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Pregled bibliografske jedinice broj: 991719

Near-Infrared Surface-Enhanced Raman Scattering on Silver-Coated Porous Silicon Photonic Crystals


Škrabić, Marko; Kosović, Marin; Gotić, Marijan; Mikac, Lara; Ivanda, Mile; Gamulin, Ozren
Near-Infrared Surface-Enhanced Raman Scattering on Silver-Coated Porous Silicon Photonic Crystals // Nanomaterials, 9 (2019), 3; 421, 15 doi:10.3390/nano9030421 (međunarodna recenzija, članak, znanstveni)


Naslov
Near-Infrared Surface-Enhanced Raman Scattering on Silver-Coated Porous Silicon Photonic Crystals

Autori
Škrabić, Marko ; Kosović, Marin ; Gotić, Marijan ; Mikac, Lara ; Ivanda, Mile ; Gamulin, Ozren

Izvornik
Nanomaterials (2079-4991) 9 (2019), 3; 421, 15

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
SERS ; near-infrared ; crystal silicon photoluminescence ; porous silicon photonic crystals

Sažetak
Surface-enhanced Raman scattering (SERS) with near-infrared (NIR) excitation offers a safe way for the detection and study of fragile biomolecules. In this work, we present the possibility of using silver-coated porous silicon photonic crystals as SERS substrates for near-infrared (1064 nm) excitation. Due to the deep penetration of NIR light inside silicon, the fabrication of photonic crystals was necessary to quench the band gap photoluminescence of silicon crystal, which acts as mechanical support for the porous layer. Optimal parameters of the immersion plating process that gave maximum enhancement were found and the activity of SERS substrates was tested using rhodamine 6G and crystal violet dye molecules, yielding significant SERS enhancement for off-resonant conditions. To our knowledge, this is the first time that the 1064 nm NIR laser excitation is used for obtaining the SERS effect on porous silicon as a substrate.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
HRZZ-IP-2014-09-7046 - Hibriridne silicijske nanstrukture za senzorik (Mile Ivanda, )
KK.01.1.1.01.0001

Ustanove
Institut "Ruđer Bošković", Zagreb,
Medicinski fakultet, Zagreb,
Prirodoslovno-matematički fakultet, Split

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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