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???????????????????????????????????? RE3+ ??? Li1+x (Ta1-zNbz)1-xTixO3 (LTNT) ???????????????RE ? Eu?Er?Tm???? Dy ???????????????? (PL) ????????????????????????????????????????????Eu3+ ??? Li1.11Ta0.89Ti0.11O3 (x=0.11?z=0)?Er3+ ??? Li1.03 (Ta0.2Nb0.8)0.97Ti0.03O3 (x=0.03?z=0.8)?Tm3+ ??? Li1.08 (Ta0.4Nb0.6)0.92Ti0.08O3 (x=0.08?z=0.6)???? Dy3+ ??? Li1.14 (Ta0.6Nb0.4)0.86Ti0.14O3 (x=0.14?z=0.4) ??????????????PL ?????????????????????XRD-???????????????????? LTNT????????????????????Eu3+??????????????97%????????PL???????LTNT?[Li(Eu)O12]???????Eu3+?????????????????