On the Conformation of Dimeric Acceptors and Their Polymer Solar Cells with Efficiency over 18 %
Artikel i vetenskaplig tidskrift, 2023
The determination of molecular conformations of oligomeric acceptors (OAs) and their impact on molecular packing are crucial for understanding the photovoltaic performance of their resulting polymer solar cells (PSCs) but have not been well studied yet. Herein, we synthesized two dimeric acceptor materials, DIBP3F-Se and DIBP3F-S, which bridged two segments of Y6-derivatives by selenophene and thiophene, respectively. Theoretical simulation and experimental 1D and 2D NMR spectroscopic studies prove that both dimers exhibit O-shaped conformations other than S- or U-shaped counter-ones. Notably, this O-shaped conformation is likely governed by a distinctive “conformational lock” mechanism, arising from the intensified intramolecular π–π interactions among their two terminal groups within the dimers. PSCs based on DIBP3F-Se deliver a maximum efficiency of 18.09 %, outperforming DIBP3F-S-based cells (16.11 %) and ranking among the highest efficiencies for OA-based PSCs. This work demonstrates a facile method to obtain OA conformations and highlights the potential of dimeric acceptors for high-performance PSCs.
Selenophene
Solar Cells
Molecular Conformation
Acceptor
Oligomer
Författare
Jingnan Wu
Aalborg Universitet
Chalmers, Kemi och kemiteknik, Tillämpad kemi
Zhaoheng Ling
King Abdullah University of Science and Technology (KAUST)
Leandro R. Franco
Karlstads universitet
Sang Young Jeong
Korea University
Zewdneh Genene Wolkeba
Chalmers, Kemi och kemiteknik, Tillämpad kemi
Josué Mena Gomez
Chalmers, Kemi och kemiteknik, Tillämpad kemi
Si Chen
King Abdullah University of Science and Technology (KAUST)
Cailing Chen
King Abdullah University of Science and Technology (KAUST)
C. Moyses Araujo
Karlstads universitet
Uppsala universitet
Cleber F.N. Marchiori
Karlstads universitet
Joost Kimpel
Chalmers, Kemi och kemiteknik, Tillämpad kemi
Xiaoming Chang
King Abdullah University of Science and Technology (KAUST)
Furkan H. Isikgor
King Abdullah University of Science and Technology (KAUST)
Qiaonan Chen
Chalmers, Kemi och kemiteknik, Tillämpad kemi
Hendrik Faber
King Abdullah University of Science and Technology (KAUST)
Yu Han
King Abdullah University of Science and Technology (KAUST)
Frédéric Laquai
King Abdullah University of Science and Technology (KAUST)
Maojie Zhang
Shandong University
Han Young Woo
Korea University
Donghong Yu
Aalborg Universitet
Thomas D. Anthopoulos
King Abdullah University of Science and Technology (KAUST)
Ergang Wang
Chalmers, Kemi och kemiteknik, Tillämpad kemi
Angewandte Chemie - International Edition
1433-7851 (ISSN) 1521-3773 (eISSN)
Vol. 62 45 e202302888Konjugerade polymerer med länkade allkylsidkedjor för stabila polymersolceller
Vetenskapsrådet (VR) (2019-04683), 2020-01-01 -- 2023-12-31.
Nästa generation organiska solceller (OPV 2.0)
Vetenskapsrådet (VR) (2016-06146), 2017-01-01 -- 2022-12-31.
Vetenskapsrådet (VR) (2016-06146), 2017-01-01 -- 2022-12-31.
Vetenskapsrådet (VR) (2016-06146), 2017-01-01 -- 2022-12-31.
Ämneskategorier
Polymerkemi
Biokemi och molekylärbiologi
Biofysik
Organisk kemi
DOI
10.1002/anie.202302888
PubMed
37380618