Squaraine Planar-Heterojunction Solar Cells

被引:25
作者
Fan, Bin [1 ]
Maniglio, Ylenia [1 ]
Simeunovic, Marina [1 ]
Kuster, Simon [1 ]
Geiger, Thomas [1 ]
Hany, Roland [1 ]
Nueesch, Frank [1 ]
机构
[1] EMPA, Swiss Fed Labs Mat Testing & Res, CH-8600 Dubendorf, Switzerland
关键词
NANOCRYSTALLINE TIO2 FILMS; NEAR-IR SENSITIZATION; EFFICIENT FAR-RED; UNSYMMETRICAL SQUARAINES; OPTICAL-PROPERTIES; DYE SENSITIZATION; PERFORMANCE;
D O I
10.1155/2009/581068
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
The photovoltaic performance of squaraine-based organic solar cells is investigated. Two squaraine derivatives with extraordinarily high extinction coefficients are used as electron donors in bilayer heterojunctions with fullerene C-60 as electron acceptor. Due to the very strong squaraine absorption band in the red spectral domain, antibatic behavior due to light filtering is observed in the photocurrent spectrum for film thicknesses of 35 nm to 40 nm. At reduced film thicknesses of 20 nm, this filtering effect at maximum absorption can be alleviated and power conversion efficiencies under simulated AM 1.5 full sun irradiation of 0.59% and 1.01% are obtained for the two squaraine derivatives, respectively. The photovoltaic properties of these cells are investigated with respect to electrode materials and chemical doping.
引用
收藏
页数:7
相关论文
共 32 条
[1]   Dye sensitization of nanocrystalline TiO2:: enhanced efficiency of unsymmetrical versus symmetrical squaraine dyes [J].
Alex, S ;
Santhosh, U ;
Das, S .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2005, 172 (01) :63-71
[2]   A novel blue dye for near-IR 'dye-sensitised' solar cell applications [J].
Burke, Anthony ;
Schmidt-Mende, Lukas ;
Ito, Seigo ;
Gratzel, Michael .
CHEMICAL COMMUNICATIONS, 2007, (03) :234-236
[3]   ORGANIC SOLAR-CELLS - A REVIEW [J].
CHAMBERLAIN, GA .
SOLAR CELLS, 1983, 8 (01) :47-83
[4]   SYNTHESES AND LINEAR AND NONLINEAR-OPTICAL PROPERTIES OF UNSYMMETRICAL SQUARAINES WITH EXTENDED CONJUGATION [J].
CHEN, CT ;
MARDER, SR ;
CHENG, LT .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1994, 116 (07) :3117-3118
[5]   Analytical model for the open-circuit voltage and its associated resistance in organic planar heterojunction solar cells [J].
Cheyns, D. ;
Poortmans, J. ;
Heremans, P. ;
Deibel, C. ;
Verlaak, S. ;
Rand, B. P. ;
Genoe, J. .
PHYSICAL REVIEW B, 2008, 77 (16)
[6]   Enhanced cyanine solar cell performance upon oxygen doping [J].
Fan, Bin ;
Hany, Roland ;
Moser, Jacques-Edouard ;
Nueesch, Frank .
ORGANIC ELECTRONICS, 2008, 9 (01) :85-94
[7]  
GEIGER T, 2007, ADV FUNCTIONAL MAT, V19, P734
[8]   Poly(3-hexylthiophene)/C60 heterojunction solar cells:: Implication of morphology on performance and ambipolar charge collection [J].
Geiser, Alain ;
Fan, Bin ;
Benmansour, Hadjar ;
Castro, Fernando ;
Heier, Jakob ;
Keller, Beat ;
Mayerhofer, Karl Emanuel ;
Nueesch, Frank ;
Hany, Roland .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2008, 92 (04) :464-473
[9]   Coulomb forces and doping in organic semiconductors [J].
Gregg, BA ;
Chen, SG ;
Cormier, RA .
CHEMISTRY OF MATERIALS, 2004, 16 (23) :4586-4599
[10]   INTERACTION OF SEMICONDUCTOR COLLOIDS WITH J-AGGREGATES OF A SQUARAINE DYE AND ITS ROLE IN SENSITIZING NANOCRYSTALLINE SEMICONDUCTOR-FILMS [J].
HOTCHANDANI, S ;
DAS, S ;
THOMAS, KG ;
GEORGE, MV ;
KAMAT, PV .
RESEARCH ON CHEMICAL INTERMEDIATES, 1994, 20 (09) :927-938