Title :
Crossluminescence of Nanosized KYF
Author :
Makhov, Vladimir N. ; Vanetsev, Alexander S. ; Khaidukov, Nikolai M. ; Belsky, Andrei N. ; Yin, Min ; Wei, XianTao ; Kotlov, Aleksei
Author_Institution :
P.N. Lebedev Phys. Inst., Moscow, Russia
Abstract :
A series of KYF4 nano-powders, undoped and doped with Tb3+, with well-crystallized, unaggregated, monodisperse (± 15%) nanoparticles of cubic or hexagonal crystal structure and the size in the range from ~ 10 to ~ 40 nm has been synthesized by microwave-hydrothermal method. It was found that crossluminescence in KYF4 nanopowders is strongly quenched whereas the slow near-defect excitonic emission as well as the Tb3+ 4f-4f luminescence in Tb3+ doped KYF4 nanopowders is excited rather efficiently even for small sizes of particles.
Keywords :
nanofabrication; nanoparticles; potassium compounds; radiation quenching; terbium; yttrium compounds; KYF4:Tb; crossluminescence; microwave-hydrothermal method; monodisperse nanoparticles; nanopowders; nanosized materials; near-defect excitonic emission; quenching; size -10 nm to -40 nm; unaggregated nanoparticles; well-crystallized nanoparticles; Crystals; Excitons; Ions; Luminescence; Nanoparticles; Photonics; Synchrotron radiation; Crossluminescence; excitons; fast VUV luminescence; inorganic scintillators; nanophosphors; synchrotron radiation;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2012.2185064