Efficient Quaternary Organic Solar Cells with Parallel‐Alloy Morphology
Abstract
Abstract Two compatible donors (PBDB‐T and PTB7‐Th) and two miscible acceptors (ITIC and FOIC) are employed to deliver a parallel‐alloy morphology model in non‐fullerene‐based quaternary organic solar cells. PBDB‐T and PTB7‐Th form a parallel link with a slight adjustment of molecular packing into enhanced face‐on crystallites while ITIC disperses into discontinuous FOIC microcrystal regions to form continuous and ordered alloy‐like acceptor phases. Characterization of blend morphology highlights the parallel‐alloy model—enabled by the introduction of PBDB‐T and ITIC, which contributes to improved molecular packing and reduced domain size resulting in efficient charge generation and consistent transport channels. This successful parallel‐alloy quaternary blend morphology demonstrates an enhanced optical absorption, optimized domain size, and nanostructures toward simultaneous improvement in charge transfer and transport. Therefore, a power conversion efficiency of 12.52% is realized for a quaternary device which is 6% higher than the ternary device (PBDB‐T:PTB7‐Th:FOIC) and 12% higher than the binary device (PTB7‐Th:FOIC). Domination of quaternary devices over ternary and binary blends, which is another feasible way to realize highly efficient devices through further investigation of quaternary OSCs, is presented.
- Authors:
-
[1]
- State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University Xi'an 710049 China
- Division of Nanophotonics CAS Key Laboratory of Standardization and Measurement for Nanotechnology CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology Beijing 100191 China
- Department of Materials Science and Engineering College of Engineering Key Laboratory of Polymer Chemistry and Physics of Ministry of Education Peking University Beijing 100871 China
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1490111
- Grant/Contract Number:
- DE‐AC02‐05CH11231
- Resource Type:
- Publisher's Accepted Manuscript
- Journal Name:
- Advanced Functional Materials
- Additional Journal Information:
- Journal Name: Advanced Functional Materials Journal Volume: 29 Journal Issue: 9; Journal ID: ISSN 1616-301X
- Publisher:
- Wiley Blackwell (John Wiley & Sons)
- Country of Publication:
- Germany
- Language:
- English
Citation Formats
Bi, Zhaozhao, Zhu, Qinglian, Xu, Xianbin, Naveed, Hafiz Bilal, Sui, Xinyu, Xin, Jingming, Zhang, Lin, Li, Tengfei, Zhou, Ke, Liu, Xinfeng, Zhan, Xiaowei, and Ma, Wei. Efficient Quaternary Organic Solar Cells with Parallel‐Alloy Morphology. Germany: N. p., 2019.
Web. doi:10.1002/adfm.201806804.
Bi, Zhaozhao, Zhu, Qinglian, Xu, Xianbin, Naveed, Hafiz Bilal, Sui, Xinyu, Xin, Jingming, Zhang, Lin, Li, Tengfei, Zhou, Ke, Liu, Xinfeng, Zhan, Xiaowei, & Ma, Wei. Efficient Quaternary Organic Solar Cells with Parallel‐Alloy Morphology. Germany. https://doi.org/10.1002/adfm.201806804
Bi, Zhaozhao, Zhu, Qinglian, Xu, Xianbin, Naveed, Hafiz Bilal, Sui, Xinyu, Xin, Jingming, Zhang, Lin, Li, Tengfei, Zhou, Ke, Liu, Xinfeng, Zhan, Xiaowei, and Ma, Wei. Tue .
"Efficient Quaternary Organic Solar Cells with Parallel‐Alloy Morphology". Germany. https://doi.org/10.1002/adfm.201806804.
@article{osti_1490111,
title = {Efficient Quaternary Organic Solar Cells with Parallel‐Alloy Morphology},
author = {Bi, Zhaozhao and Zhu, Qinglian and Xu, Xianbin and Naveed, Hafiz Bilal and Sui, Xinyu and Xin, Jingming and Zhang, Lin and Li, Tengfei and Zhou, Ke and Liu, Xinfeng and Zhan, Xiaowei and Ma, Wei},
abstractNote = {Abstract Two compatible donors (PBDB‐T and PTB7‐Th) and two miscible acceptors (ITIC and FOIC) are employed to deliver a parallel‐alloy morphology model in non‐fullerene‐based quaternary organic solar cells. PBDB‐T and PTB7‐Th form a parallel link with a slight adjustment of molecular packing into enhanced face‐on crystallites while ITIC disperses into discontinuous FOIC microcrystal regions to form continuous and ordered alloy‐like acceptor phases. Characterization of blend morphology highlights the parallel‐alloy model—enabled by the introduction of PBDB‐T and ITIC, which contributes to improved molecular packing and reduced domain size resulting in efficient charge generation and consistent transport channels. This successful parallel‐alloy quaternary blend morphology demonstrates an enhanced optical absorption, optimized domain size, and nanostructures toward simultaneous improvement in charge transfer and transport. Therefore, a power conversion efficiency of 12.52% is realized for a quaternary device which is 6% higher than the ternary device (PBDB‐T:PTB7‐Th:FOIC) and 12% higher than the binary device (PTB7‐Th:FOIC). Domination of quaternary devices over ternary and binary blends, which is another feasible way to realize highly efficient devices through further investigation of quaternary OSCs, is presented.},
doi = {10.1002/adfm.201806804},
journal = {Advanced Functional Materials},
number = 9,
volume = 29,
place = {Germany},
year = {Tue Jan 08 00:00:00 EST 2019},
month = {Tue Jan 08 00:00:00 EST 2019}
}
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