International Display Workshops General Incorporated Association

Proceedings of the International Display Workshops Volume 30 (IDW '23)

Proceedings of the International Display Workshops Volume 30 (IDW '23)

Dec 6, 2023 - Dec 8, 2023
TOKI MESSE Niigata Convention Center

5:30 PM - 5:50 PM

[OLED4-2 (Invited)] Engineering Polarization-Induced Efficiency Loss in OLEDs via Processing Conditions and Stack Architecture

Siliang He1, Evgeny Pakhomenkno1, *Russell J. Holmes1 (1. University of Minnesota (United States of America))

OLEDs, exciton quenching, spontaneous orientation polarization, SOP, molecular orientation

https://doi.org/10.36463/idw.2023.0584

Peak OLED efficiency is generally considered in the absence of bimolecular quenching. Recent work has challenged this notion, with observations of exciton-polaron quenching at low-bias caused by spontaneous orientation polarization (SOP). Here, we examine how SOP-induced quenching can be mitigated via judicious choice of film processing conditions and stack architecture.