Aggregation‐Induced Emission by Molecular Design: A Route to High‐Performance Light‐Emitting Electrochemical Cells
Abstract: The emission efficiency of organic semiconductors (OSCs) often suffers from aggregation caused quenching (ACQ). An elegant solution is aggregation‐induced emission (AIE), which constitutes the design of the OSC so that its morphology inhibits quenching π–π interactions and non‐radiative motional deactivation. The light‐emitting electrochemical cell (LEC) can be sustainably fabricated, but its function depends on motion of bulky ions in proximity of the OSC. It is therefore questionable whether the AIE morphology can be retained during LEC operation. Here, we synthesize two structurally similar OSCs, which are distinguished by that 1 features ACQ while 2 delivers AIE. Interestingly, we find that the AIE‐LEC significantly outperforms the ACQ‐LEC. We rationalize our finding by showing that the AIE morphology remains intact during LEC operation, and that it can feature appropriately sized free‐volume voids for facile ion transport and suppressed non‐radiative excitonic deactivation.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Aggregation‐Induced Emission by Molecular Design: A Route to High‐Performance Light‐Emitting Electrochemical Cells ; day:26 ; month:04 ; year:2023 ; extent:11
Angewandte Chemie ; (26.04.2023) (gesamt 11)
- Creator
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Tang, Shi
Wang, Zhi
Xu, Yanzi
Ma, Huili
Wang, Jia
Larsen, Christian
Dang, Dongfeng
Wang, Ergang
Edman, Ludvig
- DOI
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10.1002/ange.202302874
- URN
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urn:nbn:de:101:1-2023042715084564496276
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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14.08.2025, 10:46 AM CEST
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Associated
- Tang, Shi
- Wang, Zhi
- Xu, Yanzi
- Ma, Huili
- Wang, Jia
- Larsen, Christian
- Dang, Dongfeng
- Wang, Ergang
- Edman, Ludvig
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