Red phosphorescent composition and organic electroluminescent device using the same

摘要

A red phosphorescent composition includes a host material being capable of transporting an electron or a hole; and a dopant material represented by the following Formula 1:;
wherein each of R1 to R4 is selected from the group consisting of hydrogen atom (H), C1 to C6 alkyl and C1 to C6 alkoxy, and at least one of R1 to R4 is C1 to C6 alkyl, and wherein each of R5 to R7 is selected from the group consisting of hydrogen, C1 to C6 alkyl and halogen atom, and at least one of R5 to R7 is halogen atom, and wherein each of X and Y is selected from the group consisting of H, non-substituted C1 to C6 alkyl and C1 to C6 alkyl substituted by fluorine.

主权项

1. A red phosphorescent composition comprising:
a host material being capable of transporting an electrode or a hole; and a dopant material represented by Formula 1: wherein each of R1 to R4 is selected from the group consisting of hydrogen atom (H) and non-substituted C1 to C6 alkyl, and at least one of R1 to R3 is non-substituted C1 to C6 alkyl, wherein two of R5 to R7 are selected from the group consisting of halogen atom and non-substituted C1 to C6 alkyl, provided at least one is halogen, and one of R5 to R7 is hydrogen atom, and wherein each of X and Y is selected from the group consisting of H, non-substituted C1 to C6 alkyl and C1 to C6 alkyl substituted by fluorine.