Enhanced Emission from Interlayer Excitons Coupled to Plasmonic Gap Cavities.
Thinh N Tran, Sejeong Kim, Simon JU White, Minh Anh Phan Nguyen, Licheng Xiao, Stefan Strauf, Tieshan Yang, Igor Aharonovich, Zai-Quan Xu
Small | Published : 2021
The emergence of interlayer excitons (IEs) from atomic layered transition metal dichalcogenides (TMDCs) heterostructures has drawn tremendous attention due to their unique and exotic optoelectronic properties. Coupling the IEs into optical cavities provides distinctive electromagnetic environments which plays an important role in controlling multiple optical processes such as optical nonlinear generation or photoluminescence enhancement. Here, the integration of IEs in TMDCs into plasmonic nanocavities based on a nanocube on a metallic mirror is reported. Spectroscopic studies reveal an order of magnitude enhancement of the IE at room temperature and a 5-time enhancement in fluorescence at c..View full abstract