[18a-M_B104-1~10] 12.4 Organic light-emitting devices, organic transistors, and flexible devices

9:30 AM - 9:45 AM JST(12:30 AM - 12:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18a-M_B104-3] Material Design of MR-TADF Donors and Emitter Incorporation for Enhanced Emission Efficiency in Power-Generating OLEDs

〇Haruto Shoji¹, Taku Oono², Tsubasa Sasaki², Yuho Aoki¹, Hirohiko Fukagawa^3,4, Takuji Hatakeyama⁵, Takahisa Shimizu^1,2 (1.Tokyo Univ. of Science, 2.NHK Sci. & Tech. Res. Labs., 3.CFS, 4.MCRC, 5.Kyoto Univ.)

Keywords:

OLED,OPV,Organic semiconductor

In organic devices, achieving both light emission and power generation—two conflicting processes—is challenging. A significant issue is the substantial decrease in the fill factor (FF) during power generation within the donor-acceptor mixed layer, which serves as both the light-emitting layer and the charge separation layer. This study aimed to maintain a high FF in devices incorporating a mixed layer by selecting appropriate donor materials and optimizing the device structure. Additionally, the addition of emitter materials to the mixed layer was investigated to enhance luminescence efficiency.