| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5403502 | Journal of Luminescence | 2008 | 4 Pages |
Abstract
This work investigates phase transition (PT) and excited-state-crossover (ESCO) effects on the photoluminescence (PL) properties of LiCaAlF6: Cr3+. The structural requirements for changing the Cr3+ PL behavior from a broad-band emission at 1.59Â eV (781Â nm) at ambient conditions, to ruby-like narrow-line emission at 1.87Â eV (663Â nm) are analyzed in the 0-35Â GPa range. We report a PL study on LiCaAlF6: Cr3+ by means of time-resolved emission as a function of pressure and temperature. In particular we focus on the PL variations occurring around the pressure-induced trigonal-to-monoclinic first-order PT in LiCaAlF6 at 7Â GPa.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
M.N. Sanz-Ortiz, F. RodrÃguez, I. Hernández, R. Valiente, S. Kück,