The Molecular Structure of Polymer-Fullerene Composite Solar Cells and Its Influence on Device Performance

Understanding the nanomorphology of polymer-based solar cells is key to improving device efficiencies. A detailed study of the changes in polymer solar cell morphology at the molecular level and in real time under process conditions is presented. Using low voltage, high resolution electron microscop...

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Main Authors: Beal, R, Stavrinadis, A, Warner, J, Smith, J, Assender, H, Watt, A
Format: Journal article
Language:English
Published: 2010
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author Beal, R
Stavrinadis, A
Warner, J
Smith, J
Assender, H
Watt, A
author_facet Beal, R
Stavrinadis, A
Warner, J
Smith, J
Assender, H
Watt, A
author_sort Beal, R
collection OXFORD
description Understanding the nanomorphology of polymer-based solar cells is key to improving device efficiencies. A detailed study of the changes in polymer solar cell morphology at the molecular level and in real time under process conditions is presented. Using low voltage, high resolution electron microscopy (LVHREM) we observe the mechanisms of PCBM-rich domain migration in real time and provide evidence for vertical segregation within the bulk heterojunction and increased crystallinity of both P3HT and PCBM. The results of the study highlights the fact that P3HT:PCBM bulk heterojunction morphology should be viewed within the framework of a four-phase, three-dimensional, nonequilibrium system. © 2010 American Chemical Society.
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spelling oxford-uuid:c89ac665-90ac-4d83-812c-491e0a38600c2022-03-27T06:53:26ZThe Molecular Structure of Polymer-Fullerene Composite Solar Cells and Its Influence on Device PerformanceJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:c89ac665-90ac-4d83-812c-491e0a38600cEnglishSymplectic Elements at Oxford2010Beal, RStavrinadis, AWarner, JSmith, JAssender, HWatt, AUnderstanding the nanomorphology of polymer-based solar cells is key to improving device efficiencies. A detailed study of the changes in polymer solar cell morphology at the molecular level and in real time under process conditions is presented. Using low voltage, high resolution electron microscopy (LVHREM) we observe the mechanisms of PCBM-rich domain migration in real time and provide evidence for vertical segregation within the bulk heterojunction and increased crystallinity of both P3HT and PCBM. The results of the study highlights the fact that P3HT:PCBM bulk heterojunction morphology should be viewed within the framework of a four-phase, three-dimensional, nonequilibrium system. © 2010 American Chemical Society.
spellingShingle Beal, R
Stavrinadis, A
Warner, J
Smith, J
Assender, H
Watt, A
The Molecular Structure of Polymer-Fullerene Composite Solar Cells and Its Influence on Device Performance
title The Molecular Structure of Polymer-Fullerene Composite Solar Cells and Its Influence on Device Performance
title_full The Molecular Structure of Polymer-Fullerene Composite Solar Cells and Its Influence on Device Performance
title_fullStr The Molecular Structure of Polymer-Fullerene Composite Solar Cells and Its Influence on Device Performance
title_full_unstemmed The Molecular Structure of Polymer-Fullerene Composite Solar Cells and Its Influence on Device Performance
title_short The Molecular Structure of Polymer-Fullerene Composite Solar Cells and Its Influence on Device Performance
title_sort molecular structure of polymer fullerene composite solar cells and its influence on device performance
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