Enhancement of Photoluminescence in Y3Al5O12:Eu3+ Ceramics by Li Doping

다국어 초록 (Multilingual Abstract)

Europium-doped yttrium aluminum garnet (YAG) ceramics and YAG ceramics with Li+ ions incorporated were synthesized using a solid state reaction method. The effects of Li+ doping on the crystallinity, morphology, structure, and luminescence spectra were investigated by using X-ray diraction (XRD), scanning electron microscopy (SEM) and uorescence spectroscopy measure- ments, respectively. As Li+ ions were added, not only was the crystallinity of YAG ceramic im- proved, but also the grain size was increased. The red emission with a 590 nm wavelength radiated from a 5D0-7F2 forced electric dipole transition of Eu3+ was remarkably enhanced by a factor of 2.9 due to the increase in the non-symmetric environment of Eu3+ ions caused the by substitution of Li+ ions.

참고문헌 (Reference)

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