Transient absorption spectroscopy of charge photogeneration yields and lifetimes in a low bandgap polymer/fullerene film

被引：87

作者：

Clarke, Tracey ^{[1
,2
]}

Ballantyne, Amy ^{[1
,2
]}

Jamieson, Fiona ^{[1
,2
]}

Brabec, Christoph ^{[3
]}

Nelson, Jenny ^{[1
,2
]}

Durrant, James ^{[1
,2
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AZ, England

[2] Univ London Imperial Coll Sci Technol & Med, Dept Phys, London SW7 2AZ, England

[3] Konarka Technol Austria, A-4040 Linz, Austria

来源：

CHEMICAL COMMUNICATIONS | 2009年 / 01期

关键词：

POLYMER SOLAR-CELLS; OPTICAL-PROPERTIES;

D O I：

10.1039/b813815j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Charge photogeneration yields and energetics are determined for a low band gap co-polymer, PCPDTBT blended with PC70BM; the increase in charge photogeneration with dithiol is correlated with an increase in the free energy of charge separation.

引用

页码：89 / 91

页数：3

共 11 条

[1] 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

[2] Ultrafast electron transfer and decay dynamics in a small band gap bulk heterojunction material [J].

Hwang, In-Wook ;

Soci, Cesare ;

Moses, Daniel ;

Zhu, Zhengguo ;

Waller, David ;

Gaudiana, Russell ;

Brabec, Christoph J. ;

Heeger, Alan J. .

ADVANCED MATERIALS, 2007, 19 (17) :2307-+

[3] 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

[4] Bipolar charge transport in PCPDTBT-PCBM bulk-heterojunctions for photovoltaic applications [J].

Morana, Mauro ;

Wegscheider, Matthias ;

Bonanni, Alberta ;

Kopidakis, Nikos ;

Shaheen, Sean ;

Scharber, Markus ;

Zhu, Zhengguo ;

Waller, David ;

Gaudiana, Russell ;

Brabec, Christoph .

ADVANCED FUNCTIONAL MATERIALS, 2008, 18 (12) :1757-1766

[5] Diffusion-limited recombination in polymer-fullerene blends and its influence on photocurrent collection [J].

Nelson, J .

PHYSICAL REVIEW B, 2003, 67 (15)

[6] Charge recombination in conjugated polymer/fullerene blended films studied by transient absorption Spectroscopy [J].

Nogueira, AF ;

Montanari, I ;

Nelson, J ;

Durrant, JR ;

Winder, C ;

Sariciftci, NS .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (07) :1567-1573

[7] Charge carrier formation in polythiophene/fullerene blend films studied by transient absorption spectroscopy [J].

Ohkita, Hideo ;

Cook, Steffan ;

Astuti, Yeni ;

Duffy, Warren ;

Tierney, Steve ;

Zhang, Weimin ;

Heeney, Martin ;

McCulloch, Iain ;

Nelson, Jenny ;

Bradley, Donal D. C. ;

Durrant, James R. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (10) :3030-3042

[8] Efficiency enhancement in low-bandgap polymer solar cells by processing with alkane dithiols [J].

Peet, J. ;

Kim, J. Y. ;

Coates, N. E. ;

Ma, W. L. ;

Moses, D. ;

Heeger, A. J. ;

Bazan, G. C. .

NATURE MATERIALS, 2007, 6 (07) :497-500

[9] Design rules for donors in bulk-heterojunction solar cells -: Towards 10 % energy-conversion efficiency [J].

Scharber, MC ;

Wühlbacher, D ;

Koppe, M ;

Denk, P ;

Waldauf, C ;

Heeger, AJ ;

Brabec, CL .

ADVANCED MATERIALS, 2006, 18 (06) :789-+

[10] The influence of the structural defects and microscopic aggregation of poly(3-alkylthiophenes) on electrochemical and optical properties of the polymer films: discussion of an origin of redox peaks in the cyclic voltammograms [J].

Skompska, M ;

Szkurlat, A .

ELECTROCHIMICA ACTA, 2001, 46 (26-27) :4007-4015

← 1 2 →