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Diverse crystallographic and luminescence aspects of Eu3+ activated new BaSrLa4O8 nanophosphor for progressive optoelectronic applications

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Abstract

Eu3+-activated orthorhombic BaSrLa4O8 nanocrystal system with strong red luminescence was prepared using the energy-saving solution combustion method. Its crystal structure is orthorhombic, it belongs to the Pnma (162) space group, and its particle shape and diameter range from 44 to 68 nm. Morphological aspects were examined by scanning and transmission electron microscopy techniques. When exposed to UV radiation, the nanocrystal emits vibrant red light with a wavenumber of 18,281 cm−1 due to the change of electronic state 5D0 → 7F5. The effect of energy transfer is also demonstrated. The maximum emission intensity was observed at 10.0 mol% Eu3+ ion concentration when excited at 394 nm. This phenomenon can be attributed to the interaction-quenched d–d interaction leading to decreased luminescence intensity. According to the chromaticity diagram, the composite color falls in the red region and the relative color coordinate temperature of the optimized sample BaSrLa3.60Eu0.40O8 is measured at 2234 K. These nanocrystals are especially best for producing white light emitting diodes for advanced optoelectronic applications.

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Authors and Affiliations

  1. Department of Chemistry, Baba Mastnath University, Rohtak, 124001, India

    Manav Kaushik, Ritu Kataria & Pallavi Bhardwaj

  2. Department of Chemistry, Vaish College, Rohtak, 124001, India

    Mukesh Kumar

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  1. Manav Kaushik
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Kaushik, M., Kataria, R., Bhardwaj, P. et al. Diverse crystallographic and luminescence aspects of Eu3+ activated new BaSrLa4O8 nanophosphor for progressive optoelectronic applications. J Opt (2024). https://doi.org/10.1007/s12596-024-01796-z

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