The origin of collected charge and open-circuit voltage in blended polyfluorene photovoltaic devices

被引：124

作者：

Snaith, HJ ^{[1
]}

Greenham, NC ^{[1
]}

Friend, RH ^{[1
]}

机构：

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

来源：

ADVANCED MATERIALS | 2004年 / 16卷 / 18期

关键词：

D O I：

10.1002/adma.200305766

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Polymer blend photovoltaic devices (see Figure) are investigated and the characteristic electron and hole lengths estimated. It is found that for a polymer film exhibiting fine-scale phase separation, only charges generated close to the electrode can be collected. The open-circuit voltage for polymer blend devices is found to be lower than that for bilayer devices, a result of the direct paths from cathode to anode within each blend component.

引用

页码：1640 / +

页数：7

共 24 条

[1] Vertically segregated polymer-blend photovoltaic thin-film structures through surface-mediated solution processing [J].

Arias, AC ;

Corcoran, N ;

Banach, M ;

Friend, RH ;

MacKenzie, JD ;

Huck, WTS .

APPLIED PHYSICS LETTERS, 2002, 80 (10) :1695-1697

[2] Photovoltaic performance and morphology of polyfluorene blends: A combined microscopic and photovoltaic investigation [J].

Arias, AC ;

MacKenzie, JD ;

Stevenson, R ;

Halls, JJM ;

Inbasekaran, M ;

Woo, EP ;

Richards, D ;

Friend, RH .

MACROMOLECULES, 2001, 34 (17) :6005-6013

[3] Modeling the current-voltage characteristics of bilayer polymer photovoltaic devices [J].

Barker, JA ;

Ramsdale, CM ;

Greenham, NC .

PHYSICAL REVIEW B, 2003, 67 (07)

[4]

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

[5]

2-A

[6] Electronic line-up in light-emitting diodes with alkali-halide/metal cathodes [J].

Brown, TM ;

Friend, RH ;

Millard, IS ;

Lacey, DJ ;

Butler, T ;

Burroughes, JH ;

Cacialli, F .

JOURNAL OF APPLIED PHYSICS, 2003, 93 (10) :6159-6172

[7] Comparing organic to inorganic photovoltaic cells: Theory, experiment, and simulation [J].

Gregg, BA ;

Hanna, MC .

JOURNAL OF APPLIED PHYSICS, 2003, 93 (06) :3605-3614

[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]

HO PM, COMMUNICATION

[10] Charge transport in hybrid nanorod-polymer composite photovoltaic cells [J].

Huynh, WU ;

Dittmer, JJ ;

Teclemariam, N ;

Milliron, DJ ;

Alivisatos, AP ;

Barnham, KWJ .

PHYSICAL REVIEW B, 2003, 67 (11) :12

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