Singh, Shiv Prakash and Nath, Mithun and Karmaka, Basudeb (2014) Quantum and dielectric confinements of sub-10 nm gold in dichroic phosphate glass nanocomposites. Materials Chemistry and Physics, 146 (3). pp. 198-203. ISSN 0254-0584

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Abstract

Blue shifts of the surface plasmon resonance band of sub-10 nm gold in dichroic phosphate glass nanocomposites are observed with increase in both size of gold nanoparticles and refractive index of the medium, which are contrary to the common trends. These phenomena have been enlightened with the electrodynamics theories (Mie and Drude models) and happened due to quantum and dielectric confinements. Nanocomposites have been synthesized by in-situ thermochemical reduction technique in reducing phosphate glass matrices. The plasmon bands are characterized by the UV-vis spectrophotometer, and shape and size of the nanogold by the transmission electron microscopy. All the nanocomposites are dichroic in nature. (C) 2014 Elsevier B.V. All rights reserved.

Item Type:	Article
Subjects:	Glass
Divisions:	Glass
Depositing User:	Bidhan Chaudhuri
Date Deposited:	24 Nov 2014 11:01
Last Modified:	19 Dec 2014 07:21
URI:	http://cgcri.csircentral.net/id/eprint/2571

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