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BaMgAl 10 O 17 :Eu 2+ ,Yb 3+ was investigated as a possible quantum cutting system to enhance solar cells efficiency. Phosphors were synthesized by combustion method and composed of nanorods. Photoluminescence spectra showed that Eu in the sample was reduced to bivalence while Yb remained trivalence. Through a cooperative energy transfer process, the obtained powders...
Nanocrystalline cubic Y 2 O 3 :Eu were prepared by combustion reaction. The crystal structure and morphology were analyzed by means of X-ray diffraction (XRD) and transmission electron microscopy (TEM). The luminescent properties of the powder were investigated. The charge transfer band position showed redshift from 241 to 251 nm, which was related to the change of the local surroundings...
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