Photoluminescence studies in swift heavy ion bombarded mullite

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Nagabhushana, H. and Lakshminarasappa, B.N. and Singh, F. and Avasthi, D.K. (2003) Photoluminescence studies in swift heavy ion bombarded mullite. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 211 (4). pp. 545-548. ISSN 0168583X

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Official URL: https://doi.org/10.1016/S0168-583X(03)01709-9

Abstract

Photoluminescence (PL) of pelletized mullite samples irradiated with 100 MeV swift Ni8+ ions with fluences in the range 1 à 10 11-5 à 1013 ions/cm2 have been studied at RT. A broad and strong PL emission band with peak at â¼537 nm besides a sharp emission band with peak at â¼705 nm have been recorded in combustion synthesized mullite. However, a single broad emission with peak at â¼537 nm have been recorded in mullite synthesized by sol-gel technique at an excitation of 442 nm laser beam. It is found that PL intensity is decreases with increase of Ni8+ ion fluence. The decrease in PL intensity is attributed to destruction of Al-O and Si-O bonds in the samples. Infrared absorption (IR) studies of as it is and Ni8+ ion irradiated mullites have also been studied and results obtained are discussed. © 2003 Elsevier B.V. All rights reserved.

Item Type: Article
Additional Information: cited By 16
Uncontrolled Keywords: Infrared spectroscopy; Laser beams; Photoluminescence; Sol-gels, Infrared absorption, Heavy ions
Subjects: Faculty of Science > Pure Sciences > Physics
Divisions: Jnana Bharathi / Central College Campus > Department of Physics
Depositing User: Mr. Kirana Kumar D
Date Deposited: 11 Feb 2016 06:13
Last Modified: 11 Feb 2016 06:13
URI: http://eprints-bangaloreuniversity.in/id/eprint/1003

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