Data/hora: 17/06/2024 04:18:49

Provedor de dados: 	5	
País: 	France	
Título: 	Comparison of adhesion layers of gold on silicate glasses for SERS detection	
Autores: 	Colas, Florent; Barchiesi, D.; Kessentini, S.; Toury, T.; De La Chapelle, M. Lamy.	
Data: 	2015-11	
Ano: 	2015	
Palavras-chave: 	Surface-enhanced raman scattering; Adhesion layer; Nanocylinder; Discrete dipole approximation.	
Resumo: 	Gold is one of the most widely used metals for building up plasmonic devices. Although slightly less efficient than silver for producing sharp resonance, its chemical properties make it one of the best choices for designing sensors. Sticking gold on a silicate glass substrate requires an adhesion layer, whose effect has to be taken into account. Traditionally, metals (Cr or Ti) or dielectric materials (TiO2 or Cr2O3 ) are deposited between the glass and the nanoparticle. Recently, indium tin oxide and (3-mercaptopropyl)trimethoxysilane (MPTMS) were used as a new adhesion layer. The aim of this work is to compare these six adhesion layers for surface- enhanced Raman scattering sensors by numerical modeling. The near-field and the far-field optical responses of gold nanocylinders on the different adhesion layers are then calculated. It is shown that MPTMS leads to the highest field enhancement, slightly larger than other dielectric materials. We attributed this effect to the lower refractive index of MPTMS compared with the others.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	http://archimer.ifremer.fr/doc/00298/40907/40083.pdf

DOI:10.1088/2040-8978/17/11/114010

http://archimer.ifremer.fr/doc/00298/40907/	
Editor: 	Iop Publishing Ltd	
Formato: 	application/pdf	
Fonte: 	Journal Of Optics (2040-8978) (Iop Publishing Ltd), 2015-11 , Vol. 17 , N. 11 , P. 1-7	
Fonte: 	2015 IOP Publishing Ltd Printed in the UK

info:eu-repo/semantics/openAccess

restricted use