Patent ID: 8697256
Filing Date: 2014-04-15
Classification: C07D,C08G,C08K,C08L,C09K,H01L,H05B

Abstract:
1. A composition comprising a phosphorescent emitting compound, and a compound having a structure containing three or more repeating units having a magnitude of dipole moment of 1.0 Debye or more connected in series, wherein, based on the total number of dimer structures composed of any two repeating units connected in series contained in said structure, the proportion of the number of dimer structures in which the magnitude D is 50% or more, wherein said repeating unit is a repeating unit represented by a formula selected from the group consisting of the following formulae (1-1), (1-2), (1-3), (1-4), (2-1), (2-2), (2-3), (3-1), (3-2) and (3-3): wherein R