Raman amplification in the ultra-small limit of Ag nanoparticles on SiO2 and graphene: Size and inter-particle distance effects

Size, shape and hot spots are crucial to optimize Raman amplification from metallic nanoparticle (NPs). The amplification from radius = 1.8 ± 0.4 nm ultra-small silver NPs was explored. Increasing NP density redshifts and widens their plasmon that, according to simulations for NPs arrays, is origina...

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Bibliographic Details
Main Authors: Sandra Cortijo-Campos, Rafael Ramírez-Jiménez, Esteban Climent-Pascual, Montserrat Aguilar-Pujol, Félix Jiménez-Villacorta, Lidia Martínez, Rafael Jiménez-Riobóo, Carlos Prieto, Alicia de Andrés
Format: Article
Language:English
Published: Elsevier 2020-07-01
Series:Materials & Design
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0264127520302367