Optical and electrical properties of a squaraine dye in photovoltaic cells

被引:52
作者
Chen, Guo [1 ,2 ]
Yokoyama, Daisuke [1 ,2 ]
Sasabe, Hisahiro [1 ,2 ]
Hong, Ziruo [1 ,2 ]
Yang, Yang [3 ]
Kido, Junji [1 ,2 ]
机构
[1] Yamagata Univ, Dept Organ Device Engn, Grad Sch Engn, Yonezawa, Yamagata 9928510, Japan
[2] Yamagata Univ, Res Ctr Organ Elect ROEL, Yonezawa, Yamagata 9928510, Japan
[3] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
基金
日本科学技术振兴机构;
关键词
HETEROJUNCTION SOLAR-CELLS; EFFICIENCY; DONORS;
D O I
10.1063/1.4747623
中图分类号
O59 [应用物理学];
学科分类号
摘要
2,4-Bis[4-(N,N-diisobutylamino)-2,6-dihydroxyphenyl] squaraine (SQ) was employed as a donor material in organic photovoltaic cells based on planar heterojunctions. We studied optical properties of SQ films, and discussed its photovoltaic performance via numerical fitting and simulation on the photovoltaic cells. Exciton diffusion length (L-D) in SQ films (4.5 nm) derived from optical simulation should be the major limitation to efficiency, consistent with external quantum efficiency data. Thermal treatment improved efficiency, which can be ascribed to reduced saturation current of the photovoltaic cells. As a result, a power conversion efficiency of 4.1% was achieved. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4747623]
引用
收藏
页数:4
相关论文
共 28 条
[1]   Device physics of polymer:fullerene bulk heterojunction solar cells [J].
Blom, Paul W. M. ;
Mihailetchi, Valentin D. ;
Koster, L. Jan Anton ;
Markov, Denis E. .
ADVANCED MATERIALS, 2007, 19 (12) :1551-1566
[2]   Co-Evaporated Bulk Heterojunction Solar Cells with >6.0% Efficiency [J].
Chen, Guo ;
Sasabe, Hisahiro ;
Wang, Zhongqiang ;
Wang, Xiao-Feng ;
Hong, Ziruo ;
Yang, Yang ;
Kido, Junji .
ADVANCED MATERIALS, 2012, 24 (20) :2768-2773
[3]   Organic tandem solar cells with complementary absorbing layers and a high open-circuit voltage [J].
Cheyns, D. ;
Rand, B. P. ;
Heremans, P. .
APPLIED PHYSICS LETTERS, 2010, 97 (03)
[4]   Nanostructure and Optoelectronic Characterization of Small Molecule Bulk Heterojunction Solar Cells by Photoconductive Atomic Force Microscopy [J].
Dang, Xuan-Dung ;
Tamayo, Arnold B. ;
Seo, Junghwa ;
Hoven, Corey V. ;
Walker, Bright ;
Nguyen, Thuc-Quyen .
ADVANCED FUNCTIONAL MATERIALS, 2010, 20 (19) :3314-3321
[5]   Aggregation-dependent photovoltaic properties of squaraine/PC61BM bulk heterojunctions [J].
Deing, Kaja C. ;
Mayerhoeffer, Ulrich ;
Wuerthner, Frank ;
Meerholz, Klaus .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2012, 14 (23) :8328-8334
[6]  
Gray J. L., 2011, HDB PHOTOVOLTAIC SCI, P122
[7]   Small molecular organic photovoltaic cells with exciton blocking layer at anode interface for improved device performance [J].
Hirade, Masaya ;
Adachi, Chihaya .
APPLIED PHYSICS LETTERS, 2011, 99 (15)
[8]   Spin-Coated Small Molecules for High Performance Solar Cells [J].
Liu, Yongsheng ;
Wan, Xiangjian ;
Wang, Fei ;
Zhou, Jiaoyan ;
Long, Guankui ;
Tian, Jianguo ;
You, Jingbi ;
Yang, Yang ;
Chen, Yongsheng .
ADVANCED ENERGY MATERIALS, 2011, 1 (05) :771-775
[9]   Organic p-i-n solar cells [J].
Maennig, B ;
Drechsel, J ;
Gebeyehu, D ;
Simon, P ;
Kozlowski, F ;
Werner, A ;
Li, F ;
Grundmann, S ;
Sonntag, S ;
Koch, M ;
Leo, K ;
Pfeiffer, M ;
Hoppe, H ;
Meissner, D ;
Sariciftci, NS ;
Riedel, I ;
Dyakonov, V ;
Parisi, J .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2004, 79 (01) :1-14
[10]   Enhanced hole injection and transport in molybdenum-dioxide-doped organic hole-transporting layers [J].
Matsushima, Toshinori ;
Adachi, Chihaya .
JOURNAL OF APPLIED PHYSICS, 2008, 103 (03)