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Abstract
A series of Er3+-doped CaLa4Si3O13 phosphors with varying doping concentration (x = 0.005 ≤ x ≤ 0.09) was synthesized via sol-gel technique. The formation of CaLa4Si3O13 was confirmed by XRD analysis. The prepared phosphor was further characterized by FT-IR spectroscopy, UV–visible diffuse reflectance, and photoluminescence (PL) investigations. The PL study revealed that the prepared phosphors exhibit efficient green emission at 549 nm, when excited at 379 nm excitation wavelength. The CIE chromaticity study demonstrated the capability for fine color tuning in the green region by varying the Er3+ doping concentration. The PL study indicated that the prepared phosphors are suitable for use in near UV excited LEDs, display appliances and correlated applications.
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