Synthesis and luminescence properties of Sr3GdNa(PO4)3F: Sm3+ phosphor
Source abstract
Abstract
A series of Sr3Gd(1−x)Sm x Na(PO4)3F (x = 0.01, 0.03, 0.05, 0.07, 0.09) phosphors were synthesized through a conventional high-temperature solid-state reaction. The excitation and emission spectra indicate that these phosphors can be efficiently excited in the range from 350 to 430 nm which matches perfectly with the near-UV light, and emit orange–red light with CIE coordinates (0.5811, 0.4181). The concentration quenching mechanism of Sm3+ ions was ascribed to the dipole–dipole interaction. The activation energy E for thermal quenching is calculated to be 0.242 eV. And the lifetime of the Sr3Gd(1−x)Sm x Na(PO4)3F (x = 0.03, 0.05, 0.07, 0.09) phosphor was determined to be 0.8669, 0.8643, 0.8525, 0.8232 ms, respectively. These orange–red-emitting phosphors might be promising for use in n-UV white LEDs.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Glass properties and applications · Solid-state spectroscopy and crystallography
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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