Kushwaha, S. K. and Maurya, K. K. and Vijayan, N. and Gupta, A. K. and Haranath, D. and Kumar, B. and Kanjilal, D. and Bhagavannarayana, G. (2014) Au9+ swift heavy ion irradiation of Zn[CS(NH2)(2)](3)SO4 crystal: Crystalline perfection and optical properties. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms , 338. pp. 1-7. ISSN 0168-583X

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Abstract

The single crystal of tris(thiourea)zinc sulphate (Zn[CS(NH2)(2)](3)SO4) was irradiated by 150 MeV Au9+ swift heavy ions and analyzed in comparison with pure crystal for crystalline perfection and optical properties. The Fourier transform infrared and X-ray powder diffraction inferred that swift ions lead the disordering and breaking of molecular bonds in lattice without formation of new structural phases. High resolution X-ray diffraction (HRXRD) revealed the abundance of point defects, and formation of mosaics and low angle grain boundaries in the irradiated region of crystal. The swift ion irradiation found to affect the lattice vibrational modes and functional groups significantly. The defects induced by heavy ions act as the color centers and resulted in enhance of photoluminescence emission intensity. The optical transparency and band gap found to be decreased.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/S Elsevier.
Uncontrolled Keywords:	Swift heavy ion irradiation Single crystal Nonlinear optical material High resolution X-ray diffraction Optical properties
Subjects:	Instruments/ Instrumentation Nuclear Science Technology Physics
Divisions:	UNSPECIFIED
Depositing User:	Dr. Rajpal Walke
Date Deposited:	11 Sep 2015 11:02
Last Modified:	11 Sep 2015 11:02
URI:	http://npl.csircentral.net/id/eprint/1180

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