Stable, high-efficiency ionic-liquid-based mesoscopic dye-sensitized solar cells

被引：167

作者：

Kuang, Daibin ^{[1
]}

Klein, Cedric ^{[1
]}

Zhang, Zhipan ^{[1
]}

Ito, Seigo ^{[1
]}

Moser, Jacques-E. ^{[1
]}

Zakeeruddin, Shaik M. ^{[1
]}

Graetzel, Michael ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Inst Chem Sci & Engn, LAb Photon & Interfaces, CH-1015 Lausanne, Switzerland

来源：

SMALL | 2007年 / 3卷 / 12期

关键词：

dyes; ionic liquids; nanocrystals; solar cells;

D O I：

10.1002/smll.200700211

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Efficient and stable mesoscopic dye-sensitized solar cells (DSCs) introducing a low-viscosity binary ionic liquid (1-propyl-3-methyl-imidazolium iodide (PMII) and 1-ethyl-3-methyl-imidazolium tetracyanoborate (EMIB(CN)(4))) electrolyte in combination with a new high-molar-extinction-coefficient ruthenium complex, Ru(2,2'-bipyridine-4,4'-dicarboxylic acid) (4,4'-bis(2-(4-tert-butyloxy-phenyl)ethenyl) -2,2'-bipyridine) (NCS)(2), are demonstrated. The dependence of photovoltaic performance, charge transport and electron lifetime on the composition of the binary ionic-liquid electrolyte with different ratios of PMII/EMIB(CN)(4) were investigated by electrochemical impedance and photovoltage transient techniques. A photovoltaic conversion efficiency of 7.6 % was obtained under simulated full sunlight illumination, which is a record for solvent-free DSCs. These devices exhibit excellent stability at 80 degrees C in the dark or under visible-light soaking at 60 degrees C during 1000 h of accelerated tests.

引用

页码：2094 / 2102

页数：9

共 52 条

[1] Ionic liquids for the convenient synthesis of functional nanoparticles and other inorganic nanostructures [J].

Antonietti, M ;

Kuang, DB ;

Smarsly, B ;

Yong, Z .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (38) :4988-4992

[2]

Antonietti M, 2004, ANGEW CHEM, V116, P5096

[3] Tuning the properties of ruthenium bipyridine dyes for solar cells by substitution on the ligands -: characterisation of bis[4,4′-di(2-(3-methoxyphenyl)ethenyl)-2,2′-bipyridine][4,4′-dicarboxy-2,2′-bipyridine]ruthenium(II) dihexafluorophosphate [J].

Aranyos, V ;

Hjelm, J ;

Hagfeldt, A ;

Grennberg, H .

DALTON TRANSACTIONS, 2003, (07) :1280-1283

[4]

Barbe CJ, 1997, J AM CERAM SOC, V80, P3157, DOI 10.1111/j.1151-2916.1997.tb03245.x

[5] An efficient synthesis for tetracyanoborates by sinter processes [J].

Bernhardt, E ;

Finze, M ;

Willner, H .

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 2003, 629 (7-8) :1229-1234

[6]

Bernhardt E, 2000, Z ANORG ALLG CHEM, V626, P560, DOI 10.1002/(SICI)1521-3749(200002)626:2<560::AID-ZAAC560>3.0.CO

[7]

2-E

[8]

Bisquert J, 2002, J PHYS CHEM B, V106, P325, DOI 10.1021/jp01194lg

[9] Determination of rate constants for charge transfer and the distribution of semiconductor and electrolyte electronic energy levels in dye-sensitized solar cells by open-circuit photovoltage decay method [J].

Bisquert, J ;

Zaban, A ;

Greenshtein, M ;

Mora-Seró, I .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (41) :13550-13559

[10] Chemical capacitance of nanostructured semiconductors: its origin and significance for nanocomposite solar cells [J].

Bisquert, J .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2003, 5 (24) :5360-5364

← 1 2 3 4 5 6 →