Size-dependent complex dielectric function of Ni, Mo, W, Pb, Zn and Na nanoparticles : Application to sizing
- Autores
- Muñetón Arboleda, David; Santillán, Jesica María José; Mendoza Herrera, Luis Joaquín; Muraca, Diego; Schinca, Daniel Carlos; Scaffardi, Lucía Beatriz
- Año de publicación
- 2016
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- This work determines the size dependent metal nanoparticle (NP) dielectric function from a top-down approach using the bulk experimental refractive index as a starting point. Freeelectron damping constant (γfree) and plasma frequency (ωp) parameters in the Drude model are calculated for nickel (Ni), molybdenum (Mo), tungsten (W), lead (Pb), zinc (Zn) and sodium (Na) using a method developed in our group. Determined γfree and ωp parameters allow to develop an expression that improves the precision in reproducing the discrete metal bulk dielectric function in a wide wavelength range (UV-FIR). The bulk dielectric function is modified for describing the nanometric case by adding size corrective terms for free and bound electrons contributions. As an application of this study we characterize Ni spherical NPs synthesized by ultrafast laser ablation of a solid target in water. Using Mie theory together with the size-dependent dielectric function, we theoretically reproduce its experimental extinction spectrum. From this fitting, composition and size distribution of the particles in the colloidal suspension may be derived. Transmission electron microscopy (TEM) results agree with the sizes and structure derived from optical extinction spectroscopy (OES).
Facultad de Ciencias Exactas
Centro de Investigaciones Ópticas
Facultad de Ingeniería - Materia
-
Ingeniería
Ciencias Exactas
Física
Dielectric function
Metal nanoparticles
Size dependent optical properties - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/100043
Ver los metadatos del registro completo
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Size-dependent complex dielectric function of Ni, Mo, W, Pb, Zn and Na nanoparticles : Application to sizingMuñetón Arboleda, DavidSantillán, Jesica María JoséMendoza Herrera, Luis JoaquínMuraca, DiegoSchinca, Daniel CarlosScaffardi, Lucía BeatrizIngenieríaCiencias ExactasFísicaDielectric functionMetal nanoparticlesSize dependent optical propertiesThis work determines the size dependent metal nanoparticle (NP) dielectric function from a top-down approach using the bulk experimental refractive index as a starting point. Freeelectron damping constant (γ<sub>free</sub>) and plasma frequency (ω<sub>p</sub>) parameters in the Drude model are calculated for nickel (Ni), molybdenum (Mo), tungsten (W), lead (Pb), zinc (Zn) and sodium (Na) using a method developed in our group. Determined γ<sub>free</sub> and ω<sub>p</sub> parameters allow to develop an expression that improves the precision in reproducing the discrete metal bulk dielectric function in a wide wavelength range (UV-FIR). The bulk dielectric function is modified for describing the nanometric case by adding size corrective terms for free and bound electrons contributions. As an application of this study we characterize Ni spherical NPs synthesized by ultrafast laser ablation of a solid target in water. Using Mie theory together with the size-dependent dielectric function, we theoretically reproduce its experimental extinction spectrum. From this fitting, composition and size distribution of the particles in the colloidal suspension may be derived. Transmission electron microscopy (TEM) results agree with the sizes and structure derived from optical extinction spectroscopy (OES).Facultad de Ciencias ExactasCentro de Investigaciones ÓpticasFacultad de Ingeniería2016-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf75302-75311http://sedici.unlp.edu.ar/handle/10915/100043enginfo:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/11336/49243info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0022-3727/49/7/075302/metainfo:eu-repo/semantics/altIdentifier/issn/0022-3727info:eu-repo/semantics/altIdentifier/doi/10.1088/0022-3727/49/7/075302info:eu-repo/semantics/altIdentifier/hdl/11336/49243info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:20:05Zoai:sedici.unlp.edu.ar:10915/100043Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:20:06.167SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Size-dependent complex dielectric function of Ni, Mo, W, Pb, Zn and Na nanoparticles : Application to sizing |
title |
Size-dependent complex dielectric function of Ni, Mo, W, Pb, Zn and Na nanoparticles : Application to sizing |
spellingShingle |
Size-dependent complex dielectric function of Ni, Mo, W, Pb, Zn and Na nanoparticles : Application to sizing Muñetón Arboleda, David Ingeniería Ciencias Exactas Física Dielectric function Metal nanoparticles Size dependent optical properties |
title_short |
Size-dependent complex dielectric function of Ni, Mo, W, Pb, Zn and Na nanoparticles : Application to sizing |
title_full |
Size-dependent complex dielectric function of Ni, Mo, W, Pb, Zn and Na nanoparticles : Application to sizing |
title_fullStr |
Size-dependent complex dielectric function of Ni, Mo, W, Pb, Zn and Na nanoparticles : Application to sizing |
title_full_unstemmed |
Size-dependent complex dielectric function of Ni, Mo, W, Pb, Zn and Na nanoparticles : Application to sizing |
title_sort |
Size-dependent complex dielectric function of Ni, Mo, W, Pb, Zn and Na nanoparticles : Application to sizing |
dc.creator.none.fl_str_mv |
Muñetón Arboleda, David Santillán, Jesica María José Mendoza Herrera, Luis Joaquín Muraca, Diego Schinca, Daniel Carlos Scaffardi, Lucía Beatriz |
author |
Muñetón Arboleda, David |
author_facet |
Muñetón Arboleda, David Santillán, Jesica María José Mendoza Herrera, Luis Joaquín Muraca, Diego Schinca, Daniel Carlos Scaffardi, Lucía Beatriz |
author_role |
author |
author2 |
Santillán, Jesica María José Mendoza Herrera, Luis Joaquín Muraca, Diego Schinca, Daniel Carlos Scaffardi, Lucía Beatriz |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
Ingeniería Ciencias Exactas Física Dielectric function Metal nanoparticles Size dependent optical properties |
topic |
Ingeniería Ciencias Exactas Física Dielectric function Metal nanoparticles Size dependent optical properties |
dc.description.none.fl_txt_mv |
This work determines the size dependent metal nanoparticle (NP) dielectric function from a top-down approach using the bulk experimental refractive index as a starting point. Freeelectron damping constant (γ<sub>free</sub>) and plasma frequency (ω<sub>p</sub>) parameters in the Drude model are calculated for nickel (Ni), molybdenum (Mo), tungsten (W), lead (Pb), zinc (Zn) and sodium (Na) using a method developed in our group. Determined γ<sub>free</sub> and ω<sub>p</sub> parameters allow to develop an expression that improves the precision in reproducing the discrete metal bulk dielectric function in a wide wavelength range (UV-FIR). The bulk dielectric function is modified for describing the nanometric case by adding size corrective terms for free and bound electrons contributions. As an application of this study we characterize Ni spherical NPs synthesized by ultrafast laser ablation of a solid target in water. Using Mie theory together with the size-dependent dielectric function, we theoretically reproduce its experimental extinction spectrum. From this fitting, composition and size distribution of the particles in the colloidal suspension may be derived. Transmission electron microscopy (TEM) results agree with the sizes and structure derived from optical extinction spectroscopy (OES). Facultad de Ciencias Exactas Centro de Investigaciones Ópticas Facultad de Ingeniería |
description |
This work determines the size dependent metal nanoparticle (NP) dielectric function from a top-down approach using the bulk experimental refractive index as a starting point. Freeelectron damping constant (γ<sub>free</sub>) and plasma frequency (ω<sub>p</sub>) parameters in the Drude model are calculated for nickel (Ni), molybdenum (Mo), tungsten (W), lead (Pb), zinc (Zn) and sodium (Na) using a method developed in our group. Determined γ<sub>free</sub> and ω<sub>p</sub> parameters allow to develop an expression that improves the precision in reproducing the discrete metal bulk dielectric function in a wide wavelength range (UV-FIR). The bulk dielectric function is modified for describing the nanometric case by adding size corrective terms for free and bound electrons contributions. As an application of this study we characterize Ni spherical NPs synthesized by ultrafast laser ablation of a solid target in water. Using Mie theory together with the size-dependent dielectric function, we theoretically reproduce its experimental extinction spectrum. From this fitting, composition and size distribution of the particles in the colloidal suspension may be derived. Transmission electron microscopy (TEM) results agree with the sizes and structure derived from optical extinction spectroscopy (OES). |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-01 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/100043 |
url |
http://sedici.unlp.edu.ar/handle/10915/100043 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
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openAccess |
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http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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