| 摘要 |
PROBLEM TO BE SOLVED: To provide a luminescent material which has a high luminous efficiency and high accuracy and can emit light in the visible region. SOLUTION: The single crystal of the mixed crystal oxide is selected from the group consisting of (Y<SB>y</SB>Yb<SB>x</SB>)<SB>2</SB>SiO<SB>5</SB>, (Gd<SB>y</SB>Yb<SB>x</SB>)<SB>2</SB>SiO<SB>5</SB>, (Lu<SB>y</SB>Yb<SB>x</SB>)<SB>2</SB>SiO<SB>5</SB>, (Y<SB>y</SB>Yb<SB>x</SB>)NbO<SB>4</SB>, (Gd<SB>y</SB>Yb<SB>x</SB>)NbO<SB>4</SB>, (Lu<SB>y</SB>Yb<SB>x</SB>)NbO<SB>4</SB>, (Y<SB>y</SB>Yb<SB>x</SB>)TaO<SB>4</SB>, (Gd<SB>y</SB>Yb<SB>x</SB>)TaO<SB>4</SB>, and (Lu<SB>y</SB>Yb<SB>x</SB>)TaO<SB>4</SB>. In the formulae, x+y≤1.03, 0≤x≤1.03, and 0≤y≤1.03. COPYRIGHT: (C)2006,JPO&NCIPI
|
