Invention Grant
US08623519B2 Red phosphorescent compound and organic electroluminescent device using the same 有权
红色磷光化合物和使用其的有机电致发光器件

Red phosphorescent compound and organic electroluminescent device using the same
Abstract:
A red phosphorescent compound of Formula I: wherein is and R1, R2, R3, R4 and R5 are as defined in the specification.
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