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Fabrication, structure and luminescence properties of Ce:Lu3Al5O12 polycrystalline films
Ist Teil von
Journal of alloys and compounds, 2013-03, Vol.552, p.6-9
Ort / Verlag
Kidlington: Elsevier B.V
Erscheinungsjahr
2013
Link zum Volltext
Quelle
Elsevier ScienceDirect Journals Complete
Beschreibungen/Notizen
Polycrystalline Ce3+ doped lutetium aluminum garnet (Ce:Lu3Al5O12, Ce:LuAG) films have been successfully fabricated by Pechini sol–gel method combined with spin-coating technique and characterized. X-ray diffraction (XRD) indicated that Ce:LuAG film begin to crystallize at 900°C and well crystallized into garnet LuAG phase after being calcined at higher temperature. The atomic force microscope (AFM) observation revealed that the obtained films were uniform and crack-free, consisting of closely packed particles with an average size of 50–80nm. The photoluminescence (PL) spectra showed the typical Ce3+ emissions and the intensity varies with the Ce3+ concentrations and reaches the maximum at doped with 1.2mol%. The effect of heat-treatment temperature on the luminescent properties was also investigated.