Two Redox Couples are Better Than One: Improved Current and Fill Factor from Cobalt-Based Electrolytes in Dye-Sensitized Solar Cells

被引：13

作者：

Cong, Jiayan ^{[1
]}

Hao, Yan ^{[2
]}

Sun, Licheng ^{[3
,4
]}

Kloo, Lars ^{[1
]}

机构：

[1] KTH Royal Inst Technol, Dept Chem, Sch Chem Sci & Engn, S-10044 Stockholm, Sweden

[2] Uppsala Univ, Dept Chem, Angstrom Lab, S-75120 Uppsala, Sweden

[3] KTH Royal Inst Technol, Dept Chem, Sch Chem Sci & Engn, S-10044 Stockholm, Sweden

[4] Dalian Univ Technol, DUT KTH Joint Educ & Res Ctr Mol Devices, State Key Lab Fine Chem, Dalian 116024, Peoples R China

来源：

ADVANCED ENERGY MATERIALS | 2014年 / 4卷 / 08期

基金：

瑞典研究理事会;

关键词：

RUTHENIUM SENSITIZERS; MASS-TRANSPORT; TIO2; FILMS; EFFICIENCY; MEDIATOR;

D O I：

10.1002/aenm.201301273

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：

A tandem redox strategy is used in cobalt-based electrolytes. Co(bpy) 32+/Co(bpy)33+ offers a high photovoltage at the photoanode, whereas the I-/I3 - or Fc/Fc+ redox couples facilitate charge transfer at the counter electrode. Electron exchange in the electrolyte offers beneficial concentration gradients. The overall conversion efficiency is improved from 6.5% to 7.5%. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页数：6