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Growth of Gold Nanoparticles in a Glass Matrix by Continuous Laser Irradiation for Efficient Surface Enhanced Raman Scattering
Author(s) -
Faraj Rim,
Goutaland François,
Ollier Nadège,
Cattaruzza Elti,
Vocanson Francis
Publication year - 2019
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201800548
Subject(s) - materials science , surface plasmon resonance , raman spectroscopy , colloidal gold , rhodamine 6g , silver nanoparticle , soda lime glass , analytical chemistry (journal) , raman scattering , nanoparticle , substrate (aquarium) , surface enhanced raman spectroscopy , nanotechnology , optics , chemistry , composite material , physics , oceanography , chromatography , geology , fluorescence
The synthesis of a soda‐lime glass doped by gold nanoparticles (Nps) is achieved using successively thermal poling and continuous wave (cw) ultraviolet (UV) laser exposure. The formation of gold Nps is undoubtedly proved by an absorption band characteristic of their surface plasmon resonance (SPR), and by scanning electron microscopy, which reveals Nps of about 40 nm in diameter, located in the very near surface region of the glass. Absorption spectroscopy also suggests the formation of bimetallic silver‐gold Nps in systems prepared by using thermal poling and laser exposure of a glass previously doped by silver ions using ion exchange. Finally, the low detection limit of Rhodamine 6G (R6G) measured by surface‐enhanced Raman spectroscopy proves the potential of our gold‐doped glass as an efficient Raman substrate, which offers an alternative to silver Nps doped glass.