Rodríguez, M.; Shi, L.; Lu, X.; Korgel, B.; Alvarez -Puebla, R.; Meseguer Rico, FJ. (2014). Silicon nanoparticles as Raman scattering enhancers. Nanoscale. 6(11):5666-5670. https://doi.org/10.1039/c4nr00593g
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/87623
Title:
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Silicon nanoparticles as Raman scattering enhancers
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Author:
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Rodríguez, Marie-Isabelle
Shi, Lei
Lu, Xiaotang
Korgel, Brian
Alvarez -Puebla, Ramon
Meseguer Rico, Francisco Javier
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UPV Unit:
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Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química
Universitat Politècnica de València. Centro de Tecnologías Físicas: Acústica, Materiales y Astrofísica - Centre de Tecnologies Físiques: Acústica, Materials i Astrofísica
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Issued date:
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Abstract:
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[EN] In this communication we demonstrate the large amplification values of the Raman signal of organic molecules attached to silicon nanoparticles (SiNPs). Light induced Mie resonances of high refractive index particles ...[+]
[EN] In this communication we demonstrate the large amplification values of the Raman signal of organic molecules attached to silicon nanoparticles (SiNPs). Light induced Mie resonances of high refractive index particles generate strong evanescent electromagnetic (EM) fields, thus boosting the Raman signal of species attached to the nanoparticles. The interest of this process is justified by the wide range of experimental configurations that can be implemented including photonic crystals, the sharp spectral resonances easily tuneable with the particle size, the biocompatibility and biodegradability of silicon, and the possibility of direct analysis of molecules that do not contain functional groups with high affinity for gold and silver. Additionally, silicon nanoparticles present stronger field enhancement due to Mie resonances at larger sizes than gold.
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Subjects:
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Dielectric structures
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Magnetic response
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Spectroscopy
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Nanocavities
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Sensitivity
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Resonances
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Colloids
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Plasmons
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Droplets
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Region
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Copyrigths:
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Reserva de todos los derechos
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Source:
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Nanoscale. (issn:
2040-3364
) (eissn:
2040-3372
)
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DOI:
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10.1039/c4nr00593g
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Publisher:
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Royal Society of Chemistry
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Publisher version:
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http://doi.org/10.1039/c4nr00593g
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Project ID:
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info:eu-repo/grantAgreement/EC/FP7/329131/EU/SERS ultrasensitive universal sensing of proteins through cross-reactive sensor arrays/
info:eu-repo/grantAgreement/MICINN//FIS2009-07812/ES/Coloides De Silicio. Sintesis, Caracterizacion Y Aplicaciones Tecnologicas./
info:eu-repo/grantAgreement/MINECO//MAT2012-35040/ES/APLICACIONES BASADAS EN COLOIDES DE SILICIO/
info:eu-repo/grantAgreement/MICINN//CTQ2011-23167/ES/DETECCION UNIVERSAL ULTRASENSIBLE DE PROTEINAS MEDIANTE SISTEMAS DE SENSORES DE REACTIVIDAD CRUZADA Y SERS/
info:eu-repo/grantAgreement/GVA//PROMETEO%2F2010%2F043/ES/TRANSMISIÓN Y LOCALIZACIÓN DE ONDAS EN METAMATERIALES/
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Thanks:
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The authors acknowledge financial support from the following projects FIS2009-07812, MAT2012-35040, Consolider 2007-0046 Nano light, PROMETEO/2010/043, CTQ2011-23167, and Cross-SEAS, FP7 MC-IEF 329131. L. S. thanks the ...[+]
The authors acknowledge financial support from the following projects FIS2009-07812, MAT2012-35040, Consolider 2007-0046 Nano light, PROMETEO/2010/043, CTQ2011-23167, and Cross-SEAS, FP7 MC-IEF 329131. L. S. thanks the financial support from the MINECO (Estancias de profesores e investigadores extranjeros en centros espanoles) fellowship program.
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Type:
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Artículo
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