Patent ID: 8367221

Claim:
An organic light emitting device, comprising a substrate, an anode layer formed on said substrate, an organic function layer formed on said anode layer, and a cathode layer formed on said organic function layer, and further comprising a cathode interface modification layer between said organic function layer and said cathode layer, wherein said cathode interface modification layer contains a compound A x B y C z and/or a mixture formed by decomposing said compound A x B y C z , where A is an element of Group IA or IIA, B is an element of Group IIIA or VA, and C is a hydrogen element, and 1≦x≦2, yε[0,1], 1≦z≦4, said mixture comprises one of KH or K, and said compound A x B y C z comprises one of KBH 4 NaBH 4 or KAlH 4 .