Photoluminescence enhancement in monolayer MoS<sub>2</sub> and self-assembled 3D photonic crystal heterostructures

Xijun Wu; Chunyao Zhang; Chunyao Zhang; Hongxin Ge; H. Liu; H. Liu; Zhencheng Shang; Yudong Niu

doi:10.1364/OL.447379

Optics Letters
Vol. 47,
Issue 5,
pp. 1267-1270
(2022)
•https://doi.org/10.1364/OL.447379

Photoluminescence enhancement in monolayer MoS₂ and self-assembled 3D photonic crystal heterostructures

Xijun Wu, Chunyao Zhang, Hongxin Ge, H. Liu, Zhencheng Shang, and Yudong Niu

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Xijun Wu, Chunyao Zhang, Hongxin Ge, H. Liu, Zhencheng Shang, and Yudong Niu, "Photoluminescence enhancement in monolayer MoS₂ and self-assembled 3D photonic crystal heterostructures," Opt. Lett. 47, 1267-1270 (2022)

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Abstract

Self-assembled photonic crystals (PCs) have promising applications in enhancing and directional manipulation of the photoemission due to their photonic bandgaps. Here, we employed self-assembled 3D polystyrene PCs to enhance the photoluminescence (PL) of monolayer molybdenum disulfide (MoS₂). Through tuning the photonic bandgap of the polystyrene crystals to overlap with the direct emission band of monolayer MoS₂, the MoS₂/3D-PC heterostructure showed a maximum 12-fold PL enhancement, and Rabi splitting was also observed in the reflection spectrum. The heterostructure is expected to be useful in nanophotonic emitting devices.

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Supplementary Material (1)

Name	Description
Supplement 1	Exciton luminescence ratio, simulation of SiC, and experimental steps

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