Patent ID: 7070867

Claim:
An organic light emitting device comprising: an anode; a cathode; and an organic layer disposed between the anode and the cathode, wherein the organic layer comprises a host material, an alkali metal or an alkaline earth metal, and a metal binding agent; and wherein (a) the metal binding agent is electrically neutral; or (b) the metal binding agent comprises a compatibilizer; or (c) the host material is selected from a material having the formula wherein m is 2 to 8 and each R is independently selected from alkyl, aryl and aralkyl; or (d) the metal binding agent is electrically neutral, and the metal binding agent comprises a compatibilizer; or (e) the metal binding agent is electrically neutral, and the host material is selected from a material having the formula wherein m is 2 to 8 and each R is independently selected from alkyl, aryl and aralkyl; or (f) the metal binding agent comprises a compatibilizer, and the host material is selected from a material having the formula wherein m is 2 to 8 and each R is independently selected from alkyl, aryl and aralkyl; or (g) the metal binding agent is electrically neutral, the metal binding agent comprises a compatibilizer, and the host material is selected from a material having the formula wherein m is 2 to 8 and each R is independently selected from alkyl, aryl and aralkyl.