Gold Mesostructures with Tailored Surface Topography and Their Self-Assembly Arrays for Surface-Enhanced Raman Spectroscopy

被引：308

作者：

Fang, Jixiang ^{[1
,3
]}

Du, Shuya ^{[2
]}

Lebedkin, Sergei ^{[3
]}

Li, Zhiyuan ^{[2
]}

Kruk, Robert ^{[3
]}

Kappes, Manfred ^{[3
]}

Hahn, Horst ^{[3
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Sci, MOE Key Lab Nonequilibrium Synth & Modulat Conden, Shann Xi 710049, Peoples R China

[2] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China

[3] KIT, Inst Nanotechnol, D-76021 Karlsruhe, Germany

来源：

NANO LETTERS | 2010年 / 10卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Gold mesostructures; sea urchin-like; surface topography; self-assembly; SERS; HIGH-YIELD SYNTHESIS; SILVER NANOPARTICLES; ORIENTED ATTACHMENT; NANOSCALE ROUGHNESS; CATALYZED GROWTH; SCATTERING; CRYSTALLIZATION; NANOSTRUCTURES; NANOCRYSTALS; NUCLEATION;

D O I：

10.1021/nl103161q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report a facile particle mediated aggregation protocol to synthesize "sea urchin"-like gold mesoparticles with tailored surface topography via a secondary nucleation and growth process. Surprisingly, these multitip Au mesoparticles are capable of self-assembling into monolayer or multiple layer arrays on Si substrates with a convincing reproducibility and homogeneity over large areas. Raman measurements show that these individual sea urchin-like multitipped gold mesoparticles exhibit a high enhancement of surface-enhanced Raman scattering (SERS). In addition, the sea urchin-like mesoparticle arrays display a further enhancement of SERS by 1 or 2 orders of magnitude over the individual mesoparticle due to the formation of additional hot spots between the particles. The current protocol stands out as a potentially interesting approach for the fabrication of technologically important SERS-based sensors.

引用

页码：5006 / 5013

页数：8

共 48 条

[1] High-yield synthesis of multi-branched urchin-like gold nanoparticles [J].

Bakr, Osman M. ;

Wunsch, Benjamin H. ;

Stellacci, Francesco .

CHEMISTRY OF MATERIALS, 2006, 18 (14) :3297-3301

[2] Investigation of surface-enhanced Raman scattering from platinum electrodes using a confocal Raman microscope: dependence of surface roughening pretreatment [J].

Cai, WB ;

Ren, B ;

Li, XQ ;

She, CX ;

Liu, FM ;

Cai, XW ;

Tian, ZQ .

SURFACE SCIENCE, 1998, 406 (1-3) :9-22

[3] Single-crystal nanowires of platinum can be synthesized by controlling the reaction rate of a polyol process [J].

Chen, JY ;

Herricks, T ;

Geissler, M ;

Xia, YN .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (35) :10854-10855

[4] Self-assembly ability of building units in mesocrystal, structural, and morphological transitions in Ag nanostructures growth [J].

Fang, Jixiang ;

Ding, Bingjun ;

Song, Xiaoping .

CRYSTAL GROWTH & DESIGN, 2008, 8 (10) :3616-3622

[5] Dendritic silver nanostructure growth and evolution in replacement reaction [J].

Fang, Jixiang ;

You, Hongjun ;

Kong, Peng ;

Yi, Yan ;

Song, Xiaoping ;

Ding, Bingjun .

CRYSTAL GROWTH & DESIGN, 2007, 7 (05) :864-867

[6] Nanoparticle-aggregated 3D monocrystalline gold dendritic nanostructures [J].

Fang, Jixiang ;

Ma, Xiaoni ;

Cai, Hanhui ;

Song, Xiaoping ;

Ding, Bingjun .

NANOTECHNOLOGY, 2006, 17 (23) :5841-5845

[7] External electric field driven 3D ordering architecture of silver (I) oxide meso-superstructures [J].

Fang, Jixiang ;

Leufke, Philipp M. ;

Kruk, Robert ;

Wang, Di ;

Scherer, Torsten ;

Hahn, Horst .

NANO TODAY, 2010, 5 (03) :175-182

[8] How a silver dendritic mesocrystal converts to a single crystal [J].

Fang, Jixiang ;

Ding, Bingjun ;

Song, Xiaoping ;

Han, Yong .

APPLIED PHYSICS LETTERS, 2008, 92 (17)

[9] Plexcitonic Nanoparticles: Plasmon-Exciton Coupling in Nanoshell-J-Aggregate Complexes [J].

Fofang, Nche T. ;

Park, Tae-Ho ;

Neumann, Oara ;

Mirin, Nikolay A. ;

Nordlander, Peter ;

Halas, Naomi J. .

NANO LETTERS, 2008, 8 (10) :3481-3487

[10] Plasmonic Nanogalaxies: Multiscale Aperiodic Arrays for Surface-Enhanced Raman Sensing [J].

Gopinath, Ashwin ;

Boriskina, Svetlana V. ;

Premasiri, W. Ranjith ;

Ziegler, Lawrence ;

Reinhard, Bjoern M. ;

Dal Negro, Luca .

NANO LETTERS, 2009, 9 (11) :3922-3929

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