Ultraviolet Upconversion Emission of CaAl 2 SiO 6 Polycrystals Doped with Pr 3+ Ions
Karol Lemański, Nadiia Rebrova, Patrycja Zdeb-Stańczykowska and 1 more
Molecules · 2025
doi:10.3390/molecules30142944 (opens in a new tab)
We email you when a new notice or a question about this paper appears.
Abstract
The spectroscopic properties of Pr<sup>3+</sup> ions in the aluminosilicate matrix were investigated for the first time. Synthesis of CaAl<sub>2</sub>SiO<sub>6</sub> (CASO) polycrystals doped with Pr<sup>3+</sup> ions was carried out using the sol–gel method. The crystalline structures have been confirmed with XRD measurement. The absorption, excitation, emission spectra, and time decay profiles of the praseodymium (III) ions were measured and analyzed. It was found that upon excitation with visible light, this material exhibits emission mainly in the UVC region, via an upconversion emission process. The Stokes emission in the visible range is observed mainly from the <sup>3</sup>P<sub>0</sub> and <sup>1</sup>D<sub>2</sub> energy levels. The <sup>1</sup>D<sub>2</sub>→<sup>3</sup>H<sub>4</sub> emission is very stable even at very high temperatures. The studied aluminosilicate phosphors possess characteristics that confirm their potential in upconversion emission applications.
Abstract licence: CC BY
Reads
Read by people on this page
None yet.
Checked or read by AI through naulon
None yet.
A person counts once a day per paper. We keep no cookie and no address: a reader is a hash that changes every day. Any month under five reads shows no number.
Are you an author?
Is this your paper?
Claim it to add your note and be paid when agents cite it. Free.