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Title: From Binary to Ternary: Improving the External Quantum Efficiency of Small‐Molecule Acceptor‐Based Polymer Solar Cells with a Minute Amount of Fullerene Sensitization

Abstract

Ternary blend is proved to be a potential contender for achieving high efficiency in organic photovoltaics, which can apparently strengthen the absorption of active layer so as to better harvest light irradiation. Much of the previous work in ternary polymer solar cells focuses on broadening the absorption spectrum; however, a new insight is brought to study the third component, which in tiny amounts influents the small‐molecule acceptor‐based device performance. Without contributing to complementing the absorption, a minute amount of fullerene derivative, Bis‐PC 70 BM, can effectively play an impressive role as sensitizer in enhancing the external quantum efficiency of the host binary blend, especially for polymeric donor. Detailed investigations reveal that the minute addition of Bis‐PC 70 BM can realize morphology modification as well as facilitate electron transfer from polymeric donor to small molecule acceptor via cascade energy level modulation, and therefore lead to an improvement in device efficiency.

Authors:
 [1];  [2];  [3];  [4];  [5];  [4];  [6];  [4];  [3]; ORCiD logo [2]
  1. State Key Laboratory of Polymer Physics and Chemistry Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China, Key Laboratory of Nanosystem and Hierarchical Fabrication National Center for Nanoscience and Technology Beijing 100190 China
  2. State Key Laboratory of Polymer Physics and Chemistry Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China, School of Chemistry and Biology Engineering University of Science and Technology Beijing Beijing 100083 China
  3. State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University Xi'an 710049 China
  4. CAS Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
  5. State Key Laboratory of Polymer Physics and Chemistry Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
  6. Key Laboratory of Nanosystem and Hierarchical Fabrication National Center for Nanoscience and Technology Beijing 100190 China
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1378803
Grant/Contract Number:  
DE‐AC02‐05CH11231
Resource Type:
Publisher's Accepted Manuscript
Journal Name:
Advanced Energy Materials
Additional Journal Information:
Journal Name: Advanced Energy Materials Journal Volume: 7 Journal Issue: 17; Journal ID: ISSN 1614-6832
Publisher:
Wiley Blackwell (John Wiley & Sons)
Country of Publication:
Germany
Language:
English

Citation Formats

Chen, Yu, Qin, Yunpeng, Wu, Yang, Li, Cheng, Yao, Huifeng, Liang, Ningning, Wang, Xiaochen, Li, Weiwei, Ma, Wei, and Hou, Jianhui. From Binary to Ternary: Improving the External Quantum Efficiency of Small‐Molecule Acceptor‐Based Polymer Solar Cells with a Minute Amount of Fullerene Sensitization. Germany: N. p., 2017. Web. doi:10.1002/aenm.201700328.
Chen, Yu, Qin, Yunpeng, Wu, Yang, Li, Cheng, Yao, Huifeng, Liang, Ningning, Wang, Xiaochen, Li, Weiwei, Ma, Wei, & Hou, Jianhui. From Binary to Ternary: Improving the External Quantum Efficiency of Small‐Molecule Acceptor‐Based Polymer Solar Cells with a Minute Amount of Fullerene Sensitization. Germany. https://doi.org/10.1002/aenm.201700328
Chen, Yu, Qin, Yunpeng, Wu, Yang, Li, Cheng, Yao, Huifeng, Liang, Ningning, Wang, Xiaochen, Li, Weiwei, Ma, Wei, and Hou, Jianhui. Tue . "From Binary to Ternary: Improving the External Quantum Efficiency of Small‐Molecule Acceptor‐Based Polymer Solar Cells with a Minute Amount of Fullerene Sensitization". Germany. https://doi.org/10.1002/aenm.201700328.
@article{osti_1378803,
title = {From Binary to Ternary: Improving the External Quantum Efficiency of Small‐Molecule Acceptor‐Based Polymer Solar Cells with a Minute Amount of Fullerene Sensitization},
author = {Chen, Yu and Qin, Yunpeng and Wu, Yang and Li, Cheng and Yao, Huifeng and Liang, Ningning and Wang, Xiaochen and Li, Weiwei and Ma, Wei and Hou, Jianhui},
abstractNote = {Ternary blend is proved to be a potential contender for achieving high efficiency in organic photovoltaics, which can apparently strengthen the absorption of active layer so as to better harvest light irradiation. Much of the previous work in ternary polymer solar cells focuses on broadening the absorption spectrum; however, a new insight is brought to study the third component, which in tiny amounts influents the small‐molecule acceptor‐based device performance. Without contributing to complementing the absorption, a minute amount of fullerene derivative, Bis‐PC 70 BM, can effectively play an impressive role as sensitizer in enhancing the external quantum efficiency of the host binary blend, especially for polymeric donor. Detailed investigations reveal that the minute addition of Bis‐PC 70 BM can realize morphology modification as well as facilitate electron transfer from polymeric donor to small molecule acceptor via cascade energy level modulation, and therefore lead to an improvement in device efficiency.},
doi = {10.1002/aenm.201700328},
journal = {Advanced Energy Materials},
number = 17,
volume = 7,
place = {Germany},
year = {Tue May 09 00:00:00 EDT 2017},
month = {Tue May 09 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1002/aenm.201700328

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Cited by: 57 works
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