High‐Efficiency Blue‐Emission Crystalline Organic Light‐Emitting Diodes by Engineering Thermally Activated Delayed Fluorescence Nanoaggregates
Abstract: A crystalline host matrix (CHM) with embedded nanoaggregates (NA) is a powerful strategy to develop high‐performance crystalline OLEDs that can combine the advantages of both crystalline and high‐exciton‐utilization‐efficiency light emitting materials. Here a CHM‐NA structure blue‐emission crystalline OLED is developed, which employs a thermally activated delayed fluorescence (TADF) material. The CHM‐TADFNA OLED is proved to efficiently manage exciton distribution by engineering nanoaggregates. The device exhibits a remarkable EQE up to 10.4% and achieves the characteristics of rapid turn‐on, and fast ramping of luminance and current density, resulting in an enhanced photon output and a lower series‐resistance Joule‐heat loss ratio, indicating a competitive pathway to future blue‐emission OLEDs.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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High‐Efficiency Blue‐Emission Crystalline Organic Light‐Emitting Diodes by Engineering Thermally Activated Delayed Fluorescence Nanoaggregates ; day:31 ; month:10 ; year:2023 ; extent:11
Advanced electronic materials ; (31.10.2023) (gesamt 11)
- Urheber
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Liu, Yijun
Wang, Xiaodi
Zhu, Feng
Wang, Yue
Yan, Donghang
- DOI
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10.1002/aelm.202300616
- URN
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urn:nbn:de:101:1-2023110114281821046977
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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14.08.2025, 10:46 MESZ
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Beteiligte
- Liu, Yijun
- Wang, Xiaodi
- Zhu, Feng
- Wang, Yue
- Yan, Donghang
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