Eu3+ doped self-activated Ca8ZrMg(PO4)6(SiO4) phosphor with tunable luminescence properties
Source abstract
Abstract
Abstract: Single-host white-light emission phosphors stand a good chance to serve in the next-generation high-power white light emitting diodes. Eu3+-doped self-activated Ca8ZrMg(PO4)6(SiO4) phosphor was synthesized by a high temperature solid-state reaction which can realize white light emission by tuning spectrum. The analysis of XRD, SEM, UV–vis DRS, luminescent spectra, and emission dynamic curves were applied to investigate the obtained samples. Upon 295 nm excitation, the Ca8ZrMg(PO4)6(SiO4): Eu3+ phosphors contain two dominating bands peaked at 470 and 615 nm, which are attributed to the charge transfer (CT) transition from Zr4+ to O2− and the characteristic transition 5D0→7F2 of the Eu3+ ions, respectively. In view of the energy transfer between Zr-O CT and Eu3+ ions, the chromaticity coordinates of Ca8ZrMg(PO4)6(SiO4): Eu3+ phosphors can be tuned from (0.2186, 0.2858) to (0.5413, 0.3295). Present work indicates that the novel Ca8ZrMg(PO4)6(SiO4) is a promising candidate as a single-host white phosphor with an excellent thermal stability for optical display applications.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Perovskite Materials and Applications · Luminescence and Fluorescent Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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