Photostimulable fluorescent nanoparticles for biological imaging

Conference contribution
(Conference Contribution)

Publication Details

Author(s): Osvet A, Milde M, Dembski S, Rupp S, Gellermann C, Batentschuk M, Brabec C, Winnacker A
Publication year: 2012
Volume: 1342
Conference Proceedings Title: 2011 MRS Spring Meeting
Pages range: 73-78
ISBN: 9781605113197
ISSN: 02729172
Language: English


Spherical monodisperse core/shell-type nanoparticles, comprising an amorphous SiO core coated with a luminescent phosphor layer were synthesized by the modified Pechini processes. The sol-gel method allows covering the 50-500 nm core particles with different inorganic phosphor layers of about 10 nm thickness, doped with rare-earth or transition metal ions which determine the luminescent properties. Particles comprising a Zn SiO shell, doped with Mn ions, are not only fluorescent under UV irradiation (260 nm), but store the activation energy by trapping electrons/holes at lattice defects. This energy is released as phosphorescence in the time scale of seconds and minutes, or as photostimulated luminescence under the excitation of red light (650 nm). Traps related to these processes are different, and their concentration is affected by the preparation conditions of the particles. © 2011 Materials Research Society.

FAU Authors / FAU Editors

Batentschuk, Miroslaw PD Dr.-Ing.
Institute Materials for Electronics and Energy Technology (i-MEET)
Brabec, Christoph Prof. Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Osvet, Andres Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Winnacker, Albrecht Prof. Dr.
Technische Fakultät

External institutions with authors

Fraunhofer Institut für Silicatforschung (ISC)

How to cite

Osvet, A., Milde, M., Dembski, S., Rupp, S., Gellermann, C., Batentschuk, M.,... Winnacker, A. (2012). Photostimulable fluorescent nanoparticles for biological imaging. In 2011 MRS Spring Meeting (pp. 73-78). San Francisco, CA, US.

Osvet, Andres, et al. "Photostimulable fluorescent nanoparticles for biological imaging." Proceedings of the 2011 MRS Spring Meeting, San Francisco, CA 2012. 73-78.


Last updated on 2018-10-12 at 13:50