Asymmetric electron acceptor enables highly luminescent organic solar cells with certified efficiency over 18%

Chengliang He, Zeng Chen, Tonghui Wang, Ziqiu Shen, Yaokai Li, Jiadong Zhou, Jianwei Yu, Huiyu Fang, Yuhao Li, Shuixing Li, Xinhui Lu, Wei Ma, Feng Gao, Zengqi Xie, Veaceslav Coropceanu (), Haiming Zhu (), Jean-Luc Bredas, Lijian Zuo () and Hongzheng Chen ()
Additional contact information
Chengliang He: Zhejiang University
Zeng Chen: Zhejiang University
Tonghui Wang: The University of Arizona
Ziqiu Shen: Zhejiang University
Yaokai Li: Zhejiang University
Jiadong Zhou: South China University of Technology
Jianwei Yu: Linköping University
Huiyu Fang: Xi’an Jiaotong University
Yuhao Li: Chinese University of Hong Kong, New Territories
Shuixing Li: Zhejiang University
Xinhui Lu: Chinese University of Hong Kong, New Territories
Wei Ma: Xi’an Jiaotong University
Feng Gao: Linköping University
Zengqi Xie: South China University of Technology
Veaceslav Coropceanu: The University of Arizona
Haiming Zhu: Zhejiang University
Jean-Luc Bredas: The University of Arizona
Lijian Zuo: Zhejiang University
Hongzheng Chen: Zhejiang University

Nature Communications, 2022, vol. 13, issue 1, 1-11

Abstract: Abstract Enhancing the luminescence property without sacrificing the charge collection is one key to high-performance organic solar cells (OSCs), while limited by the severe non-radiative charge recombination. Here, we demonstrate efficient OSCs with high luminescence via the design and synthesis of an asymmetric non-fullerene acceptor, BO-5Cl. Blending BO-5Cl with the PM6 donor leads to a record-high electroluminescence external quantum efficiency of 0.1%, which results in a low non-radiative voltage loss of 0.178 eV and a power conversion efficiency (PCE) over 15%. Importantly, incorporating BO-5Cl as the third component into a widely-studied donor:acceptor (D:A) blend, PM6:BO-4Cl, allows device displaying a high certified PCE of 18.2%. Our joint experimental and theoretical studies unveil that more diverse D:A interfacial conformations formed by asymmetric acceptor induce optimized blend interfacial energetics, which contributes to the improved device performance via balancing charge generation and recombination.

Date: 2022
References: Add references at CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.nature.com/articles/s41467-022-30225-7 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-30225-7

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-022-30225-7

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().