article Open Access

Luminescence in Eu 2+ -doped Ba 2 Si 5 N 8 : fluorescence, thermoluminescence, and upconversion

Journal of Physics and Chemistry of Solids · 2000 · Vol. 61(12) · pp. 2001–2006

Henning A. Höppe(Ludwig-Maximilians-Universität München)H. Lutz(University of Bayreuth)Peter Morys(University of Bayreuth)Wolfgang Schnick✉(Ludwig-Maximilians-Universität München)A. Seilmeier(University of Bayreuth)

View via DOI Publisher page

Abstract

Fluorescence emission was investigated in a series of Ba2−xEuxSi5N8 compounds. Two maxima corresponding to the two crystallographic Eu2+ sites are observed. Excitation with intense laser light at 1.047 μm reveals strong fluorescence emission at ∼600 nm due to two-photon-excitation. In Ba1.89Eu0.11Si5N8 the long lasting luminescence was studied. The emission peaking at about 590 nm has been observed in the dark with the naked eye even 15 min after removal of the activating lamp. This effect is due to the recombination of holes and traps consisting of nitrogen vacancies formed by reducing synthesis conditions. The maximum emission was observed at −7°C.

Luminescence Properties of Advanced Materials Perovskite Materials and Applications Electronic and Structural Properties of OxidesThermoluminescenceLuminescenceFluorescencePhoton upconversionExcitationDopingAnalytical Chemistry (journal)Materials sciencePhotochemistryPhosphor

Citations

511

FWCI

2.28

field-weighted impact

References

Percentile

88%

vs. same field & year

Citations per year

Cited by