Handbook of Porous Silicon 2016
DOI: 10.1007/978-3-319-04508-5_107-1
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SERS Analysis with Porous Silicon

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“…32 The main advantage of PSi-based hybrid platforms is related to their superior sensing performance compared to the individual components, in terms of, dual-mode detection, signal enhancement, higher sensitivity, and improved signal stability. 32 As to decoration of PSi with metal nanoparticles (e.g., AuNPs), this was mainly investigated for SERS applications, 38 in which PSi did not significantly contribute to the optical signal transduction, serving only as support matrix for the in situ direct reduction of the metal nanostructures on the PSi surface. 39 Herein, we report on the formation of controlled AuNPLs on PSi interferometers and DBRs via LbL nanoassembling of a positively charged polyelectrolyte, namely, poly(allylamine hydrochloride) (PAH), and negatively charged citrate-capped AuNPs, which were synthesized according to the Turkevich 40,41 method or by chemical reduction.…”
Section: ■ Introductionmentioning
confidence: 99%
“…32 The main advantage of PSi-based hybrid platforms is related to their superior sensing performance compared to the individual components, in terms of, dual-mode detection, signal enhancement, higher sensitivity, and improved signal stability. 32 As to decoration of PSi with metal nanoparticles (e.g., AuNPs), this was mainly investigated for SERS applications, 38 in which PSi did not significantly contribute to the optical signal transduction, serving only as support matrix for the in situ direct reduction of the metal nanostructures on the PSi surface. 39 Herein, we report on the formation of controlled AuNPLs on PSi interferometers and DBRs via LbL nanoassembling of a positively charged polyelectrolyte, namely, poly(allylamine hydrochloride) (PAH), and negatively charged citrate-capped AuNPs, which were synthesized according to the Turkevich 40,41 method or by chemical reduction.…”
Section: ■ Introductionmentioning
confidence: 99%