Plasma Based Synthesis, Electron Microscopy, and Optical Characterization of Au-, Ag-, and Ag/Au-Core鈥揝hell Nanoparticles

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• 作者：Sandra Peglow ; Marga-Martina Pohl ; Angela Kruth ; Volker Br眉ser
• 刊名：Journal of Physical Chemistry C
• 出版年：2015
• 出版时间：January 8, 2015
• 年：2015
• 卷：119
• 期：1
• 页码：563-572
• 全文大小：719K
• ISSN：1932-7455

文摘

Metal nanoparticles are commonly used for a wide range of applications. This paper presents a novel synthesis method using plasma vapor deposition and a subsequent thermal treatment to produce homogeneous particles within the nanometer range. A combination of high resolution transmission electron microscopy and scanning electron microscopy studies as well as ultraviolet/visible light transmission measurements are employed in order to characterize crystallographic, microstructural, and optical properties of gold, silver, and core鈥搒hell bimetallic nanostructures on a titania surface. The nanostructural size and composition of the core鈥搒hell nanostructures and therefore their optical properties could be directly adjusted by the plasma process parameters and/or the postdeposition thermal treatment of the samples.