Bimolecular recombination in polymer/fullerene bulk heterojunction solar cells

被引：489

作者：

Koster, LJA

Mihailetchi, VD

Blom, PWM

机构：

[1] Univ Groningen, Mat Sci Ctr Plus, NL-9747 AG Groningen, Netherlands

[2] Univ Groningen, Dutch Polymer Inst, NL-9747 AG Groningen, Netherlands

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 05期

关键词：

16;

D O I：

10.1063/1.2170424

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Bimolecular recombination in organic semiconductors is known to follow the Langevin expression, i.e., the rate of recombination depends on the sum of the mobilities of both carriers. We show that this does not hold for polymer/fullerene bulk heterojunction solar cells. The voltage dependence of the photocurrent reveals that the recombination rate in these blends is determined by the slowest charge carrier only, as a consequence of the confinement of both types of carriers to two different phases.(c) 2006 American Institute of Physics.

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页码：1 / 3

页数：3

相关论文

共 17 条

[1]

Brabec CJ, 2001, ADV FUNCT MATER, V11, P15, DOI 10.1002/1616-3028(200102)11:1<15::AID-ADFM15>3.0.CO

[2]

2-A

[3] ELECTRIC-FIELD ASSISTED DISSOCIATION OF CHARGE-TRANSFER STATES AS A MECHANISM OF PHOTOCARRIER PRODUCTION [J].

BRAUN, CL .

JOURNAL OF CHEMICAL PHYSICS, 1984, 80 (09) :4157-4161

[4] Correlation between structural and optical properties of composite polymer/fullerene films for organic solar cells [J].

Erb, T ;

Zhokhavets, U ;

Gobsch, G ;

Raleva, S ;

Stühn, B ;

Schilinsky, P ;

Waldauf, C ;

Brabec, CJ .

ADVANCED FUNCTIONAL MATERIALS, 2005, 15 (07) :1193-1196

[5] FIELD DEPENDENT LOSSES OF ELECTRONS AND HOLES BY BIOMOLECULAR VOLUME RECOMBINATION IN EXCITATION LAYER OF ANTHRACENE SINGLE CRYSTALS STUDIED BY DRIFT CURRENT PULSES [J].

KARL, N ;

SOMMER, G .

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1971, 6 (01) :231-&

[6] Device annealing effect in organic solar cells with blends of regioregular poly(3-hexylthiophene) and soluble fullerene [J].

Kim, Y ;

Choulis, SA ;

Nelson, J ;

Bradley, DDC ;

Cook, S ;

Durrant, JR .

APPLIED PHYSICS LETTERS, 2005, 86 (06) :1-3

[7] Device model for the operation of polymer/fullerene bulk heterojunction solar cells [J].

Koster, LJA ;

Smits, ECP ;

Mihailetchi, VD ;

Blom, PWM .

PHYSICAL REVIEW B, 2005, 72 (08)

[8]

Langevin P, 1903, ANN CHIM PHYS, V28, P433

[9] High-efficiency solution processable polymer photovoltaic cells by self-organization of polymer blends [J].

Li, G ;

Shrotriya, V ;

Huang, JS ;

Yao, Y ;

Moriarty, T ;

Emery, K ;

Yang, Y .

NATURE MATERIALS, 2005, 4 (11) :864-868

[10] Thermally stable, efficient polymer solar cells with nanoscale control of the interpenetrating network morphology [J].

Ma, WL ;

Yang, CY ;

Gong, X ;

Lee, K ;

Heeger, AJ .

ADVANCED FUNCTIONAL MATERIALS, 2005, 15 (10) :1617-1622