Control of the coupling degree between surface plasmon and microcavity mode in dual-cavity OLEDs

Abstract

The metal/dielectric/metal (MDM) multilayer resonator is of increasing interest because of its functionality of surface plasmons generated at the interfaces. We aimed to control the EL spectra of OLED with an MDM electrode by actively utilizing the plasmon-microcavity coupling. The change in EL spectra of OLED with MDM electrode was simulated depending on the design of MDM structures by FDTD simulations. The strength of the plasmon-microcavity coupling can be controlled by the thickness of the Ag film in AZA, which can determine the tuning range of the EL peak position.

Keywords:

• metal/dielectric/metal structure
• microcavity
• mode coupling
• organic light-emitting diode
• surface plasmon

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by the Japan Society for the Promotion of Science (JSPS), Grant-in-Aid for Scientific Research (C) No. 23K04658, and was partly supported by Japan Science and Technology Agency (JST), SICORP Grant No. JPMJSC2108.