The Nanoscale Morphology of a PCDTBT: PCBM Photovoltaic Blend

被引：94

作者：

Staniec, Paul A. ^{[1
]}

Parnell, Andrew J. ^{[1
]}

Dunbar, Alan D. F. ^{[3
]}

Yi, Hunan ^{[2
]}

Pearson, Andrew J. ^{[1
]}

Wang, Tao ^{[1
]}

Hopkinson, Paul E. ^{[5
]}

Kinane, Christy ^{[4
]}

Dalgliesh, Robert M. ^{[4
]}

Donald, Athene M. ^{[5
]}

Ryan, Anthony J. ^{[2
]}

Iraqi, Ahmed ^{[2
]}

Jones, Richard A. L. ^{[1
]}

Lidzey, David G. ^{[1
]}

机构：

[1] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England

[2] Univ Sheffield, Dept Chem, Sheffield S3 7HF, S Yorkshire, England

[3] Univ Sheffield, Dept Chem & Biol Engn, Sheffield S1 3JD, S Yorkshire, England

[4] Rutherford Appleton Lab, Sci & Technol Facil Council, ISIS Pulsed Neutron & Muon Source, Didcot OX11 0QX, Oxon, England

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

来源：

ADVANCED ENERGY MATERIALS | 2011年 / 1卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

SOLAR-CELLS; POLYMER; EFFICIENCY;

D O I：

10.1002/aenm.201100144

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Neutron reflectivity and X-ray scattering have been used to characterise the structure of photovoltaic optimised PCDTBT:PCBM (1:4) blend films. A negative gradient of the PCBM forms spontaneously upon film casting - a fortuitous structure that is well matched for efficient charge extraction. Mild thermal annealing at 70 °C does not significantly modify the film structure, and any improvement in device efficiency is likely to be through the removal of trapped casting solvent. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：499 / 504

页数：6

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