Patent ID: 6387544
Filing Date: 2002-05-14
Classification: C07C,C07D,C09K,H01L,H05B,Y10S

Abstract:
An organic light emitting device comprising a heterostructure for producing electroluminescence, wherein the heterostructure comprisesa substrate; an anode layer; a hole transporting layer having a glass structure, and wherein the hole transporting layer comprises a compound of the formula: â€ƒwherein Ar1 and Ar2 are substituted or unsubstituted arene moieties, with the proviso that Ar1 and Ar2 are different and at least one of Ar1 and Ar2 is unsubstituted, or wherein R1 and R2 are, independently of one another, selected from the group consisting of hydrogen, an alkyl group, a phenyl group, a substituted alkyl group and a substituted phenyl group, and wherein R1 and R2 may be bridged; an electron transporting layer; and a cathode layer.