Please use this identifier to cite or link to this item: http://localhost:8080/xmlui/handle/123456789/1652
Title: Interfacial properties of hybrid nanomaterials
Authors: Binil Itty Ipe
Yoosaf, K
George Thomas, K
Keywords: Gold nanoparticle
Pyrene
Surface polarity
Excited state
Issue Date: 2005
Publisher: Indian Academy of Sciences
Citation: Pramana-Journal of Physics 65(5):909-915; Nov 2005
Abstract: A brief summary of our ongoing efforts to understand the surface properties of nanoparticles using fluorophores, namely pyrene alkanethiols, is presented. Excited state interactions were investigated by varying the length of the spacer group and the concentration of fluorophore. The flexible long alkyl chain tethering pyrene in Au-P2/Au-P3 allows free interaction between fluorophores resulting in excimer formation whereas the intermolecular interactions axe limited in the Au-P1 system due to the restriction imposed by the curvature of spherical gold nanoparticle. A gradual increase in the peak intensity ratio of III/I band of the normal fluorescence of pyrene was observed indicating that the surface of nanoparticle is more polar than the bulk solvent (toluene).
URI: http://ir.niist.res.in:8080/jspui/handle/123456789/1652
ISSN: 0304-4289
Appears in Collections:2005

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