negative CCSs induce the degradation of Pt counter-electrode surface. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：1804 / 1808

页数：5

共 9 条

[1] Conversion of sunlight to electric power by nanocrystalline dye-sensitized solar cells [J].