2F03 希土類をドープしたヘキサセルジアンのトライボルミネッセンス

概要

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Luminescence induced by fracture has been observed in rare earth element-doped hexacelsian (BaAl_2Si_2O_8). The color of the luminescence varies depending on the kinds of doped rare earth elements. Sm^<2+>-doped hexacelsian exhibits a luminescence of red color. Yb^<2+>-doped hexacelsian shows a luminescence of green color. A luminescence of blue color is observed Ce^<3+>-doped hexacelsian. The fracture-induced luminescence spectrum agrees well with photoluminescence spectrum. It is inferred that the origin of the luminescence is the electronic transition of rare earth ions excited by photons emitted due to fracture of hexacelsian.
1997-10-02