Does Conjugation Help Exciton Dissociation? A Study on Poly(p-phenylene)s in Planar Heterojunctions with C60 or TNF

被引：73

作者：

Schwarz, Christian ^{[1
]}

Baessler, Heinz ^{[1
]}

Bauer, Irene ^{[1
]}

Koenen, Jan-Moritz ^{[2
]}

Preis, Eduard ^{[2
]}

Scherf, Ullrich ^{[2
]}

Koehler, Anna ^{[1
]}

机构：

[1] Univ Bayreuth, BIMF, D-95440 Bayreuth, Germany

[2] Berg Univ Wuppertal, D-42097 Wuppertal, Germany

来源：

ADVANCED MATERIALS | 2012年 / 24卷 / 07期

关键词：

Exciton dissociation; Organic solar cells; Semiconducting polymers; Conjugated polymers; Heterojunctions; CHARGE-TRANSFER EXCITONS; SOLAR-CELLS; TRANSIENT ABSORPTION; TRANSFER STATES; ENERGY-TRANSFER; BLEND FILMS; POLYMERS; PHOTOCURRENT; DIFFUSION; PHOTOCONDUCTION;

D O I：

10.1002/adma.201104063

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Internal photocurrent quantum yields near 100% can be obtained from the separation of loosely bound geminate pairs when suffi ciently large electric fi elds are applied to organic heterojunctions. The fi elds needed for complete electron- hole dissociation decrease to those prevailing in organic solar cells under operating conditions when wellconjugated polymers are employed.

引用

收藏

页码：922 / +

页数：5

相关论文

共 38 条

[1] Dopant-assisted charge carrier photogeneration in conjugated polymers [J].

Arkhipov, VI ;

Emelianova, EV ;

Bäassler, H .

CHEMICAL PHYSICS LETTERS, 2003, 372 (5-6) :886-892

[2] Formation of a ground-state charge-transfer complex in polyfluorene/[6,6]-phenyl-C61 butyric acid methyl ester (PCBM) blend films and its role in the function of polymer/PCBM solar cells [J].

Benson-Smith, Jessica J. ;

Goris, Ludwig ;

Vandewal, Koen ;

Haenen, Ken ;

Manca, Jean V. ;

Vanderzande, Dirk ;

Bradley, Donal D. C. ;

Nelson, Jenny .

ADVANCED FUNCTIONAL MATERIALS, 2007, 17 (03) :451-457

[3] Charge separation and fullerene triplet formation in blend films of polyfluorene polymers with [6,6]-phenyl C61 butyric acid methyl ester [J].

Benson-Smith, Jessica J. ;

Ohkita, Hideo ;

Cook, Steffan ;

Durrant, James R. ;

Bradley, Donal D. C. ;

Nelson, Jenny .

DALTON TRANSACTIONS, 2009, (45) :10000-10005

[4] 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

[5] Molecular Understanding of Organic Solar Cells: The Challenges [J].

Bredas, Jean-Luc ;

Norton, Joseph E. ;

Cornil, Jerome ;

Coropceanu, Veaceslav .

ACCOUNTS OF CHEMICAL RESEARCH, 2009, 42 (11) :1691-1699

[6] Analysis of Charge Photogeneration as a Key Determinant of Photocurrent Density in Polymer: Fullerene Solar Cells [J].

Clarke, Tracey M. ;

Ballantyne, Amy ;

Shoaee, Safa ;

Soon, Ying W. ;

Duffy, Warren ;

Heeney, Martin ;

McCulloch, Iain ;

Nelson, Jenny ;

Durrant, James R. .

ADVANCED MATERIALS, 2010, 22 (46) :5287-5291

[7] Estimate of singlet diffusion lengths in PCBM films by time-resolved emission studies [J].

Cook, Steffan ;

Furube, Akihiro ;

Katoh, Ryuzi ;

Han, Liyuan .

CHEMICAL PHYSICS LETTERS, 2009, 478 (1-3) :33-36

[8] Role of the Charge Transfer State in Organic Donor-Acceptor Solar Cells [J].

Deibel, Carsten ;

Strobel, Thomas ;

Dyakonov, Vladimir .

ADVANCED MATERIALS, 2010, 22 (37) :4097-4111

[9] Polymer-fullerene bulk heterojunction solar cells [J].

Deibel, Carsten ;

Dyakonov, Vladimir .

REPORTS ON PROGRESS IN PHYSICS, 2010, 73 (09)

[10] Origin of the Efficient Polaron-Pair Dissociation in Polymer-Fullerene Blends [J].

Deibel, Carsten ;

Strobel, Thomas ;

Dyakonov, Vladimir .

PHYSICAL REVIEW LETTERS, 2009, 103 (03)

← 1 2 3 4 →