International Display Workshops General Incorporated Association

[OLED6-4L] Degradation Analysis of Solution-Processed OLEDs by Impedance Spectroscopy and Molecular Simulation

OLED Workshop

*Thi Na Le1、Eun Young Park1、Vasudevan Thangaraji1、Min Chul Suh1 (1.Kyung Hee University (Korea))

solution-processed OLEDs, interface mixing, impedance spectroscopy

https://doi.org/10.36463/idw.2021.0396

A detailed degradation analysis of solution-processed OLED using impedance spectroscopy yields information about trap formation and serious resistance increase at the mixing interface. By utilizing molecular simulation, this serious degradation can be mainly attributed to the dissociation of the host molecules which has been suffered from exciton-polaron quenching.