TiO2∶Eu3+ phosphors were prepared by sol-gel method with Eu(NO3)3·6H2O as the source.The effect of Eu3+ ion doping amount on the phase and luminescence properties of TiO2 matrix was studied.The TiO2 matrix was further discussed.The energy transfer mechanism of Eu3+ ions was characterized by X-ray diffraction (XRD),fluorescence spectra,and fluorescence lifetime decay curves.The results shown that the sample was anatase.Under the excitation of 395nm and 465nm,the main emission peak was at 615nm,which corresponded to the 5D0→7F2 electric dipole transition of Eu3+,which can be used for red phosphor.The energy transfer from the TiO2 matrix to the Eu3+ ions can achieve energy transfer through oxygen vacancy defects as an energy capture center,enhancing the luminescence of Eu3+ ions.The prepared TiO2∶Eu3+ phosphor can be used for a silicon solar cell.
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