期刊
JOURNAL OF NANOPARTICLE RESEARCH
卷 14, 期 4, 页码 -出版社
SPRINGER
DOI: 10.1007/s11051-012-0792-x
关键词
Nanoparticle; Terbium; Yttria; Luminescence; Pechini; Lifetime; Sol-gel synthesis process
资金
- Veneto Region Government
We report an optical study of Tb3+-doped Y2O3 nanocrystals synthesized by Pechini-type sol-gel method. The particles are investigated in terms of size and morphology by means of X-ray diffraction and transmission electron microscopy analysis. It is shown how the simple Pechini method allows for the growth of monocrystalline nanoparticles with a volume-weighted average size of about 30 nm. The optical properties of Tb3+ in the host lattice are studied in terms of PL, PLE, and lifetimes. Moreover, a correlation between the type of decay curves, the emission and excitation bands' shapes, and the site location of the emitting Tb3+ in the host material Y2O3 is proposed.
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