Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

Photoluminescent and storage properties of photostimulable core/shell type silicate nanoparticles

: Osvet, Andres; Batentschuk, Miroslaw; Milde, Moritz; Lundt, Nils; Gellermann, Carsten; Dembski, Sofia; Winnacker, Albrecht; Brabec, Christoph J.


Physica status solidi. C 10 (2013), Nr.2, S.180-184
ISSN: 1610-1634
ISSN: 1610-1642
ISSN: 1862-6351
International Conference on Defects in Insulating Materials (ICDIM) <2012, Santa Fe/NM>
Zeitschriftenaufsatz, Konferenzbeitrag
Fraunhofer ISC ()

We have prepared hybrid luminescent nanoparticles with amorphous SiO2 cores and crystalline Zn2SiO4:Mn2+shells by sol-gel technology. Under UV excitation the shells of the particles emit green Mn2+-related luminescence at 525 nm. In addition, under the UV excitation at least two kinds of traps are filled with electrons, contributing to a long afterglow and photostimulated luminescence. The paper presents the details of the charging and stimulation characteristics of the photostimulated luminescence.