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Tuning Surface Energy of Conjugated Polymers via Fluorine Substitution of Side Alkyl Chains: Influence on Phase Separation of Thin Films and Performance of Polymer Solar Cells
[Image: see text] Different contents of fluorine in side alkyl chains were incorporated into three conjugated polymers (namely, PBDTTT-f13, PBDTTT-f9, and PBDTTT-f5) whose backbones consist of benzodithiophene donors and thienothiophene acceptors. These three fluorinated polymers, in comparison with...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2017
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6641192/ https://www.ncbi.nlm.nih.gov/pubmed/31457595 http://dx.doi.org/10.1021/acsomega.7b00468 |
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author | Liu, Yanfeng Tang, Dandan Zhang, Kaicheng Huang, Peng Wang, Zhaowei Zhu, Kai Li, Zhendong Yuan, Ligang Fan, Jian Zhou, Yi Song, Bo |
author_facet | Liu, Yanfeng Tang, Dandan Zhang, Kaicheng Huang, Peng Wang, Zhaowei Zhu, Kai Li, Zhendong Yuan, Ligang Fan, Jian Zhou, Yi Song, Bo |
author_sort | Liu, Yanfeng |
collection | PubMed |
description | [Image: see text] Different contents of fluorine in side alkyl chains were incorporated into three conjugated polymers (namely, PBDTTT-f13, PBDTTT-f9, and PBDTTT-f5) whose backbones consist of benzodithiophene donors and thienothiophene acceptors. These three fluorinated polymers, in comparison with the well-known analogue PTB7-Th, show comparable energy levels and optical band gaps. However, the fluorination of side alkyl chains significantly changed the surface energy of bulk materials, which leads to distinctly different self-assembly behaviors and phase separations as being mixed with PC(71)BM. The increased mismatch in surface energies between the polymer and PC(71)BM causes larger scale phase domains, which makes a sound explanation for the difference in their photovoltaic properties. |
format | Online Article Text |
id | pubmed-6641192 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-66411922019-08-27 Tuning Surface Energy of Conjugated Polymers via Fluorine Substitution of Side Alkyl Chains: Influence on Phase Separation of Thin Films and Performance of Polymer Solar Cells Liu, Yanfeng Tang, Dandan Zhang, Kaicheng Huang, Peng Wang, Zhaowei Zhu, Kai Li, Zhendong Yuan, Ligang Fan, Jian Zhou, Yi Song, Bo ACS Omega [Image: see text] Different contents of fluorine in side alkyl chains were incorporated into three conjugated polymers (namely, PBDTTT-f13, PBDTTT-f9, and PBDTTT-f5) whose backbones consist of benzodithiophene donors and thienothiophene acceptors. These three fluorinated polymers, in comparison with the well-known analogue PTB7-Th, show comparable energy levels and optical band gaps. However, the fluorination of side alkyl chains significantly changed the surface energy of bulk materials, which leads to distinctly different self-assembly behaviors and phase separations as being mixed with PC(71)BM. The increased mismatch in surface energies between the polymer and PC(71)BM causes larger scale phase domains, which makes a sound explanation for the difference in their photovoltaic properties. American Chemical Society 2017-06-05 /pmc/articles/PMC6641192/ /pubmed/31457595 http://dx.doi.org/10.1021/acsomega.7b00468 Text en Copyright © 2017 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes. |
spellingShingle | Liu, Yanfeng Tang, Dandan Zhang, Kaicheng Huang, Peng Wang, Zhaowei Zhu, Kai Li, Zhendong Yuan, Ligang Fan, Jian Zhou, Yi Song, Bo Tuning Surface Energy of Conjugated Polymers via Fluorine Substitution of Side Alkyl Chains: Influence on Phase Separation of Thin Films and Performance of Polymer Solar Cells |
title | Tuning Surface Energy of
Conjugated Polymers via Fluorine Substitution
of Side Alkyl Chains: Influence on Phase Separation of Thin Films
and Performance of Polymer Solar Cells |
title_full | Tuning Surface Energy of
Conjugated Polymers via Fluorine Substitution
of Side Alkyl Chains: Influence on Phase Separation of Thin Films
and Performance of Polymer Solar Cells |
title_fullStr | Tuning Surface Energy of
Conjugated Polymers via Fluorine Substitution
of Side Alkyl Chains: Influence on Phase Separation of Thin Films
and Performance of Polymer Solar Cells |
title_full_unstemmed | Tuning Surface Energy of
Conjugated Polymers via Fluorine Substitution
of Side Alkyl Chains: Influence on Phase Separation of Thin Films
and Performance of Polymer Solar Cells |
title_short | Tuning Surface Energy of
Conjugated Polymers via Fluorine Substitution
of Side Alkyl Chains: Influence on Phase Separation of Thin Films
and Performance of Polymer Solar Cells |
title_sort | tuning surface energy of
conjugated polymers via fluorine substitution
of side alkyl chains: influence on phase separation of thin films
and performance of polymer solar cells |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6641192/ https://www.ncbi.nlm.nih.gov/pubmed/31457595 http://dx.doi.org/10.1021/acsomega.7b00468 |
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