Patent ID: 7619356
Filing Date: 2009-11-17
Classification: H01B,H01L,H05B,Y02E

Abstract:
1. An organic electroluminescent device comprising a substrate, an anode, an emitting layer and a cathode, wherein the anode comprises an Indium Tin Oxide (ITO) film, wherein nitrogen-containing compounds produced by reactions of nitrogen with at least one atom selected from the group consisting of In, Sn and O atoms which are constitutional elements of ITO, or deposited nitrogen-containing compounds are present on a surface of the ITO film, and the nitrogen-containing compounds on the surface are formed by treating the ITO film with nitrogen plasma, wherein a discharge gas comprising one gas selected from the consisting of ammonia, a mixed gas of nitrogen and ammonia, and a mixed gas of nitrogen and hydrogen is used for the nitrogen plasma, and wherein the organic electroluminescent device comprises a hole injection layer and the hole injection layer comprises hexaazatriphenylenehexacarbonitrile.