In:
Journal of Applied Physics, AIP Publishing, Vol. 93, No. 12 ( 2003-06-15), p. 9783-9788
Abstract:
The vacuum ultraviolet (VUV) spectra of the nanosized YBO3:Eu crystals, which have already been prepared by a more facile sol–gel pyrolysis process at a relatively low annealing temperature in our previous work, were investigated and compared to the bulk synthesized by conventional solid-state reactions. In the emission spectra, the size dependence of color purity in YBO3:Eu under VUV irradiation is in good agreement with our previous results obtained under ultraviolet excitation, and a relatively better color purity could be obtained in the YBO3:Eu phosphors with a smaller particle size. Moreover, the VUV excitation spectra of nanocrystals are also distinctly different from those of the bulk and submicrosized samples. The size dependence of the Eu–O charge transfer process, the B3O99− ion absorption, and the Y–O excitonic transition, as well as the quenching concentration, were reported and discussed.
Type of Medium:
Online Resource
ISSN:
0021-8979
,
1089-7550
Language:
English
Publisher:
AIP Publishing
Publication Date:
2003
detail.hit.zdb_id:
220641-9
detail.hit.zdb_id:
3112-4
detail.hit.zdb_id:
1476463-5
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