Giant Photoluminescence Enhancement of Monolayer WSe2 Using a Plasmonic Nanocavity with On-Demand Resonance
Chenyang Li,
Huan Luo,
Liping Hou
et al.
Abstract:Monolayer transition metal dichalcogenides (TMDs) are considered promising building blocks for nextgeneration photonic and optoelectronic devices, owing to their fascinating optical properties. However, their inherent weak light absorption and low quantum yield severely hinder their practical applications. Here, we report up to 18000-fold photoluminescence (PL) enhancement in a monolayer WSe 2 -coupled plasmonic nanocavity. A spectroscopy-assisted nanomanipulation technique enables the assembly of a nanocavity… Show more
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