Strong surface enhanced Raman scattering from gold nanoarrays obtained by direct laser writing

被引：5
|
作者：
Ivanov, V. G. [1 ]
Todorov, N. D. [2 ]
Petrov, L. S. [3 ]
Ritacco, T. [2 ,3 ]
Giocondo, M. [2 ]
Vlakhov, E. S. [4 ]
机构：
[1] Univ Sofia, Fac Phys, 5 James Bourchier Blvd, Sofia 1164, Bulgaria
[2] CNR, Ist Nanotecnol, Nanotec SS Cosenza, Ponte P Bucci Cubo 31C, I-87036 Arcavacata Di Rende, CS, Italy
[3] Univ Calabria, Dipartmento Fis, Ponte Pietro Bucci Cubo 33-B, I-87036 Arcavacata Di Rende, CS, Italy
[4] Bulgarian Acad Sci, Inst Solid State Phys, 72 Tzarigradsko Chaussee, BU-1784 Sofia, Bulgaria
来源：
INERA CONFERENCE: VAPOR PHASE TECHNOLOGIES FOR METAL OXIDE AND CARBON NANOSTRUCTURES | 2016年 / 764卷
关键词：
D O I：
10.1088/1742-6596/764/1/012023
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report for surface enhanced Raman scattering (SERS) from arrays of gold nanoparticles produced by 2-photons photo-reduction of the metallic precursor (HAuCl4) hosted in a Poly-Vinyl Alcohol (PVA) matrix, on glass substrates. Samples with the same pattern but featuring different nanoparticles size and density were obtained by varying the writing laser power and scanning speed. The Raman spectra were recorded from samples immersed in a solution of rhodamine-6G (R6G), as well as, after exposure of the samples in xylene. SERS enhancement factors of up to similar to 10(4) were obtained for both analytes. The measurements show that the SERS enhancement is maximized on golden strips produced at higher writing laser power and lower scanning speed, where closer nanoparticles packing is obtained..
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页数：5
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