[18p-M_B104-1~8] 12.4 Organic light-emitting devices, organic transistors, and flexible devices

3:00 PM - 3:15 PM JST(6:00 AM - 6:15 AM UTC)

[18p-M_B104-6] Fabrication of polyfluorene-based blue light-emitting electrochemical cells and their operating characteristics studied by a displacement current measurement technique

〇Ryota Takubo¹, Noguchi Yutaka¹ (1.Meiji Univ.)

Keywords:

light-emitting electrochemical cell,electrochemical doping

In this study, blue electrochemical light-emitting cells (LECs) were fabricated with the aim of elucidating their operating mechanism and improving emission efficiency, focusing on potential application to host–guest systems. A polyfluorene derivative, F8-Spiro, with a high triplet energy was employed as the host material, in combination with an ionic liquid, P4444-DBP, exhibiting good compatibility. The operating characteristics of the devices were analyzed using a displacement current measurement combined with electroluminescence (DCM-EL) technique to investigate the relationship between electrochemical doping behavior and emission properties.