[OLED4-2] Probing Exciton Formation at the Organic Interfaces of Multilayer OLEDs under Operation using Electronic Sum-Frequency Generation Spectroscopy | Proceedings of the International Display Workshops Volume 31 (IDW '24)

Proceedings of the International Display Workshops Volume 31 (IDW '24)

Dec 4 - Dec 6, 2024Sapporo Convention Center

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Proceedings of the International Display Workshops Volume 31 (IDW '24)

Dec 4 - Dec 6, 2024Sapporo Convention Center

[OLED4-2]Probing Exciton Formation at the Organic Interfaces of Multilayer OLEDs under Operation using Electronic Sum-Frequency Generation Spectroscopy

*Tatsuya Kaburagi¹, Kazunori Morimoto¹, Takayuki Miyamae¹(1. Chiba University (Japan))

https://doi.org/10.36463/idw.2024.0605

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Keywords:

OLED,electronic sum-frequency generation spectroscopy,operando measurement

Understanding the interfacial electronic states is important to optimize the OLED structures. In this study, electronic sum-frequency generation (ESFG) spectroscopy is applied for the investigation of the electronic transition states of the OLEDs. ESFG measurements under operation revealed changes in ESFG spectra originating from formation of the exciton at the emission layer interface.

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