NDLI: Evaluating the plasmon-exciton interaction in ZnO tetrapods coupled with gold nanostructures by nanoscale cathodoluminescence

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Evaluating the plasmon-exciton interaction in ZnO tetrapods coupled with gold nanostructures by nanoscale cathodoluminescence

Content Provider	Scilit
Author	Villani, M. Rossi, F. Calestani, D. Salviati, G. Fabbri, F.
Copyright Year	2021
Description	Journal: Nano Express Plasmon-exciton coupling is gaining increasing interest for enhancing the performance of optoelectronic, photonic and photo-catalytic devices. Herein we evaluate the interaction of excitons in zinc oxide tetrapods with surface plasmons of gold nanostructures with different morphologies. The gold nanostructures are grown in situ on ZnO tetrapods by means of a photochemical process, resulting in clean interfaces. The modification of the synthesis parameters results in different morphologies, as isolated nanoparticles, nano-domes or nanoparticles aggregates. Plasmon-exciton interaction is evaluated by means of cathodoluminescence spectroscopy and mapping at the nanoscale. The ZnO excitonic emission is strongly blue-shifted and broadened in close proximity of the gold nanostructures. This effect is explained by the formation of a Schottky barrier that is strongly mediated by the morphology of metal nanostructures.
Related Links	https://iopscience.iop.org/article/10.1088/2632-959X/abe277/pdf
e-ISSN	2632959X
DOI	10.1088/2632-959x/abe277
Journal	Nano Express
Issue Number	1
Volume Number	2
Language	English
Publisher	IOP Publishing
Publisher Date	2021-02-10
Access Restriction	Open
Subject Keyword	Journal: Nano Express Gold Nanostructures Plasmon Exciton Interaction Is Evaluated
Content Type	Text
Resource Type	Article

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