DocumentCode :
758389
Title :
Radiative Decay of Electronic Excitations in ZrO 
Nanocrystals and Macroscopic Single Crystals
Author :
Smits, Krisjanis ; Grigorjeva, Larisa ; Millers, Donats ; Fidelus, Janusz D. ; Lojkowski, Witold
Author_Institution :
Inst. of Solid State Phys., Riga
Volume :
55
Issue :
3
fYear :
2008
fDate :
6/1/2008 12:00:00 AM
Firstpage :
1523
Lastpage :
1526
Abstract :
The time-resolved luminescence was studied for ZrO2:Y single crystal and nanocrystals. The similar recombination centres were found in both single crystal and nanocrystals. Luminescence decay is within 200 ns in nanocrystals, whereas it extends to the microseconds in single crystal. It was shown that the defects responsible for transient absorption were not involved directly in radiative recombination process.
Keywords :
electrical conductivity; nanostructured materials; photoluminescence; time resolved spectra; yttrium; zirconium compounds; ZrO2:Y; charge carriers; electronic excitations; nanocrystals; photoluminescence; radiative decay; radiative recombination process; scintillators; spectroscopy; time-resolved luminescence; Absorption; Additives; Crystals; Excitons; Luminescence; Nanocrystals; Nanoparticles; Physics; Radiative recombination; Temperature; Photoluminescence; scintillators; spectroscopy; ultrafast;
fLanguage :
English
Journal_Title :
Nuclear Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9499
Type :
jour
DOI :
10.1109/TNS.2008.924077
Filename :
4545213
Link To Document :
