Photostimulable fluorescent nanoparticles for biological imaging

Beitrag bei einer Tagung
(Konferenzbeitrag)


Details zur Publikation

Autor(en): Osvet A, Milde M, Dembski S, Rupp S, Gellermann C, Batentschuk M, Brabec C, Winnacker A
Jahr der Veröffentlichung: 2012
Band: 1342
Tagungsband: 2011 MRS Spring Meeting
Seitenbereich: 73-78
ISBN: 9781605113197
ISSN: 02729172
Sprache: Englisch


Abstract


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-Autoren / FAU-Herausgeber

Batentschuk, Miroslaw PD Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Brabec, Christoph Prof. Dr.
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Osvet, Andres Dr.
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Winnacker, Albrecht Prof. Dr.
Technische Fakultät


Autor(en) der externen Einrichtung(en)
Fraunhofer Institut für Silicatforschung (ISC)


Zitierweisen

APA:
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.

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

BibTeX: 

Zuletzt aktualisiert 2018-10-12 um 13:50