Nanoparticle-containing structures as a substrate for surface-enhanced Raman scattering

被引：95

作者：

Addison, Christopher J. ^{[1
]}

Brolo, Alexandre G. ^{[1
]}

机构：

[1] Univ Victoria, Dept Chem, Victoria, BC V8W 3V6, Canada

来源：

LANGMUIR | 2006年 / 22卷 / 21期

关键词：

D O I：

10.1021/la061598c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Metallic nanostructures were prepared through the alternate immersion of derivatized glass slides in solutions of gold nanoparticles (NPs) and a propanedithiol linker molecule. Nanostructures consisting of 1-17 depositions of gold NPs were synthesized, and these substrates were characterized using UV-vis spectroscopy and atomic force microscopy. Subsequently, the surface-enhanced Raman scattering (SERS) of oxazine 720 was obtained at two excitation wavelengths (632 and 785 nm) from all substrates. Maximum SERS enhancement was observed for 9 and 13 NP depositions for 632 and 785 nm excitations, respectively. The difference in the number of NP depositions required for maximum enhancement is attributed to different wavelengths which can excite distinct aggregate structures within the metallic substrate. Therefore, these NP-containing structures can be "tuned" to yield maximum SERS enhancement for the excitation source being used by varying the number of NP depositions.

引用

页码：8696 / 8702

页数：7

共 52 条

[1] Preparation and characterization of Ag colloid monolayers [J].

Bright, RM ;

Musick, MD ;

Natan, MJ .

LANGMUIR, 1998, 14 (20) :5695-5701

[2] Chemical and electrochemical Ag deposition onto preformed Au colloid monolayers: Approaches to uniformly-sized surface features with Ag-like optical properties [J].

Bright, RM ;

Walter, DG ;

Musick, MD ;

Jackson, MA ;

Allison, KJ ;

Natan, MJ .

LANGMUIR, 1996, 12 (03) :810-817

[3] Nanohole-enhanced Raman scattering [J].

Brolo, AG ;

Arctander, E ;

Gordon, R ;

Leathem, B ;

Kavanagh, KL .

NANO LETTERS, 2004, 4 (10) :2015-2018

[4] Strong polarized enhanced Raman scattering via optical tunneling through random parallel nanostructures in Au thin films [J].

Brolo, AG ;

Arctander, E ;

Addison, CJ .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (01) :401-405

[5] Surface-enhanced Raman scattering (SERS) from a silver electrode modified with oxazine 720 [J].

Brolo, AG ;

Sanderson, AC .

CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE, 2004, 82 (10) :1474-1480

[6] Ratio of the surface-enhanced anti-Stokes scattering to the surface-enhanced Stokes-Raman scattering for molecules adsorbed on a silver electrode [J].

Brolo, AG ;

Sanderson, AC ;

Smith, AP .

PHYSICAL REVIEW B, 2004, 69 (04)

[7] Surface-enhanced Raman scattering [J].

Campion, A ;

Kambhampati, P .

CHEMICAL SOCIETY REVIEWS, 1998, 27 (04) :241-250

[8] COLLOIDAL METAL-FILMS AS A SUBSTRATE FOR SURFACE-ENHANCED SPECTROSCOPY [J].

CHUMANOV, G ;

SOKOLOV, K ;

GREGORY, BW ;

COTTON, TM .

JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (23) :9466-9471

[9] AFM characterization of the structure of Au-colloid monolayers and their chemical etching [J].

Doron, A ;

Joselevich, E ;

Schlittner, A ;

Willner, I .

THIN SOLID FILMS, 1999, 340 (1-2) :183-188

[10] FRACTAL CHARACTER OF COLD-DEPOSITED SILVER FILMS DETERMINED BY LOW-TEMPERATURE SCANNING-TUNNELING-MICROSCOPY [J].

DOUKETIS, C ;

WANG, ZH ;

HASLETT, TL ;

MOSKOVITS, M .

PHYSICAL REVIEW B, 1995, 51 (16) :11022-11031

← 1 2 3 4 5 6 →