Two dimensional Langevin recombination in regioregular poly(3-hexylthiophene)

被引：65

作者：

Juska, Gytis ^{[1
]}

Genevicius, Kristijonas ^{[1
]}

Nekrasas, Nerijus ^{[1
]}

Sliauzys, Gytis ^{[1
]}

Osterbacka, Ronald ^{[2
,3
]}

机构：

[1] Vilnius Univ, Dept Solid State Elect, LT-10222 Vilnius, Lithuania

[2] Abo Akad Univ, Dept Phys, FI-205000 Turku, Finland

[3] Abo Akad Univ, Ctr Funct Mat, FI-205000 Turku, Finland

来源：

APPLIED PHYSICS LETTERS | 2009年 / 95卷 / 01期

基金：

芬兰科学院;

关键词：

CHARGE-TRANSPORT;

D O I：

10.1063/1.3141513

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this work, it is shown that recombination in regioregular poly (3-hexylthiophene): [6,6]-phenyl-C61-butyric acid methyl ester (RRP3HT:PCBM) bulk-heterojunction solar cells is caused by the two dimensional (2D) Langevin recombination in the lamellar structures of RRP3HT, which are formed after annealing process. Due to 2D Langevin process, bimolecular recombination coefficient is reduced in comparison with three dimensional Langevin case, and bimolecular recombination coefficient depends on the density of charge carriers n(1/2). Data obtained from the different experimental techniques (charge extraction with linearly increasing voltage, integral time of flight, double injection current transients and transient absorption spectroscopy) confirms 2D Langevin recombination in RR3PHT. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3141513]

引用

页数：3

共 12 条

[1] Polaron recombination in pristine and annealed bulk heterojunction solar cells
Deibel, C.
Baumann, A.
Dyakonov, V.
[J]. APPLIED PHYSICS LETTERS, 2008, 93 (16)
[2] Double-injection current transients as a way of measuring transport in insulating organic films
Juska, G.
Genevicius, K.
Sliauzys, G.
Pivrikas, A.
Scharber, M.
Osterbacka, R.
[J]. JOURNAL OF APPLIED PHYSICS, 2007, 101 (11)
[3] Trimolecular recombination in polythiophene: fullerene bulk heterojunction solar cells
Juska, G.
Genevicius, K.
Nekrasas, N.
Sliauzys, G.
Dennler, G.
[J]. APPLIED PHYSICS LETTERS, 2008, 93 (14)
[4] SPACE-CHARGE-LIMITED PHOTOCURRENT TRANSIENTS - THE INFLUENCE OF BIMOLECULAR RECOMBINATION
JUSKA, G
VILIUNAS, M
ARLAUSKAS, K
KOCKA, J
[J]. PHYSICAL REVIEW B, 1995, 51 (23): : 16668 - 16676
[5] Double injection in organic bulk-heterojunction
Juska, Gytis
Genevicius, Kristijonas
Sliauzys, Gytis
Nekrasas, Nerijus
Osterbacka, Ronald
[J]. JOURNAL OF NON-CRYSTALLINE SOLIDS, 2008, 354 (19-25) : 2858 - 2861
[6] A review of charge transport and recombination in polymer/fullerene organic solar cells
Pivrikas, A.
Sariciftci, N. S.
Juska, G.
Osterbacka, R.
[J]. PROGRESS IN PHOTOVOLTAICS, 2007, 15 (08): : 677 - 696
[7] Langevin recombination and space-charge-perturbed current transients in regiorandom poly(3-hexylthiophene) -: art. no. 125205
Pivrikas, A
Juska, G
Österbacka, R
Westerling, M
Viliunas, M
Arlauskas, K
Stubb, H
[J]. PHYSICAL REVIEW B, 2005, 71 (12):
[8] Time-dependent Langevin-type bimolecular charge carrier recombination in regiorandom poly(3-hexylthiophene)
Pivrikas, A
Österbacka, R
Juska, G
Arlauskas, K
Stubb, H
[J]. SYNTHETIC METALS, 2005, 155 (02) : 242 - 245
[9] Bimolecular recombination coefficient as a sensitive testing parameter for low-mobility solar-cell materials
Pivrikas, A
Juska, G
Mozer, AJ
Scharber, M
Arlauskas, K
Sariciftci, NS
Stubb, H
Osterbacka, R
[J]. PHYSICAL REVIEW LETTERS, 2005, 94 (17)
[10] Bimolecular recombination losses in polythiophene: Fullerene solar cells
Shuttle, C. G.
O'Regan, B.
Ballantyne, A. M.
Nelson, J.
Bradley, D. D. C.
Durrant, J. R.
[J]. PHYSICAL REVIEW B, 2008, 78 (11):

← 1 2 →