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We demonstrate an excellent electrophosphorescent organic light-emitting diodes (PHOLEDs) with double-emitting layers (D-EML) and LiF-doped TPBi as electron transport layer (ETL),which has the structure of ITO / NPB (30nm) / CBP:Ir(ppy)3 (20nm) / TPBi:Ir(ppy)3 (10nm) / TPBi (10nm) / TPBi:LiF (40nm) / LiF (1.2nm)/A1 (150nm).