title: Highly Efficient White Organic Light Emitting Diodes Using New Blue Fluorescence Emitter.
abstract: Two different emitting compounds, 1-[1,1';3',1"]Terphenyl-5'-yl-6-(10-[1,1';3',1"]terpheny-5'-yl- anthracen-9-yl)-pyrene (TP-AP-TP) and Poly-phenylene vinylene derivative (PDY 132) were used to white OLED device. By incorporating adjacent blue and yellow emitting layers in a multi-layered structure, highly efficient white emission has been attained. The device was fabricated with a hybrid configuration structure: ITO/PEDOT (40 nm)/PDY-132 (8-50 nm)/ NPB (10 nm)/TP-AP-TP (30 nm)/Alq3 (20 nm)/LiF (1 nm)/Al (200 nm). After fixing TP-AP-TP thickness of 30 nm by evaporation, PDY-132 thickness varied with 8, 15, 35, and 50 nm by spin coating in device. The luminance efficiency of the white devices at 10 mA/cm2 were 2.93 cd/A-6.55 cd/A. One of white devices showed 6.55 cd/A and white color of (0.290, 0.331).
authors.forename: Seungho
authors.initials: S
authors.lastname: Kim
authors.forename: Beomjin
authors.initials: B
authors.lastname: Kim
authors.forename: Jaehyun
authors.initials: J
authors.lastname: Lee
authors.forename: Young-Jun
authors.initials: YJ
authors.lastname: Yu
authors.forename: Jongwook
authors.initials: J
authors.lastname: Park