Proceedings Article | 19 June 2024
KEYWORDS: Organic light emitting diodes, Polaritons, Optical microcavities, Excitons, Electroluminescence, Chemistry, Semiconductors, Photonics, Organic semiconductors, Optoelectronic devices
In this presentation, I discuss our recent study investigating the influence of strong coupling in polariton organic light-emitting diodes using time-resolved electroluminescence studies [1]. We fabricated bottom-emitting polariton OLEDs, employing the well-established polariton TDAF molecular semiconductor between aluminum electrodes. Our analysis, based on a model of coupled rate equations, considered all major mechanisms contributing to delayed electroluminescence in organic emitters. We found that in our devices emission dynamics remained unmodified in the presence of strong coupling. I will also discuss the prospects of strong coupling and photonics as an alternative route to investigate material properties that are usually inaccessible. This direction may offer new avenues for OLEDs to benefit from polaritonic research [2].
[1] A. G. Abdelmagid, H. A. Qureshi, M. A. Papachatzakis, O. Siltanen, M. Kumar, A. Ashokan, S. Salman, K. Luoma, and K. S. Daskalakis, arXiv:2309.12737, (2023).
[2] E. Palo, M. A. Papachatzakis, A. Abdelmagid, H. Qureshi, M. Kumar, M. Salomaki, and K. S. Daskalakis, The Journal of Physical Chemistry C 127, 14255, 2023.
