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The reddish orange Sm3+-doped tetragonal perovskite BaTiO3 (BTO) phosphors for white LEDs were synthesized by the simple solid state reaction method. These phosphors, which can be effectively excited by the near ultraviolet light 409nm (6P3/2 (Γ7)→6H5/2 (Γ7)), produces the emitted reddish orange light peaks locate at about 561nm, 595nm and 643nm originated from the transitions of 4G5/2 (Γ7)→6H5/2...
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