Název:
Highly luminescent nanophosphors - new physics, technologies and applications
Autoři:
Nikl, Martin ; Čuba, V. ; Bárta, J. ; Jarý, Vítězslav Typ dokumentu: Příspěvky z konference Konference/Akce: International Conference NANOCON 2013 /5./, Brno (CZ), 2013-10-16 / 2013-10-18
Rok:
2014
Jazyk:
eng
Abstrakt: The application of radiation synthesis in the manufacturing nanopowders of binary and ternary oxide nanophosphors is reviewed. Technological routes are described: irradiation of specific solutions containing soluble metal salts and OH radical scavenger by UV or ionizing radiation results in the formation of finely dispersed solid phase which is separated from the solution and subsequently converted by further thermal treatment into crystalline nanopowders with typical dimension of grains of several tens of nanometers. Doped ZnO, Y2O3, Y3Al5O12, Lu3Al5O12 and Gd3(Ga,Al)5O12 nanophosphors were prepared and their luminescence and scintillation characteristics were measured. In the photoluminescence decay of doped garnets the distinct effect of nanosized grains was found consisting in the slowing-down of the decay due to the change of effective refractive index.
Klíčová slova:
garnet; nanocrystals; phosphor; radiation method; rare earth dopants; scintillator; Y.sub.2./sub.O.sub.3./sub.; ZnO Číslo projektu: GA13-09876S (CEP) Poskytovatel projektu: GA ČR Zdrojový dokument: NANOCON 2013 - Conference Proceedings, ISBN 978-80-87294-47-5
Instituce: Fyzikální ústav AV ČR
(web)
Informace o dostupnosti dokumentu:
Dokument je dostupný v příslušném ústavu Akademie věd ČR. Původní záznam: http://hdl.handle.net/11104/0231055