Silver Nanoparticle Rings of Controllable Size: Multi-Wavelength SERS Response and High Enhancement of Three Pyridine Derivatives

被引：16

作者：

Khanafer, Maher ^{[1
,4
]}

Izquierdo-Lorenzo, Irene ^{[1
]}

Akil, Suzanna ^{[1
,2
]}

Louarn, Guy ^{[1
,3
]}

Toufaily, Joumana ^{[4
]}

Hamieh, Tayssir ^{[4
]}

Adam, Pierre-Michel

Jradi, Safi ^{[1
]}

机构：

[1] Univ Technol Troyes, ICD UMR6281 CNRS, Lab Nanotechnol & dinstrumentat Optique, 12 rue Marie Curie, Troyes, France

[2] Univ Lorraine, Lab Chim & Phys, 1 Bd, F-57070 Metz, France

[3] Univ Nantes Chemin Houssiniere 2, CNRS, Inst Mat Jean Rouxel, Nantes, France

[4] Lebanese Univ, Lab Mat Catalysis, Environm & Analyt Methods EDST, Lebanon, NH USA

来源：

CHEMISTRYSELECT | 2016年 / 1卷 / 06期

关键词：

SERS; polymer self-assembly; silver nanoparticles; self-organization of nanoparticles; bipyridine; RAMAN-SCATTERING; 2,2'-BIPYRIDINE; SURFACES;

D O I：

10.1002/slct.201600035

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The preparation method of nanoporous poly(methyl methacrylate)( PMMA) containing silver nanoparticles self-organized in rings is highly adaptable, yielding a variety of materials of controllable pore size (ranging from 200 nm to over 5 mu m), nanoparticle size (20 to 200 nm), surface coverage and silver precursor concentration. In this article, it is optimized aiming at a best performance as enhancers for Surface Enhanced Raman Spectroscopy. The versatility of these sensors is shown by multi-wavelength excitation experiment at 457, 488, 514 and 633 nm. Finally, the efficiency of 2,2'-bipyridine, 4,4'-bipyridine and trans-bis-(4,4'-bipyridyl) ethylene as SERS probe molecules is compared using PMMA/Ag-rings. Ag+ ions are shown to play an important role in the adsorption of the target molecules on these surfaces leading to a SERS enhancement factor of 3.783 108 at 488 nm for trans-bis-(4,4'-bipyridyl) ethylene.

引用

页码：1201 / 1206

页数：6

共 29 条

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