Patent ID: 7291404
Filing Date: 2007-11-06
Classification: C07D,H01L,H05B,Y02E,Y10S

Abstract:
1. An electroluminescent device comprising an anode, a cathode, a buffer layer in contact with said anode, and a luminescent region provided between said anode and cathode, said luminescent region comprising; an electron injection and transporting zone and at least one of a hole injection and transporting zone and a mixed charge transport layer, wherein said electron injection and transporting zone and/or said mixed charge transporting layer comprises an azole compound of the formula (1): wherein one X represents N and the other X represents CH or N; Y is an atom or a group selected from the group consisting of O, S, and —N(R)—, wherein R is a hydrocarbyl group of from 1 to about 30 carbons; R Ar is an aromatic component.