22 October 2010 Solvothermal synthesis of platinum nanoparticles and their SERS properties
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Proceedings Volume 7658, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology; 76580H (2010); doi: 10.1117/12.867958
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China
Abstract
The controllable preparation of platinum nanoparticles with defined shapes, including sphere, octahedron, octapods and tetrapods, was realized by varying the concentration of NaNO3 in the solvothermal process. NaNO3 plays a critical role in synthesizing Pt nanoparticles with different shapes. These Pt nanoparticles were self-assembled on glass substrates to study the influence of metal nanoparticles' shape on their SERS enhancement using 4-mercaptopyridine as molecules probes. Thanks to the enhanced local field effect around their sharp corners and edges, those Pt tetrapods exhibit enhanced SERS properties than those particles with other shapes.
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Yong Yang, Zhengren Huang, Dan Li, Masayuki Nogami, "Solvothermal synthesis of platinum nanoparticles and their SERS properties", Proc. SPIE 7658, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, 76580H (22 October 2010); doi: 10.1117/12.867958; https://doi.org/10.1117/12.867958
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KEYWORDS
Platinum

Nanoparticles

Optical spheres

Surface enhanced Raman spectroscopy

Metals

Raman spectroscopy

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