Growth and Spectroscopic Properties of Pr$^{3+}$ Doped Lu$_2$S$_3$ SingleCrystals
| Autor: | Vanecek, Vojtech, Jary, Vitezslav, Kral, Robert, Havlak, Lubomir, Vlk, Ales, Kucerkova, Romana, Prusa, Petr, Barta, Jan, Nikl, Martin |
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| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Crystal Growth and Design 24 (2024) 4736 4742 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1021/acs.cgd.4c00330 |
| Popis: | For the first time Lu$_2$S$_3$ (undoped and Pr-doped) single crystals were successfully grown from melt using micro-pulling-down (mPD) technique. Customization of halide mPD apparatus allowed us to grow rod-shaped (\O 2 mm and length around 20 mm) crystals of Lu$_2$S$_3$ with high melting temperature (~1750 $^\circ$C). X-ray powder diffraction revealed that the grown crystals exhibit the {\epsilon}-Lu$_2$S$_3$ crystal structure ($\alpha$-Al$_2$O$_3$ type, space group R-3c). Optical and scintillation properties of both the undoped and Pr$^{3+}$ doped Lu$_2$S$_3$ were investigated. Fast 5d-4f Pr$^{3+}$ luminescence was observed in both photoluminescence and radioluminescence spectra. The presented technology is an effective tool for the exploration of a large family of high-melting sulfides. Such materials show promise for application as scintillators, active laser media, and optoelectronic components. Comment: 7 pages, 9 figures, 34 references |
| Databáze: | arXiv |
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