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3 October 2022 Long-persistent luminescence from an exciplex-based organic light-emitting diode (Conference Presentation)
Ryota Kabe
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Proceedings Volume PC12208, Organic and Hybrid Light Emitting Materials and Devices XXVI; PC122080U (2022) https://doi.org/10.1117/12.2633375
Event: SPIE Organic Photonics + Electronics, 2022, San Diego, California, United States
Abstract
The exciplex has attracted immense attention as a highly efficient organic light-emitting diode (OLED) emitter owing to the inclusion of a thermally activated delayed fluorescence (TADF) process. Moreover, the exciplex can exhibit long-persistent luminescence (LPL) over several hours by optimization of the donor and acceptor concentrations. However, there have been no reports of LPL from exciplex OLEDs, and the correlation between OLEDs and OLPLs has not yet been clarified. In this study, we confirmed the presence of OLPL under electrical excitation. We elucidated the detailed emission processes of OLPL systems including the thermal activation process such as TADF.
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Ryota Kabe "Long-persistent luminescence from an exciplex-based organic light-emitting diode (Conference Presentation)", Proc. SPIE PC12208, Organic and Hybrid Light Emitting Materials and Devices XXVI, PC122080U (3 October 2022); https://doi.org/10.1117/12.2633375
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KEYWORDS
Organic light emitting diodes
Luminescence
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