发明授权
US07851988B2 Green-emitting LED 有权
绿色发光LED

Green-emitting LED
摘要:
Phosphor from the class of the oxynitridosilicates, having a cation M which is doped with divalent europium and having the empirical formula M(1-c)Si2O2N2:Dc, where M=Sr or M=Sr(1-x-y)BaYCax with x+y
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