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Non-fused medium bandgap electron acceptors for efficient organic photovoltaics
Zhejiang Univ, Peoples R China.
Zhejiang Univ, Peoples R China.
Linköpings universitet, Institutionen för fysik, kemi och biologi, Elektroniska och fotoniska material. Linköpings universitet, Tekniska fakulteten.
Zhejiang Univ, Peoples R China.
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2022 (Engelska)Ingår i: Journal of Energy Challenges and Mechanics, E-ISSN 2056-9386, Vol. 70, s. 576-582Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The cost-effective organic semiconductors are strongly needed in organic photovoltaics (OPVs). Herein, two medium bandgap (MBG) electron acceptors, TPT4F and TPT4Cl are developed via the new design of multi-noncovalent interaction assisted unfused core, flanked with two electron withdrawing end groups. These fullly non-fused MBG acceptors adapt the planar and rigid conformation in solid, therefore exhibiting the ordered face-on stacking and strong photoluminescence in films. As results, TPT4Cl-based OPVs, upon blending with the PBDB-TF polymer donor, have achieved a power conversion efficiency of 10.16% with a low non-radiative loss of 0.27 eV, representing one of the best fullly non-fused medium bandgap acceptors with desirable cost-efficiency balance. (c) 2022 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved.

Ort, förlag, år, upplaga, sidor
ELSEVIER , 2022. Vol. 70, s. 576-582
Nyckelord [en]
Organic photovoltaic; Medium bandgap; Electron withdrawing unit; Non-covalent interaction
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Annan fysik
Identifikatorer
URN: urn:nbn:se:liu:diva-191869DOI: 10.1016/j.jechem.2022.03.030ISI: 000913293200001OAI: oai:DiVA.org:liu-191869DiVA, id: diva2:1738594
Anmärkning

Funding Agencies|National Natural Science Foun-dation of China [22125901, 21722404]; Research Grants Council (RGC) of Hong Kong [14303519]; Joint Laboratory Funding Scheme Project [JLFS/P-102/18]; NSFC/RGC Joint Research Scheme Grant [N_CUHK418/17]; CUHK direct grant [4442384]

Tillgänglig från: 2023-02-22 Skapad: 2023-02-22 Senast uppdaterad: 2023-05-25

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Jain, NakulGao, Feng
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Elektroniska och fotoniska materialTekniska fakulteten
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Journal of Energy Challenges and Mechanics
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