| 摘要 |
Compositions comprising at least one phosphorescent organometallic compound and a polymer comprising structural units of formula (II) are useful in organic light emitting devices wherein R, R, and Rare independently at each occurrence a C-Caliphatic radical, a C-Caromatic radical, or a C-Ccycloaliphatic radical; wherein Rand Rare independently selected from the group consisting of hydrogen, triphenylsilyl, t-butyl, mesityl, diphenyl phosphine oxide, and diphenyl phosphine sulfide; and a, b and d are independently 0 or an integer ranging from 1 to 3. |
