Correlation of Cathodoluminescence of ABO3:Pr3+ Phosphor with Its Crystal Structure
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概要
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We have studied the cathodoluminescence (CL) behaviors of ABO<SUB>3</SUB>:Pr<SUP>3+</SUP> phosphors. It is found that the ABO<SUB>3</SUB>:Pr<SUP>3+</SUP> phosphors can emit a very wide range of spectrum of colors except bright green. Also, the color of the emitted spectrum of the ABO<SUB>3</SUB>:Pr<SUP>3+</SUP> phosphors is dependent on the crystal phase of its host lattice. When the crystal lattice parameters of the host lattice are the same, i.e., <I>a</I>=<I>b</I>=<I>c</I>, the blue–green transition <SUP>3</SUP><I>P</I><SUB>0</SUB>→<SUP>3</SUP><I>H</I><SUB>4</SUB> appears to be preferred. While the crystal angles of the host lattice are the same, i.e., α=β=γ, the red transition <SUP>1</SUP><I>D</I><SUB>2</SUB>→<SUP>3</SUP><I>H</I><SUB>4</SUB> seems to be preferred. For other crystal phases except the aforementioned two extreme cases, the phosphors show whitish emissions.
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公益社団法人 応用物理学会 | 論文
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