Cargando…

Thermodynamically induced in Situ and Tunable Cu Plasmonic Behaviour

The Cu nanoparticles (Cu NPs) were grown in soda-lime glass matrix through Cu(+) ↔ Na(+) ion exchange methods under thermal annealing in an open environment and studied variation in their size on tunable plasmonic behaviour, optical absorption spectra and photoluminescence (PL). A blue shift from 57...

Descripción completa

Detalles Bibliográficos
Autores principales: Inwati, Gajendra Kumar, Rao, Yashvant, Singh, Man
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5813046/
https://www.ncbi.nlm.nih.gov/pubmed/29445223
http://dx.doi.org/10.1038/s41598-018-20478-y
_version_ 1783300110423162880
author Inwati, Gajendra Kumar
Rao, Yashvant
Singh, Man
author_facet Inwati, Gajendra Kumar
Rao, Yashvant
Singh, Man
author_sort Inwati, Gajendra Kumar
collection PubMed
description The Cu nanoparticles (Cu NPs) were grown in soda-lime glass matrix through Cu(+) ↔ Na(+) ion exchange methods under thermal annealing in an open environment and studied variation in their size on tunable plasmonic behaviour, optical absorption spectra and photoluminescence (PL). A blue shift from 570 to 560 nm was observed in localized surface plasmon resonance (SPR) of Cu NPs from 550 to 650 °C. A mutual relation between size and surface plasmon resonance with full width half maxima (FWHM) has been derived for plasmonic properties at variable temperatures. Structural investigations of embedded Cu NPs have been confirmed by using HRTEM and EDX. Grazing incidence X-ray diffraction (GIXRD) had identified a crystalline nature of Cu NPs under annealed conditions. XPS, Raman and secondary ion mass spectroscopies (SIMS) have identified an embedding behaviour of Cu NPs in glass matrix. Plasmonic and thermodynamic properties of embedded Cu NPs have explained their in situ thermal growth mechanism for efficient distribution where enthalpy (∆H), entropy (∆S) and Gibbs free energy (∆G) have interpreted their temperature driven Cu NPs growth. An interdependence of ∆H, ∆S and ∆G has been developed vis-a-vis activation energy on an extent of 12.54 J/mol.
format Online
Article
Text
id pubmed-5813046
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-58130462018-02-21 Thermodynamically induced in Situ and Tunable Cu Plasmonic Behaviour Inwati, Gajendra Kumar Rao, Yashvant Singh, Man Sci Rep Article The Cu nanoparticles (Cu NPs) were grown in soda-lime glass matrix through Cu(+) ↔ Na(+) ion exchange methods under thermal annealing in an open environment and studied variation in their size on tunable plasmonic behaviour, optical absorption spectra and photoluminescence (PL). A blue shift from 570 to 560 nm was observed in localized surface plasmon resonance (SPR) of Cu NPs from 550 to 650 °C. A mutual relation between size and surface plasmon resonance with full width half maxima (FWHM) has been derived for plasmonic properties at variable temperatures. Structural investigations of embedded Cu NPs have been confirmed by using HRTEM and EDX. Grazing incidence X-ray diffraction (GIXRD) had identified a crystalline nature of Cu NPs under annealed conditions. XPS, Raman and secondary ion mass spectroscopies (SIMS) have identified an embedding behaviour of Cu NPs in glass matrix. Plasmonic and thermodynamic properties of embedded Cu NPs have explained their in situ thermal growth mechanism for efficient distribution where enthalpy (∆H), entropy (∆S) and Gibbs free energy (∆G) have interpreted their temperature driven Cu NPs growth. An interdependence of ∆H, ∆S and ∆G has been developed vis-a-vis activation energy on an extent of 12.54 J/mol. Nature Publishing Group UK 2018-02-14 /pmc/articles/PMC5813046/ /pubmed/29445223 http://dx.doi.org/10.1038/s41598-018-20478-y Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Inwati, Gajendra Kumar
Rao, Yashvant
Singh, Man
Thermodynamically induced in Situ and Tunable Cu Plasmonic Behaviour
title Thermodynamically induced in Situ and Tunable Cu Plasmonic Behaviour
title_full Thermodynamically induced in Situ and Tunable Cu Plasmonic Behaviour
title_fullStr Thermodynamically induced in Situ and Tunable Cu Plasmonic Behaviour
title_full_unstemmed Thermodynamically induced in Situ and Tunable Cu Plasmonic Behaviour
title_short Thermodynamically induced in Situ and Tunable Cu Plasmonic Behaviour
title_sort thermodynamically induced in situ and tunable cu plasmonic behaviour
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5813046/
https://www.ncbi.nlm.nih.gov/pubmed/29445223
http://dx.doi.org/10.1038/s41598-018-20478-y
work_keys_str_mv AT inwatigajendrakumar thermodynamicallyinducedinsituandtunablecuplasmonicbehaviour
AT raoyashvant thermodynamicallyinducedinsituandtunablecuplasmonicbehaviour
AT singhman thermodynamicallyinducedinsituandtunablecuplasmonicbehaviour