Patent ID: 7195829
Filing Date: 2007-03-27
Classification: C09K,H01L,H05B,Y10S

Abstract:
1. An electroluminescent device comprising a cathode, an anode, and therebetween a layer containing a host material consisting essentially of one or more selected from the group consisting of anthracene compounds and metal chelated oxinoid compounds, the layer further containing an ethynyl compound of Formula (1): in an amount sufficient to stabilize the device wherein A and B represent independently selected fused carbocyclic ring groups, wherein the layer contains a third material which emits light, wherein the third material is selected from the group consisting of derivatives of anthracene, tetracene, xanthene, perylene, rubrene, coumarin, rhodamine, quinacridone, dicyanomethylenepyran, thiopyran, polymethine, pyrylium, thiapyrylium, periflanthene, indenoperylene, bis(azinyl)amine boron compounds, bis(azinyl)methane compounds, and carbostyryl compounds wherein the ethynyl compound is present in an amount of 0.5–20%, the light emitting third component is present in an amount of 0.1 to 10 wt %, and the balance is the host.