Effects of Iodine Content in the Electrolyte on the Charge Transfer and Power Conversion Efficiency of Dye-Sensitized Solar Cells under Low Light Intensities

被引：95

作者：

Lan, Jo-Lin ^{[2
]}

Wei, Tzu-Chien ^{[1
]}

Peng, Shien-Ping ^{[3
]}

Wan, Chi-Chao ^{[1
]}

Cao, Guozhong ^{[2
]}

机构：

[1] Natl Tsing Hua Univ, Dept Chem Engn, Hsinchu, Taiwan

[2] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA

[3] Univ Hong Kong, Dept Mech Engn, Hong Kong, Hong Kong, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2012年 / 116卷 / 49期

关键词：

NANOCRYSTALLINE TIO2 FILMS; LONG-TERM STABILITY; IMPEDANCE; NANOCLUSTERS; PERFORMANCE; IMPROVEMENT; DIFFUSION; CIRCUIT;

D O I：

10.1021/jp309872n

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：

This paper presents a systematic investigation on the effects of iodine content in the electrolyte on electron recombination, charge, and ion transportation to the power conversion performance of dye-sensitized solar cells under lower light intensities. By analyzing the current-voltage behavior and electrochemical impedance spectroscopy results, the effects of iodine content on charge recombination, ion transportation, and light intensity are found to be the major factors. The power conversion efficiency of DSSC under low light intensity can be significantly improved when electrolyte composition is optimized, which results in an exclusive application for indoor use.

引用

页码：25727 / 25733

页数：7

共 36 条

[1]

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

[2] Influence of the boundaries in the impedance of porous film electrodes [J].

Bisquert, J .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2000, 2 (18) :4185-4192

[3] Doubling exponent models for the analysis of porous film electrodes by impedance.: Relaxation of TiO2 nanoporous in aqueous solution [J].

Bisquert, J ;

Garcia-Belmonte, G ;

Fabregat-Santiago, F ;

Ferriols, NS ;

Bogdanoff, P ;

Pereira, EC .

JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (10) :2287-2298

[4] Correlation between photovoltaic performance and impedance spectroscopy of dye-sensitized solar cells based on ionic liquids [J].

Fabregat-Santiago, Francisco ;

Bisquert, Juan ;

Palomares, Emilio ;

Otero, Luis ;

Kuang, Daibin ;

Zakeeruddin, Shaik M. ;

Gratzel, Michael .

JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (17) :6550-6560

[5] Solar energy conversion by dye-sensitized photovoltaic cells [J].

Grätzel, M .

INORGANIC CHEMISTRY, 2005, 44 (20) :6841-6851

[6] Modeling of an equivalent circuit for dye-sensitized solar cells [J].

Han, LY ;

Koide, N ;

Chiba, Y ;

Mitate, T .

APPLIED PHYSICS LETTERS, 2004, 84 (13) :2433-2435

[7] Diffusion in the electrolyte and charge-transfer reaction at the platinum electrode in dye-sensitized solar cells [J].

Hauch, A ;

Georg, A .

ELECTROCHIMICA ACTA, 2001, 46 (22) :3457-3466

[8] Long-term stability of dye-sensitised solar cells [J].

Hinsch, A ;

Kroon, JM ;

Kern, R ;

Uhlendorf, I ;

Holzbock, J ;

Meyer, A ;

Ferber, J .

PROGRESS IN PHOTOVOLTAICS, 2001, 9 (06) :425-438

[9] Impedance analysis of internal resistance affecting the photoelectrochemical performance of dye-sensitized solar cells [J].

Hoshikawa, T ;

Yamada, M ;

Kikuchi, R ;

Eguchi, K .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (02) :E68-E73

[10] Control of dark current in photoelectrochemical (TiO2/I--I3-) and dye-sensitized solar cells [J].

Ito, S ;

Liska, P ;

Comte, P ;

Charvet, RL ;

Péchy, P ;

Bach, U ;

Schmidt-Mende, L ;

Zakeeruddin, SM ;

Kay, A ;

Nazeeruddin, MK ;

Grätzel, M .

CHEMICAL COMMUNICATIONS, 2005, (34) :4351-4353

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