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Enhancement of the R6G fluorescence by gold nanoparticle depositions in porous silicon Bragg reflectors
Author(s) -
Shi Fugui,
Jia Zhenhong,
Lv Xiaoyi,
Zhang Hongyan,
Zhou Jun
Publication year - 2015
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.201431817
Subject(s) - porous silicon , silicon , materials science , rhodamine 6g , fluorescence , nanoparticle , rhodamine , porosity , nanotechnology , optoelectronics , optics , composite material , physics
We report on the fluorescence enhancement induced by gold nanoparticles (Au NPs) deposited on porous silicon Bragg reflectors (Bragg PS). The rhodamine 6 G (R6G) fluorescence was studied on single‐layer porous silicon films and porous silicon Bragg reflectors. By comparison, R6G fluorescence of porous silicon films with Au NPs infiltrated is about two times that of porous silicon films without Au NPs. The R6G fluorescence of this porous silicon Bragg reflectors with Au NPs infiltrated is also stronger than the single‐layered porous silicon films (∼2.3‐fold) with Au NPs infiltrated. Such substrates with a multiple enhancement of the fluorescence have great potential for applications in the fields of medical diagnostics and biotechnology.