Optical properties of bismuth granules in a glass matrix

Das, G. C. ; Das, R. ; Chakravorty, D. (1983) Optical properties of bismuth granules in a glass matrix Bulletin of Materials Science, 5 (3-4). pp. 277-286. ISSN 0250-4707

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Official URL: http://www.ias.ac.in/j_archive/bms/5/1/277-286/vie...

Related URL: http://dx.doi.org/10.1007/BF02744042


Optical absorption characteristics for ultra-fine bismuth particles having dimensions around 10 nm and dispersed in both silicate and vanadium phosphate glass matrices have been investigated in the wavelength range 300 to 700 nm. Bismuth particles in vanadium phosphate matrix show an absorption peak around 440 nm whereas in silicate glass matrix they give two peaks in the ranges 500 to 530 nm and 420 to 430 nm respectively. The peak positions in all the glass-bismuth metal systems are predicted in fair agreement with experiment by Maxwell-Garnett (MG), as extended by Polder and van Santen (MG-PvS) and Bruggeman (BR) effective medium theories. It is observed, however, that mg-pvs and br models give the best fit to experimental data over the entire wavelength range studied.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Optical Absorption; Ultra-fine Bismuth Particles; Silicate Glass Matrix; Vanadium Phosphate Glass Matrix; Effective Medium Theories
ID Code:64898
Deposited On:14 Oct 2011 12:17
Last Modified:18 May 2016 13:09

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