Influence of Sodium Cations of N3 Dye on the Photovoltaic Performance and Stability of Dye-Sensitized Solar Cells

被引：41

作者：

Andrade, Luisa ^{[2
]}

Zakeeruddin, Shaik M. ^{[1
]}

Nazeeruddin, Mohammad K. ^{[1
]}

Ribeiro, Helena Aguilar ^{[2
]}

Mendes, Adelio ^{[2
]}

Graetzel, Michael ^{[1
]}

机构：

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

[2] Univ Porto, Lab Proc Environm & Energy Engn, Dept Chem Engn, Fac Engn, P-4200465 Oporto, Portugal

来源：

CHEMPHYSCHEM | 2009年 / 10卷 / 07期

关键词：

dyes/pigments; electrochemical impedance spectroscopy; electron transport; photochemistry; solar cells; CHARGE-TRANSFER SENSITIZERS; NANOCRYSTALLINE TIO2; HIGH-EFFICIENCY; TITANIUM-DIOXIDE; MOLECULAR PHOTOVOLTAICS; ELECTRICAL-IMPEDANCE; CONVERSION; RECOMBINATION; COMPLEXES; TRANSPORT;

D O I：

10.1002/cphc.200900111

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：

We report on the effect of substituting the two tetrabutyl ammonium counter ions of the standard N719 dye by sodium ions on the performance and stability of dye-sensitized solar cells (DSCs). The disodium analogue of N719 in conjunction with a non-volatile electrolyte gives a conversion efficiency of 7.6% under standard global AM 1.5 sunlight. Devices maintain 99% of their initial performance after 1000 h under full sun-light aging at 50 degrees C. Electrochemical impedance spectroscopy and photovoltage transient decay studies reveal the evolution of the solar cell parameters during aging. Remarkably, upon aging a decrease in the rate of electron back reaction with the triiodide ions across the TiO2/electrolyte interface appears as well as enhanced electronic conduction in the TiO2 film.

引用

页码：1117 / 1124

页数：8

共 46 条

[1] Highly efficient dye-sensitized solar cells with a titania thin-film electrode composed of a network structure of single-crystal-like TiO2 nanowires made by the "oriented attachment" mechanism
Adachi, M
Murata, Y
Takao, J
Jiu, JT
Sakamoto, M
Wang, FM
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (45) : 14943 - 14949
[2] DESIGN OF ANTENNA-SENSITIZER POLYNUCLEAR COMPLEXES - SENSITIZATION OF TITANIUM-DIOXIDE WITH [RU(BPY)2(CN)2]2RU(BPY(COO)2)22-
AMADELLI, R
ARGAZZI, R
BIGNOZZI, CA
SCANDOLA, F
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1990, 112 (20) : 7099 - 7103
[3] ENHANCED SPECTRAL SENSITIVITY FROM RUTHENIUM(II) POLYPYRIDYL BASED PHOTOVOLTAIC DEVICES
ARGAZZI, R
BIGNOZZI, CA
HEIMER, TA
CASTELLANO, FN
MEYER, GJ
[J]. INORGANIC CHEMISTRY, 1994, 33 (25) : 5741 - 5749
[4] Barsoukov E, 2005, IMPEDANCE SPECTROSCOPY: THEORY, EXPERIMENT, AND APPLICATIONS, 2ND EDITION, P1, DOI 10.1002/0471716243
[5] Bisquert J, 2002, J PHYS CHEM B, V106, P325, DOI 10.1021/jp01194lg
[6] 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
Bisquert, J
Zaban, A
Greenshtein, M
Mora-Seró, I
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (41) : 13550 - 13559
[7] Chemical capacitance of nanostructured semiconductors: its origin and significance for nanocomposite solar cells
Bisquert, J
[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2003, 5 (24) : 5360 - 5364
[8] Interpretation of the time constants measured by kinetic techniques in nanostructured semiconductor electrodes and dye-sensitized solar cells
Bisquert, J
Vikhrenko, VS
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (07) : 2313 - 2322
[9] Doubling exponent models for the analysis of porous film electrodes by impedance.: Relaxation of TiO2 nanoporous in aqueous solution
Bisquert, J
Garcia-Belmonte, G
Fabregat-Santiago, F
Ferriols, NS
Bogdanoff, P
Pereira, EC
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (10) : 2287 - 2298
[10] Hydrophobic, highly conductive ambient-temperature molten salts
Bonhote, P
Dias, AP
Papageorgiou, N
Kalyanasundaram, K
Gratzel, M
[J]. INORGANIC CHEMISTRY, 1996, 35 (05) : 1168 - 1178

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