Thermally stable, efficient polymer solar cells with nanoscale control of the interpenetrating network morphology

被引:4276
作者
Ma, WL [1 ]
Yang, CY [1 ]
Gong, X [1 ]
Lee, K [1 ]
Heeger, AJ [1 ]
机构
[1] Univ Calif Santa Barbara, Inst Polymers & Organ Solids, Santa Barbara, CA 93106 USA
关键词
D O I
10.1002/adfm.200500211
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
By applying the specific fabrication conditions summarized in the Experimental section and post-production annealing at 150 degrees C, polymer solar cells with power-conversion efficiency approaching 5 % are demonstrated. These devices exhibit remarkable thermal stability. We attribute the improved performance to changes in the bulk heterojunction material induced by thermal annealing. The improved nanoscale morphology, the increased crystallinity of the semiconducting polymer, and the improved contact to the electron-collecting electrode facilitate charge generation, charge transport to, and charge collection at the electrodes, thereby enhancing the device efficiency by lowering the series resistance of the polymer solar cells.
引用
收藏
页码:1617 / 1622
页数:6
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共 33 条
[21]  
LOGDLUND M, 1994, J CHEM PHYS, V101, P4357, DOI 10.1063/1.467486
[22]   Effects of postproduction treatment on plastic solar cells [J].
Padinger, F ;
Rittberger, RS ;
Sariciftci, NS .
ADVANCED FUNCTIONAL MATERIALS, 2003, 13 (01) :85-88
[23]   Modeling photocurrent action spectra of photovoltaic devices based on organic thin films [J].
Pettersson, LAA ;
Roman, LS ;
Inganäs, O .
JOURNAL OF APPLIED PHYSICS, 1999, 86 (01) :487-496
[24]   Efficient bulk heterojunction photovoltaic cells using small-molecular-weight organic thin films [J].
Peumans, P ;
Uchida, S ;
Forrest, SR .
NATURE, 2003, 425 (6954) :158-162
[25]   Influence of electronic transport properties of polymer-fullerene blends on the performance of bulk heterojunction photovoltaic devices [J].
Riedel, I ;
Dyakonov, V .
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2004, 201 (06) :1332-1341
[26]   Influence of the solvent on the crystal structure of PCBM and the efficiency of MDMO-PPV:PCBM 'plastic' solar cells [J].
Rispens, MT ;
Meetsma, A ;
Rittberger, R ;
Brabec, CJ ;
Sariciftci, NS ;
Hummelen, JC .
CHEMICAL COMMUNICATIONS, 2003, (17) :2116-2118
[27]   Recombination and loss analysis in polythiophene based bulk heterojunction photodetectors [J].
Schilinsky, P ;
Waldauf, C ;
Brabec, CJ .
APPLIED PHYSICS LETTERS, 2002, 81 (20) :3885-3887
[28]   Simulation of light intensity dependent current characteristics of polymer solar cells [J].
Schilinsky, P ;
Waldauf, C ;
Hauch, J ;
Brabec, CJ .
JOURNAL OF APPLIED PHYSICS, 2004, 95 (05) :2816-2819
[29]   2.5% efficient organic plastic solar cells [J].
Shaheen, SE ;
Brabec, CJ ;
Sariciftci, NS ;
Padinger, F ;
Fromherz, T ;
Hummelen, JC .
APPLIED PHYSICS LETTERS, 2001, 78 (06) :841-843
[30]   High-performance polymer solar cells of an alternating polyfluorene copolymer and a fullerene derivative [J].
Svensson, M ;
Zhang, FL ;
Veenstra, SC ;
Verhees, WJH ;
Hummelen, JC ;
Kroon, JM ;
Inganäs, O ;
Andersson, MR .
ADVANCED MATERIALS, 2003, 15 (12) :988-+