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Opto-Electronic and Crystallographic Analysis of Orangish-Red Radiating Ba2YAlO5:Sm3+ Nanomaterials for Potential wLED Applications

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Abstract

Orangish-red radiating Ba2YAlO5:Sm3+ nanomaterials were fabricated by an ideal, ecologically benign, and less energy-consuming propellant-combustion route. Crystal structure investigations revealed monoclinic symmetry with a P21/(11) phase group. The morphological analysis showed roughly spherical topography of agglomerated nanostructured particles (38–65 nm). The fabricated materials showed a fine orangish-red peak at 599 nm. Optical investigations revealed a wide indirect-bandgap value (= 3.6647 eV ± 0.0058 eV) for the Ba2Y0.98Sm0.02AlO5 sample. The dependence of the luminescence intensity of the prepared nanocrystals on activator (Sm3+) amount showed that the Ba2Y0.98Sm0.02AlO5 sample, as the most desirable, demonstrated color coordinates (0.5955, 0.4192) with 1729 K correlated color temperature (CCT) and 70.78% color purity (CP), which approached red-commercial coordinates (0.570, 0.420) of the Nichia Corporation-fabricated amber light-emitting diode (LED) NSPAR 70BS. These magnificent results confirmed the relevancy of the targeted nanocrystals as an excellent material for potential applicability in solid-state down-converted white light-emitting diodes (WLEDs).

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Acknowledgments

URS award (No. R&S/R-15/19/2004) as an economical assistance from M.D. University is greatly appreciated by P. Sehrawat.

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Authors and Affiliations

  1. Department of Chemistry, Maharshi Dayanand University, Rohtak, 124001, India

    Priyanka Sehrawat, R. K. Malik, Monika Sheoran & Hina Dalal

  2. Department of Physics, Maharshi Dayanand University, Rohtak, 124001, India

    R. Punia

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  1. Priyanka Sehrawat
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  2. R. K. Malik
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Correspondence to R. K. Malik.

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Sehrawat, P., Malik, R.K., Punia, R. et al. Opto-Electronic and Crystallographic Analysis of Orangish-Red Radiating Ba2YAlO5:Sm3+ Nanomaterials for Potential wLED Applications. J. Electron. Mater. 50, 6964–6973 (2021). https://doi.org/10.1007/s11664-021-09273-0

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