Thursday, May 2025

11:40 AM - 12:00 PM

Room: LL20BC

Session: Blue OLED Materials

Highly Efficient and Stable Blue Fluorescent OLED Using Dual EML System

Distinguished

• 

  Senior Researcher

  Satomi Tasaki , MD

  Idemitsu Kosan Co., Ltd.

Description:

We improved the light extraction efficiency of BH1 in the previously reported high-efficiency blue fluorescent OLED technology, Dual EML. Through new mechanism analysis, we confirmed that the clear functional separation of the two layers enhances TTF, and each BHs deuteration impact resulting in multiplicative extension of lifetime. Furthermore, by applying a dual HTL, BE device achieved EQE =16.3%the TE device achieved BI=350 and LT95>200h.