Tuesday, May 2025

04:40 PM - 05:00 PM

Room: LL20BC

Session: OLED Common Layer Materials

Highly Reliable Blue Phosphor-Sensitized Fluorescent Tandem Organic Light-Emitting Diode Utilizing Spontaneous Orientation Polarization in Electron-Transport Layer

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  Hiromitsu Kido

  Semiconductor Energy Laboratory Co., Ltd.

Description:

The recombination region in a light-emitting layer in a blue phosphorescent organic light-emitting diode (OLED) was controlled through spontaneous orientation polarization in an electron-transport layer. We developed a blue phosphor-sensitized OLED using a fluorescent material whose quenching due to Dexter energy transfer is inhibited. A high-luminance and high-reliability tandem OLED employing both technologies was achieved.