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Exploration of efficient photoluminescence properties of intense green emitting Er3+ activated NaBi(MoO4)2 phosphor for white LED applications

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Abstract

Microcrystalline NaBi(MoO4)2 (NBM) phosphors doped with rare-earth ions (Er3+) have been successfully synthesized via conventional solid-state reaction route. The crystal structure, morphology, photoluminescence (PL), and colorimetric properties of NBM: xEr3+ samples were explored using various characterization techniques. X-ray diffraction patterns of the as-synthesized phosphors were well-matched with the standard JCPDS (card no. 79–2240) patterns. The peaks centered at 530 (2H11/2 → 4I15/2) and 552 nm (4S3/2 → 4I15/2) in photoluminescence (PL) spectra were observed for NBM: Er3+ phosphor under 488 nm excitation. The concentration quenching phenomenon in the NBM phosphor was attained at 2.0 mol% of Er3+ ion concentration, beyond which it declines the emission intensity. Colorimetric properties of the Er3+ activated NBM samples were explored through CIE coordinates, which fall in the green region and indicate high color purity. The aforementioned characteristics demonstrate promising behavior of NaBi(MoO4)2: xEr3+ phosphor to use in the field of solid-state lighting applications.

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The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.

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Authors and Affiliations

  1. Luminescent Materials Research Lab, Department of Applied Physics, Delhi Technological University, Bawana Road, Delhi, 110042, India

    Muskan, Pranjali Sharma,  Deepali & M. Jayasimhadri

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  1. Muskan
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  2. Pranjali Sharma
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  3. Deepali
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Muskan, Sharma, P., Deepali et al. Exploration of efficient photoluminescence properties of intense green emitting Er3+ activated NaBi(MoO4)2 phosphor for white LED applications. Journal of Materials Research 38, 4655–4664 (2023). https://doi.org/10.1557/s43578-023-01186-4

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