Direct Measurement of Electric Field-Assisted Charge Separation in Polymer: Fullerene Photovoltaic Diodes

被引：120

作者：

Marsh, R. Alex ^{[1
]}

Hodgkiss, Justin M. ^{[1
]}

Friend, Richard H. ^{[1
]}

机构：

[1] Univ Cambridge, Cavendish Lab, Dept Phys, Cambridge CB3 0HE, England

来源：

ADVANCED MATERIALS | 2010年 / 22卷 / 33期

基金：

英国工程与自然科学研究理事会;

关键词：

SOLAR-CELLS; NANOSCALE MORPHOLOGY; RECOMBINATION; ABSORPTION; TRANSIENT; FILMS; POLYTHIOPHENE; GENERATION; NETWORK; STATES;

D O I：

10.1002/adma.201001010

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The electric field dependence of transient optical absorption of photogenerated charge carriers in working organic photovoltaic cells is reported. Charge lifetimes are extended under reverse bias, revealing that the mechanism of photocurrent generation is the electric field-assisted separation of Coulombically bound charge pairs in kinetic competition with geminate charge recombination.

引用

页码：3672 / +

页数：6

共 33 条

[1] Optical spectroscopy of field-induced charge in self-organized high mobility poly(3-hexylthiophene) [J].

Brown, PJ ;

Sirringhaus, H ;

Harrison, M ;

Shkunov, M ;

Friend, RH .

PHYSICAL REVIEW B, 2001, 63 (12)

[2] Low-Temperature Control of Nanoscale Morphology for High Performance Polymer Photovoltaics [J].

Campbell, Andrew R. ;

Hodgkiss, Justin M. ;

Westenhoff, Sebastian ;

Howard, Ian A. ;

Marsh, Robert A. ;

McNeill, Christopher R. ;

Friend, Richard H. ;

Greenham, Neil C. .

NANO LETTERS, 2008, 8 (11) :3942-3947

[3] Morphology evolution via self-organization and lateral and vertical diffusion in polymer: fullerene solar cell blends [J].

Campoy-Quiles, Mariano ;

Ferenczi, Toby ;

Agostinelli, Tiziano ;

Etchegoin, Pablo G. ;

Kim, Youngkyoo ;

Anthopoulos, Thomas D. ;

Stavrinou, Paul N. ;

Bradley, Donal D. C. ;

Nelson, Jenny .

NATURE MATERIALS, 2008, 7 (02) :158-164

[4] Role of intermolecular coupling in the photophysics of disordered organic semiconductors: Aggregate emission in regioregular polythiophene [J].

Clark, Jenny ;

Silva, Carlos ;

Friend, Richard H. ;

Spano, Frank C. .

PHYSICAL REVIEW LETTERS, 2007, 98 (20)

[5] Geminate charge recombination in alternating polyfluorene Copolymer/Fullerene blends [J].

De, Swati ;

Pascher, Torbjorn ;

Maiti, Manisankar ;

Jespersen, Kim G. ;

Kesti, Tero ;

Zhang, Fengling ;

Inganas, Olle ;

Yartsev, Arkady ;

Sundstrom, Villy .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (27) :8466-8472

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

Deibel, Carsten ;

Strobel, Thomas ;

Dyakonov, Vladimir .

PHYSICAL REVIEW LETTERS, 2009, 103 (03)

[7] Excited-state properties of C60 fullerene derivatives [J].

Guldi, DM ;

Prato, M .

ACCOUNTS OF CHEMICAL RESEARCH, 2000, 33 (10) :695-703

[8] EFFICIENT PHOTODIODES FROM INTERPENETRATING POLYMER NETWORKS [J].

HALLS, JJM ;

WALSH, CA ;

GREENHAM, NC ;

MARSEGLIA, EA ;

FRIEND, RH ;

MORATTI, SC ;

HOLMES, AB .

NATURE, 1995, 376 (6540) :498-500

[9] Ion-Induced Formation of Charge-Transfer States in Conjugated Polyelectrolytes [J].

Hodgkiss, Justin M. ;

Tu, Guoli ;

Albert-Seifried, Sebastian ;

Huck, Wilhelm T. S. ;

Friend, Richard H. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (25) :8913-8921

[10] Organic solar cells: An overview [J].

Hoppe, H ;

Sariciftci, NS .

JOURNAL OF MATERIALS RESEARCH, 2004, 19 (07) :1924-1945

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