Abstract The luminescence processes across zircon-to-scheelite phase transition in undoped YVO<inf>4</inf> and Eu<sup>3+</sup>-doped YVO<inf>4</inf> are investigated by measuring the Raman, excitation and emission spectra and decay characteristics of the compounds with respect to high hydrostatic pressure up to 200 kbar. The scheelite polymorphs obtained after releasing the high pressure show no luminescence when undoped, even down to 10 K, but when activated with Eu<sup>3+</sup> exhibit the characteristic scheelite-related Eu<sup>3+</sup> emission but with low intensity. This emission is produced upon UV excitation in zircon inclusions that remain after the pressure treatment.

Optical processes in YVO<inf>4</inf>:Eu<sup>3+</sup>across zircon-to-scheelite phase transition / Mahlik, Sebastian; Lazarowska, Agata; Szczodrowski, Karol; Grinberg, Marek; Cavalli, Enrico; Boutinaud, Philippe. - In: JOURNAL OF LUMINESCENCE. - ISSN 0022-2313. - 165(2015), pp. 19-22. [10.1016/j.jlumin.2015.04.014]

Optical processes in YVO4:Eu3+across zircon-to-scheelite phase transition

CAVALLI, Enrico;
2015

Abstract

Abstract The luminescence processes across zircon-to-scheelite phase transition in undoped YVO4 and Eu3+-doped YVO4 are investigated by measuring the Raman, excitation and emission spectra and decay characteristics of the compounds with respect to high hydrostatic pressure up to 200 kbar. The scheelite polymorphs obtained after releasing the high pressure show no luminescence when undoped, even down to 10 K, but when activated with Eu3+ exhibit the characteristic scheelite-related Eu3+ emission but with low intensity. This emission is produced upon UV excitation in zircon inclusions that remain after the pressure treatment.
Optical processes in YVO<inf>4</inf>:Eu<sup>3+</sup>across zircon-to-scheelite phase transition / Mahlik, Sebastian; Lazarowska, Agata; Szczodrowski, Karol; Grinberg, Marek; Cavalli, Enrico; Boutinaud, Philippe. - In: JOURNAL OF LUMINESCENCE. - ISSN 0022-2313. - 165(2015), pp. 19-22. [10.1016/j.jlumin.2015.04.014]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11381/2807941
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 8
  • ???jsp.display-item.citation.isi??? 7
social impact