The influence of the nanocrystals size and surface on the Yb/Er doped LaF3 luminescence properties

Up-conversion luminescence and thermoluminescence properties of LaF3 nanocrystals, with sizes of about 20 nm, were studied and discussed in relation to -size and surface related effects. XPS spectra have evidenced the presence of oxidized Er and La ions within a thin layer (of about 1 nm thickness)...

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Veröffentlicht in:	Journal of alloys and compounds 2019-06, Vol.791, p.1098-1104
Hauptverfasser:	Secu, C.E., Matei, E., Negrila, C., Secu, M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Erbium Fluorides Fluorine Lanthanum fluorides Luminescence Nanocrystals Optical properties Surface layers Thermoluminescence Thickness Up-conversion luminescence Upconversion X-ray photoelectrons Ytterbium
Online-Zugang:	Volltext
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