Enhancement of exciton-plasmon coupling via functional plasmonic metal oxide metastructures

Seyed M. Sadeghi

doi:10.1117/12.2677527

4 October 2023 Enhancement of exciton-plasmon coupling via functional plasmonic metal oxide metastructures

Seyed M. Sadeghi

Proceedings Volume 12647, Active Photonic Platforms (APP) 2023; 126470J (2023) https://doi.org/10.1117/12.2677527
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States

Abstract

Plasmonic metal-oxide metastructures comprise arrays of Au nanoantennas embedded in Si layers, with a top ultrathin layer of Al oxide, supporting an Au/Si Schottky junction in the vicinity of a Si/Al oxide charge barrier. In such structures the hot electrons generated by nonradiative decay of plasmons can be captured by the Schottky junctions, forming an electrostatic field via charge accumulation in the Si layers. When thin layers of semiconductor quantum dots are placed on top of such structures, such a field suppresses their non-radiative decay rates, making them far more efficient emitters. We study the impact of plasmon modes of the Au nanoantennas on the exciton-plasmon coupling enhancement supported by such a material platform.

Conference Presentation

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Seyed M. Sadeghi "Enhancement of exciton-plasmon coupling via functional plasmonic metal oxide metastructures", Proc. SPIE 12647, Active Photonic Platforms (APP) 2023, 126470J (4 October 2023); https://doi.org/10.1117/12.2677527

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