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Properties of the Energy Bands, Judd-Ofelt Parameters and the Fluorescence of Neodymium Chloride (NdCl3) in Methanol, Iso-propanol and Butanol Solvents

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Abstract

Absorption bands of neodymium chloride (NdCl3) dissolved in methanol, iso-propanol and butanol organic solvents at room temperature have been recorded in the ultraviolet–visible and near infrared regions between 190 and 1100 nm. Adopting a free-ion Hamiltonian we have calculated and assigned the energy multiplets of the 4f 3 electronic configuration of the Nd3+ ion, and thereby the best-fit parameters are estimated. We have measured the oscillator strengths of the observed absorptions and using the experimentally measured oscillator strengths the three Judd-Ofelt intensity parameters Ω2, Ω4 and Ω6 have been derived. Hence we have calculated the line strengths and the oscillator strengths for electric-dipole transitions. An intense fluorescence emission is found for 4F3/2 → 4I9/2 transition at 873 nm, upon excitation with 581 nm. The fluorescence characteristics are also investigated by evaluating the spontaneous transition probability (A), luminescence branching ratio (β), radiative lifetime (τ) and the stimulated emission cross section (σ).

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Acknowledgments

The authors express thanks to the University Grants Commission (UGC), New Delhi, India, for providing the required financial support to procure the equipments in the laboratory.

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  1. Department of Physics, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, 711103, West Bengal, India

    Subrata Mitra & Samar Jana

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  1. Subrata Mitra
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  2. Samar Jana
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Correspondence to Samar Jana.

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Mitra, S., Jana, S. Properties of the Energy Bands, Judd-Ofelt Parameters and the Fluorescence of Neodymium Chloride (NdCl3) in Methanol, Iso-propanol and Butanol Solvents. J Fluoresc 25, 541–549 (2015). https://doi.org/10.1007/s10895-015-1526-0

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  • DOI: https://doi.org/10.1007/s10895-015-1526-0

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