Tailoring organic emission using dual nanocavities in planarized photonic crystal structure

Yasutoshi Jimbo; Takashi Asano; Nishiki Yamada; Ryo Kasegawa; Keiji Sugi; Hironori Toyoda; Tatsuya Ichikawa; Tetsuo Minami; Bong-Shik Song; Kenji Ishizaki; Susumu Noda

doi:10.1063/5.0270227

Tailoring organic emission using dual nanocavities in planarized photonic crystal structure

Y Yasutoshi Jimbo (Sony Semiconductor Solutions Corporation 1 , Atsugi, Kanagawa 243-0014,) T Takashi Asano (Department of Electronic Science and Engineering, Kyoto University, Kyoto-daigaku-katsura 2 , Nishikyo-ku, Kyoto 615-8510,) N Nishiki Yamada (Sony Semiconductor Solutions Corporation 1 , Atsugi, Kanagawa 243-0014,) R Ryo Kasegawa (Sony Semiconductor Solutions Corporation 1 , Atsugi, Kanagawa 243-0014,) K Keiji Sugi (Sony Semiconductor Solutions Corporation 1 , Atsugi, Kanagawa 243-0014,) H Hironori Toyoda (Sony Semiconductor Solutions Corporation 1 , Atsugi, Kanagawa 243-0014,) T Tatsuya Ichikawa (Sony Semiconductor Solutions Corporation 1 , Atsugi, Kanagawa 243-0014,) T Tetsuo Minami (Sony Semiconductor Solutions Corporation 1 , Atsugi, Kanagawa 243-0014,) B Bong-Shik Song (Department of Electronic Science and Engineering, Kyoto University, Kyoto-daigaku-katsura 2 , Nishikyo-ku, Kyoto 615-8510,) K Kenji Ishizaki (Department of Electronic Science and Engineering, Kyoto University, Kyoto-daigaku-katsura 2 , Nishikyo-ku, Kyoto 615-8510,) S Susumu Noda

Abstract

This study investigates the feasibility of tailoring organic emission profiles using adjacent nanocavities in a planarized photonic crystal, a concept that holds potential for practical photonic devices. The photonic crystal, made of silicon nitride, is fabricated on a SiO2/Si substrate. The holes of the photonic crystal are filled with spin-on-glass, and an organic emissive layer is deposited on top. Despite the narrowing of the photonic bandgap due to the planarization, a sharp emission peak with a quality factor of approximately 400 is observed in micro-photoluminescence measurements, attributed to the careful design of nanocavities. Furthermore, we investigate the influence of a nearby nanocavity through simulations and experiments. It is observed that two cavities can operate independently, even at smaller inter-cavity distances, by detuning their resonant wavelengths. This capability facilitates the dense and scalable integration of nanocavities for future applications.

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Article Details

Journal Applied Physics Letters

Volume / Issue Vol. 126, Issue 23

Published June 09, 2025

DOI 10.1063/5.0270227

ISSN 0003-6951

Publisher American Institute of Physics

Journal Info

Applied Physics Letters

American Institute of Physics

ISSN: 0003-6951 Physical Sciences