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초록

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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