Photophysical studies on D-π-A dye-sensitized solar cells: Effects of π-bridge and hexyloxy side chains in donor moieties

被引：10
作者：
Lin, Hao-Wu [1 ]
Wang, Yu-Shih [1 ]
Yang, Po-Fan [1 ]
Wong, Ken-Tsung [2 ]
Lin, Li-Yen [2 ]
Lin, Francis [2 ]
机构：
[1] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 30013, Taiwan
[2] Natl Taiwan Univ, Dept Chem, Taipei 10617, Taiwan
来源：
ORGANIC ELECTRONICS | 2013年 / 14卷 / 04期
关键词：
Dye sensitized solar cells; D-pi-A dyes; Electron injection; Carrier recombination; Dye regeneration; ELECTRON INJECTION EFFICIENCY; NANOCRYSTALLINE TIO2; ORGANIC-DYE; PANCHROMATIC SENSITIZATION; PHOTOVOLTAIC PROPERTIES; CHARGE RECOMBINATION; RUTHENIUM SENSITIZER; PERFORMANCE; FILMS; REGENERATION;
D O I：
10.1016/j.orgel.2013.02.002
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The D-pi-A organic dyes which feature diphenylthienylamines as the donors and cyanoacrylic acid as the acceptors, are carefully examined. Comprehensive spectral response analysis and transient techniques are exploited to investigate the effects of various functionalized pi-bridge and hexyloxy side chains in donor moieties on carrier injection efficiencies, electron diffusion length and dye-regeneration efficiencies. Retarded charge recombination of e(TiO2)-/electrolytes(+) is found in molecules with the hexyloxy chains and diphenyl-substituted dithienosilole groups. However, regeneration rate is revealed as being slower with the larger sensitizer structure and the higher HOMO levels. A clear trade-off between charge recombination and dye regeneration is found and should be taken into account in future molecular designs of D-pi-A dyes. (c) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：1037 / 1044
页数：8
相关论文
共 67 条
[11]   HIGHLY EFFICIENT SENSITIZATION OF TITANIUM-DIOXIDE [J].
DESILVESTRO, J ;
GRATZEL, M ;
KAVAN, L ;
MOSER, J ;
AUGUSTYNSKI, J .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1985, 107 (10) :2988-2990
[12]   Enhance the optical absorptivity of nanocrystalline TiO2 film with high molar extinction coefficient ruthenium sensitizers for high performance dye-sensitized solar cells [J].
Gao, Feifei ;
Wang, Yuan ;
Shi, Dong ;
Zhang, Jing ;
Wang, Mingkui ;
Jing, Xiaoyan ;
Humphry-Baker, Robin ;
Wang, Peng ;
Zakeeruddin, Shaik M. ;
Graetzel, Michael .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (32) :10720-10728
[13]  
Gao FF, 2008, CHEM COMMUN, P2635, DOI 10.1039/b802909a
[14]   Photoelectrochemical cells [J].
Grätzel, M .
NATURE, 2001, 414 (6861) :338-344
[15]   Charge transport versus recombination in dye-sensitized solar cells employing nanocrystalline TiO2 and SnO2 films [J].
Green, ANM ;
Palomares, E ;
Haque, SA ;
Kroon, JM ;
Durrant, JR .
JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (25) :12525-12533
[16]   A novel organic chromophore for dye-sensitized nanostructured solar cells [J].
Hagberg, Daniel P. ;
Edvinsson, Tomas ;
Marinado, Tannia ;
Boschloo, Gerrit ;
Hagfeldt, Anders ;
Sun, Licheng .
CHEMICAL COMMUNICATIONS, 2006, (21) :2245-2247
[17]   Spectral characteristics of light harvesting, electron injection, and steady-state charge collection in pressed TiO2 dye solar cells [J].
Halme, Janne ;
Boschloo, Gerrit ;
Hagfeldt, Anders ;
Lund, Peter .
JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (14) :5623-5637
[18]   Advancing beyond current generation dye-sensitized solar cells [J].
Hamann, Thomas W. ;
Jensen, Rebecca A. ;
Martinson, Alex B. F. ;
Van Ryswyk, Hal ;
Hupp, Joseph T. .
ENERGY & ENVIRONMENTAL SCIENCE, 2008, 1 (01) :66-78
[19]   Reducing charge recombination losses in solid state dye sensitized solar cells: the use of donor-acceptor sensitizer dyes [J].
Handa, Samantha ;
Wietasch, Helga ;
Thelakkat, Mukundan ;
Durrant, James R. ;
Haque, Saif A. .
CHEMICAL COMMUNICATIONS, 2007, (17) :1725-1727
[20]   Molecular Design to Improve the Performance of Donor-p Acceptor Near-IR Organic Dye-Sensitized Solar Cells [J].
Hao, Yan ;
Yang, Xichuan ;
Zhou, Meizhen ;
Cong, Jiayan ;
Wang, Xiuna ;
Hagfeldt, Anders ;
Sun, Licheng .
CHEMSUSCHEM, 2011, 4 (11) :1601-1605
1234567