Surface-enhanced Raman scattering in ETPTA inverse photonic crystals with gold nanoparticles

被引：9
作者：
Ashurov, Matin [1 ]
Abdusatorov, Bakhodur [2 ]
Baranchikov, Alexander [3 ]
Klimonsky, Sergey [1 ,4 ]
机构：
[1] Lomonosov Moscow State Univ, Fac Mat Sci, Moscow 119991, Russia
[2] Skolkovo Inst Sci & Technol, Ctr Energy Sci & Technol, HSM Lab, Moscow 121205, Russia
[3] Russian Acad Sci, Kurnakov Inst Gen & Inorgan Chem, Moscow 119991, Russia
[4] Lomonosov Moscow State Univ, Dept Chem, Moscow 119991, Russia
来源：
PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2021年 / 23卷 / 36期
基金：
俄罗斯基础研究基金会;
关键词：
PLASMON RESONANCE; SERS; NANOSTRUCTURES;
D O I：
10.1039/d1cp02958d
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We present a substrate design for surface-enhanced Raman scattering by decorating three-dimensional inverse photonic crystals with a small amount of Au nanoparticles. Photonic crystals with different positions of the photonic stop band were fabricated by inverting opal-type templates using photopolymerization of a trimethylolpropane ethoxylate triacrylate (ETPTA) photocurable resin. Then Au nanoparticles were embedded into inverse ETPTA films by multiple infiltration. Using the methylene blue dye as a test compound, we found that the enhancement factor of the Raman signal is strongly dependent on the spectral position of the photonic stop band, reaching a value of about 1-2 x 10(5) when it coincides with the laser wavelength. The detection limit for methylene blue in solution is of the order of 10(-7) M.
引用
收藏
页码：20275 / 20281
页数：7
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