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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

<a href="/cs/project/GA25-16894S" target="_blank" >GA25-16894S: Stabilita hydrogenovaného grafenu v nanoelektronice studovaná pomocí rastrovací sondové mikroskopie</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Physical Chemistry Letters

ISSN

1948-7185

e-ISSN

—

Svazek periodika

16

Číslo periodika v rámci svazku

35

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

8891-8896

Kód UT WoS článku

001554809800001

EID výsledku v databázi Scopus

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