Orientation-Dependent Soft Plasmonics of Gold Nanobipyramid Plasmene Nanosheets.
Nano Lett
; 21(1): 389-396, 2021 01 13.
Article
en En
| MEDLINE
| ID: mdl-33337160
ABSTRACT
In parallel to the burgeoning field of soft electronics, soft plasmonics focuses on the design and fabrication of plasmonic structures supported on elastomers and to understand how their properties respond to mechanical deformations. Here, we report on a partial ligand-stripping strategy to fabricate elastomer-supported gold nanobipyramid (NBP) plasmene nanosheets. Unlike spherelike building blocks, NBP-building blocks display complex orientation-dependent plasmonic responses to external strains. By collecting polarized plasmonic resonance spectra in conjunction with electrostatic eigenmode modeling, we reveal simultaneous changes in interparticle spacing and spatial orientations of NBP building blocks under mechanical strains. Such changes are directly related to initial NBP packing orders. Further analysis of strain sensitivities for various NBP plasmenes indicated that plasmonic spectra of â¼45° oriented samples are mostly susceptible to strain at acute polarized angles. The results presented may enable novel applications in future soft optoelectronic devices in sensing, encryption, and data storage.
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1
Banco de datos:
MEDLINE
Asunto principal:
Orientación Espacial
/
Oro
Idioma:
En
Revista:
Nano Lett
Año:
2021
Tipo del documento:
Article