Shanmugam, Sangaraju and Viswanathan, Balasubramanian and Varadarajan, Thirukkallam K. (2007) Photochemically reduced polyoxometalate assisted generation of silver and gold nanoparticles in composite films: a single step route. Nanoscale Research Letters, 2 (3). pp. 175-183. ISSN 1931-7573 (Print) 1556-276X (Online)
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Official URL: http://www.springerlink.com/content/p1078253764134...
A simple method to embed noble metal (Ag, Au) nanoparticles in organic–inorganic nanocomposite films by single step method is described. This is accomplished by the assistance of Keggin ions present in the composite film. The photochemically reduced composite film has served both as a reducing agent and host for the metal nanoparticles in a single process. The embedded metal nanoparticles in composites film have been characterized by UV–Visible, TEM, EDAX, XPS techniques. Particles of less than 20 nm were readily embedded using the described approach, and monodisperse nanoparticles were obtained under optimized conditions. The fluorescence experiments showed that embedded Ag and Au nanoparticles are responsible for fluorescence emissions. The described method is facile and simple, and provides a simple potential route to fabricate self-standing noble metal embedded composite films.
|Subjects:||Physical Science > Nanophysics|
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
|Divisions:||Faculty of Engineering, Science and Mathematics > School of Physics|
Faculty of Engineering, Science and Mathematics > School of Chemistry
|Deposited On:||11 Aug 2009 07:20|
|Last Modified:||11 Aug 2009 07:20|
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