Patent ID: 6391481
Filing Date: 2002-05-21
Classification: C08G,H01L,Y10S,Y10T

Abstract:
An electroluminescent assembly comprising:(a) a base electrode, (b) a top electrode, and (c) a hole injection layer comprising a polymeric organic conductor applied either from a solution containing particles having a particle size of less than 1 &mgr;m or from a dispersion containing particles having a particle size of less than 1 &mgr;m, wherein the polymeric organic conductor comprises a substituted or unsubstituted, uncharged or cationic 3,4-polyalkylenedioxy thiophene of the formula â€ƒwherein n represents an integer from 5 to 100, and R represents H, a substituted or unsubstituted alkyl radical having from 1 to 20 carbon atoms, â€”CH2â€”OH, or an aryl radical having 6 to 14 carbon atoms.