Plasmonic Response to Liquid-Solid Phase Transition in Individual Gallium Nanoparticles

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F26%3A0198643" target="_blank" >RIV/00216305:26620/26:0198643 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/full/10.1021/acs.jpclett.5c02035" target="_blank" >https://pubs.acs.org/doi/full/10.1021/acs.jpclett.5c02035</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.jpclett.5c02035" target="_blank" >10.1021/acs.jpclett.5c02035</a>

Result language
angličtina
Original language name
Plasmonic Response to Liquid-Solid Phase Transition in Individual Gallium Nanoparticles
Original language description
Gallium is a phase-changing plasmonic material offering ultraviolet-to-near-infrared tunability, facile and scalable preparation, and good stability of nanoparticles. In this work, we explore the impact of the liquid-to-solid phase transition on their plasmonic properties at the single-particle level by analytical transmission electron microscopy. We observed a phase transition from liquid to beta-gallium with a freezing temperature around -135 degrees C and a melting temperature around -20 degrees C. We have shown that the dipole mode of localized surface plasmon resonances can be tuned through their size from the ultraviolet to visible spectral region, while the differences in localized surface plasmon energies between liquid gallium at 25 degrees C and beta-gallium nanoparticles at -177 degrees C are minor. Our results show that the performance of gallium nanoparticles is, in the case of temperature-dependent experiments, unaffected by the liquid-to-solid phase change of gallium and paves the way for suppressing the nonradiative recombination in surface-enhanced Raman spectroscopy at cryogenic temperature.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
<a href="/en/project/GA25-16894S" target="_blank" >GA25-16894S: Stability of Hydrogenated Graphene in Nanoelectronics Studied by Scanning Probe Microscopy</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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