Facile route to produce spherical and highly luminescent Tb3+doped Y2O3 nanophosphors
Date
2017Source Title
Journal of Alloys and Compounds
Print ISSN
0925-8388
Publisher
Elsevier
Volume
695
Pages
726 - 736
Language
English
Type
ArticleItem Usage Stats
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Abstract
Terbium doped yttrium oxide (Y2O3:Tb3+) nanophosphor has been synthesized via a facial yet modified co-precipitation method. To get maximum luminescence output from Y2O3:Tb3+nanophosphors, surfactants namely, Cetyl trimethylammonium bromide (CTAB) and Trioctylphosphine oxide (TOPO) were added during synthesis. Further, it has been observed that combined addition of surfactant (CTAB�+�TOPO) at the time of synthesis has resulted in nearly spherical morphology of the nanophosphor. Furthermore, these optimized material are observed to have enhanced integrated photoluminescence (PL) intensity of ∼23% as compared to the one synthesized without the addition of any surfactant. The results are further supported by detailed structural and optical studies. Optimum use of surfactants during synthesis shows for the first time that both nano-sized distribution and high crystallinity can be achieved simultaneously which has resulted in bright green emission in Tb3+doped Y2O3nanophosphors.
Keywords
Co-precipitationCoprecipitation
Optical materials
Phosphors
Precipitation (chemical)
Surface active agents
Yttrium oxide
Cetyltrimethylammonium bromide
Coprecipitation method
Green emissions
High crystallinity
Optical study
Photoluminescence intensities
Spherical morphologies
Trioctylphosphine oxide
Luminescence