UV Photoluminescence of Eu3+doped Na3SO4F Red Halosulphate Phosphor for White Light Emitting Diodes

S. T. Taide

International Journal of Scientific Research in Science and Technology, 2024, vol. 11, issue 2, 401-404

Abstract: The high luminescent Na3SO4F: Eu3+ halosulphate phosphor with improved the color purity and high intensity of red phosphor for solid state lighting devices was reported. The halosulphate phosphor was developed by re-crystallization technique. Crystal structure and phase formation of the product was identified by powder XRD technique and particle morphology was studied by FE-SEM. The photoluminescence (PL) spectra were investigated under 393nm (UV) excitation. The prepared halosulphate Na3SO4F: Eu3+ phosphor showed a strong red emission around 617 nm. This is due to Eu3+ substituted for Na3+ occupied the non centro-symmetric position. The Eu3+ doped ion will increase the electric dipole 5F0®7D2 transition of Eu3+ in the crystal structure of Na3SO4F: Eu3+. It can be concluded that re-crystallization technique can successfully employed to promising red phosphor for solid state lighting devices.

Keywords: Photoluminescence; Halosulphate Phosphors; Re-Crystallization (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:etm:ijsrst:v11:y2024:i2:id:57

DOI: 10.32628/IJSRST2412346

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