Cognitions on the effects of swift heavy ion irradiation on the dielectric and optical behaviour in l-asparaginium picrate

P. Srinivasan; T. Kanagasekaran; Pawan Kumar Kulriya; D. Kanji Lal; R. Gopalakrishnan; P. Ramasamy

doi:10.1016/j.nimb.2007.01.166

Cognitions on the effects of swift heavy ion irradiation on the dielectric and optical behaviour in l-asparaginium picrate

P. Srinivasan, T. Kanagasekaran, Pawan Kumar Kulriya, D. Kanji Lal, R. Gopalakrishnan, P. Ramasamy

Advanced Institute for Materials Research (AIMR)

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

Organic nonlinear optical crystal l-asparaginium picrate was subjected to 100 MeV Ag⁸⁺ ions and 100 MeV Si⁸⁺ ions. The dielectric properties of the crystals were studied before and after irradiation from 100 Hz to 5 MHz at various temperatures (308 K to 358 K). A drastic increase in the dielectric constant is seen due to irradiation. The dielectric constant and dielectric loss increase with increasing irradiation fluence. The UV-vis spectra of the pristine and irradiated samples were recorded and quantified. There is a small shift in absorption edge towards lower wavelength for the irradiated crystals due to the decrease in bandgap of the material. The observed results are discussed in detail.

Original language	English
Pages (from-to)	698-704
Number of pages	7
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	256
Issue number	2
DOIs	https://doi.org/10.1016/j.nimb.2007.01.166
Publication status	Published - 2007 Mar 1

Keywords

Dielectric constant
Dielectric loss
Ion irradiation

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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10.1016/j.nimb.2007.01.166

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Srinivasan, P., Kanagasekaran, T., Kulriya, P. K., Kanji Lal, D., Gopalakrishnan, R., & Ramasamy, P. (2007). Cognitions on the effects of swift heavy ion irradiation on the dielectric and optical behaviour in l-asparaginium picrate. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 256(2), 698-704. https://doi.org/10.1016/j.nimb.2007.01.166

Cognitions on the effects of swift heavy ion irradiation on the dielectric and optical behaviour in l-asparaginium picrate. / Srinivasan, P.; Kanagasekaran, T.; Kulriya, Pawan Kumar et al.

In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 256, No. 2, 01.03.2007, p. 698-704.

Research output: Contribution to journal › Article › peer-review

Srinivasan, P, Kanagasekaran, T, Kulriya, PK, Kanji Lal, D, Gopalakrishnan, R & Ramasamy, P 2007, 'Cognitions on the effects of swift heavy ion irradiation on the dielectric and optical behaviour in l-asparaginium picrate', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, vol. 256, no. 2, pp. 698-704. https://doi.org/10.1016/j.nimb.2007.01.166

Srinivasan P, Kanagasekaran T, Kulriya PK, Kanji Lal D, Gopalakrishnan R, Ramasamy P. Cognitions on the effects of swift heavy ion irradiation on the dielectric and optical behaviour in l-asparaginium picrate. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. 2007 Mar 1;256(2):698-704. doi: 10.1016/j.nimb.2007.01.166

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Cognitions on the effects of swift heavy ion irradiation on the dielectric and optical behaviour in l-asparaginium picrate

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