Luminescence of 5d–4f transitions of Pr3+ in natural fluorite CaF2, anhydrite CaSO4 and apatite Ca5(PO4)3F

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Natural fluorite, anhydrite and apatite under deep UV excitation exhibits several narrow emission bands in the spectral range of 225–300 nm with the strongest peaks at 230–240 nm and 260–290 nm and with half-widths of 20–30 nm. They are characterized by narrow excitation band peaking at 220 nm and very short decay times of 20–50 ns. Those spectral-kinetic parameters enable their interpretation as 4f5d–4f transitions in Pr3+ luminescence center. Such kind of luminescence has been studied extensively over the past several decades in synthetic phosphors, including those which are analogous to natural compounds, but it is the first time 5d–4f luminescence transitions of Pr3+ is being proved in minerals.

Original languageEnglish
Article number5
JournalPhysics and Chemistry of Minerals
Volume47
Issue number1
DOIs
StatePublished - 1 Jan 2020

Keywords

  • 5d–4f transitions
  • Anhydrite
  • Apatite
  • Fluorite
  • Luminescence
  • Pr

Fingerprint

Dive into the research topics of 'Luminescence of 5d–4f transitions of Pr3+ in natural fluorite CaF2, anhydrite CaSO4 and apatite Ca5(PO4)3F'. Together they form a unique fingerprint.

Cite this