Luminescence properties of red-emitting Mn2+-Activated Na2Mg5Si12O30 phosphors
Source abstract
Abstract
Abstract Na2Mg5(1-x)Si12O30:5xMn2+(x = 0.005, 0.01, 0.03,0.05,0.07 and 0.09) red phosphors were synthesized by solid state reactions. The formation of a single phase compound is verified through the X-ray diffraction (XRD) studies. The excitation and emission spectra, and decay curves of Na2Mg5Si12O30:Mn2+ are investigated by optical and laser excitation spectroscopy in the temperature range 7–520 K. The strong red emission peaking at 600 nm is observed due to the spin forbidden transition 4T1 → 6A1 of Mn2+ ions. At high Mn2+ concentration, new side bands appear at lower energy side at around 670 nm which can be ascribed to the appearance of the formation of new Mn2+ centers. In addition, the thermal quenching behavior is investigated to evaluate the commercial value of Na2Mg5Si12O30:Mn2+ as red-emitting materials.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Microwave Dielectric Ceramics Synthesis · Inorganic Fluorides and Related Compounds
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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