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Structure Characterisation and Optical Properties of Eu3+-Doped LaAlO3

In this paper, Eu3+-doped LaAlO3 powders which with the concentration of Eu3+ in the range of 0~5% were prepared by a new liquid mixing method. The structure of the LaAlO3 powders were investigated by X-ray diffraction (XRD), and the influence of the increase of temperature on the crystal structure were also studied. We found that the powders crystallized above 800 which means higher temperature can improve the crystallization. The influences of the increasing Eu3+ concentration were also studied through the XRD patterns. The average sizes of the samples were also calculated by the Sherrer equation. The optical properties of different concentration of Eu3+-doped LaAlO3 particles were investigated through the reflection spectra.