Nanoimprinted SERS-active substrates with tunable surface plasmon resonances

被引：160

作者：

Alvarez-Puebla, Ramon

Cui, Bo

Bravo-Vasquez, Juan-Pablo

Veres, Teodor ^{[1
]}

Fenniri, Hicham

机构：

[1] CNR, Natl Inst Nanotechnol, Edmonton, AB T6G 2M9, Canada

[2] Natl Res Council Canada, Inst Ind Mat, Boucherville, PQ J4B 6Y4, Canada

[3] Univ Alberta, Gunning Lemieux Chem Ctr, Edmonton, AB T6G 2G2, Canada

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2007年 / 111卷 / 18期

关键词：

D O I：

10.1021/jp070906s

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：

Nanoimprint lithography and physical vapor deposition were combined to fabricate large-area homogeneously patterned SERS-active substrates with tunable surface plasmon resonances. The plasmon shift observed was connected to the surface nanotopography since (a) the SERS-active nanoparticles on all the substrates investigated were shown to be chemically and structurally similar and (b) the SERS spectra of the analyte investigated were essentially identical for all samples. In addition, the tunability of surface nanotopography was shown to boost the SERS effect via optimal coupling between the substrate's SPR and the incident laser line.

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收藏

页码：6720 / 6723

页数：4

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