Photo from archive.org
Abstract In this contribution, the spectroscopic and magnetic properties of manganese ions in a rhombohedral LaAlO3 perovskite are reported. Micro powders were prepared by the Pechini method. We present absorption,… Click to show full abstract
Abstract In this contribution, the spectroscopic and magnetic properties of manganese ions in a rhombohedral LaAlO3 perovskite are reported. Micro powders were prepared by the Pechini method. We present absorption, excitation and emission spectra of LaAlO3 polycrystals doped with Mn4+ (3 d3) ions, as well as the luminescent decay time and temperature-dependent emission intensity measurements. The quantum yield of the LaAlO3:0.1% Mn4+ sample reaches 47%. We also show the electron paramagnetic resonance spectrum, which reveals the presence of Mn2+ ions.
Journal Title: Materials Chemistry and Physics
Year Published: 2020
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!