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Journal of Materials Science: Materials in Electronics
Erschienen in: Journal of Materials Science: Materials in Electronics 12/2019

14.05.2019

Single phased white light emitting Dy3+/Sm3+ co-doped CePO4 nanocrystals for white light applications

verfasst von: S. Sisira, Linju Ann Jacob, Kamal P. Mani, P. R. Biju, N. V. Unnikrishnan, Cyriac Joseph

Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 12/2019

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Abstract

Excitation dependent color tunable dysprosium and samarium co-doped cerium phosphate nanocrystals were synthesized via sol gel method. X-ray diffractograms confirmed that all the samples crystallized in monoclinic form. Morphology of the samples resembling a custard apple surface was demonstrated by FESEM analysis. The structural characterization carried out via FTIR and XPS analysis displayed the monoclinic CePO4 lattice as a good host providing minimum quenching environment. Luminescence characterizations were done in detail as a function of Dy3+ and Sm3+ doping concentrations by means of photoluminescence spectroscopy. Energy transfer from Ce3+ to Dy3+ and Sm3+ in CePO4 was established via the analysis of excitation spectra. The possibility of simultaneous activation of Dy3+ and Sm3+ ions was utilized to generate white light. Excitation dependent luminescence measurements were also carried out to explore the yellow-white-orange- red color tunability of synthesized samples for different excitations. The codoping of Sm3+ with Dy3+ is found to be more suitable for generating white light with CIE values close to the standard white and stands as a potential candidate in the field of white light applications.
Vorheriger Artikel Niobium oxide prepared by sol–gel using powder coconut water
Nächster Artikel Formation of Ag3PO4/AgBr composites with Z-scheme configuration by an in situ strategy and their superior photocatalytic activity with excellent anti-photocorrosion performance

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Metadaten
Titel
Single phased white light emitting Dy3+/Sm3+ co-doped CePO4 nanocrystals for white light applications
verfasst von
S. Sisira
Linju Ann Jacob
Kamal P. Mani
P. R. Biju
N. V. Unnikrishnan
Cyriac Joseph
Publikationsdatum
14.05.2019
Verlag
Springer US
Erschienen in
Journal of Materials Science: Materials in Electronics / Ausgabe 12/2019
Print ISSN: 0957-4522
Elektronische ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-019-01483-x

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