Bis(1,1-bis(2-pyridyl)ethane)copper(I/II) as an efficient redox couple for liquid dye-sensitized solar cells

被引：60

作者：

Cong, Jiayan ^{[1
]}

Kinschel, Dominik ^{[1
,2
]}

Daniel, Quentin ^{[3
]}

Safdari, Majid ^{[1
]}

Gabrielsson, Erik ^{[2
]}

Chen, Hong ^{[3
]}

Svensson, Per H. ^{[3
,4
]}

Sun, Licheng ^{[3
,5
]}

Kloo, Lars ^{[1
]}

机构：

[1] KTH Royal Inst Technol, Dept Chem, Sch Chem Sci & Engn, Appl Phys Chem, Teknikringen 34, SE-10044 Stockholm, Sweden

[2] Dyenamo AB, Greenhouse Labs, Teknikringen 38A, SE-11428 Stockholm, Sweden

[3] KTH Royal Inst Technol, Sch Chem Sci & Engn, Organ Chem, Dept Chem, Teknikringen 30, SE-10044 Stockholm, Sweden

[4] SP Proc Dev, Forskargatan, SE-15121 Sodertalje, Sweden

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

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2016年 / 4卷 / 38期

基金：

瑞典研究理事会;

关键词：

MEDIATORS;

D O I：

10.1039/c6ta06782d

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 new redox couple, [Cu(bpye)(2)](+/2+), has been synthesized, and applied in dye-sensitized solar cells (DSSCs). Overall efficiencies of 9.0% at 1 sun and 9.9% at 0.5 sun were obtained, which are considerably higher than those obtained for cells containing the reference redox couple, [Co(bpy)(3)](2+/3+). These results represent a record for copper-based complex redox systems in liquid DSSCs. Fast dye regeneration, sluggish recombination loss processes, faster electron self-exchange reactions and suitable redox potentials are the main reasons for the observed increase in efficiency. In particular, the main disadvantage of cobalt complex-based redox couples, charge-transport problems, appears to be resolved by a change to copper complex redox couples. The results make copper complex-based redox couples very promising for further development of highly efficient DSSCs.

引用

页码：14550 / 14554

页数：5

共 18 条

[1] High-efficiency organic dye-sensitized mesoscopic solar cells with a copper redox shuttle [J].