title: Hybrid Structure White Organic Light Emitting Diode for Enhanced Efficiency by Varied Doping Rate.
abstract: Novel materials based on Zn(HPB)2 and Ir-complexes were synthesized as blue or red emitters, respectively. White organic light emitting diodes were fabricated using the Zn(HPB)2 as a blue emitting layer, Ir-complexes as a red emitting layer and Alq3 as a green emitting layer. The obtained experimental results, were based on white OLEDs fabricated using double emission layers of Zn(HPB)2 and Alq3:Ir-complexes. The doping rate of the Ir-complexes was varied at 0.4%, 0.6%, 0.8% and 1.0%. When the doping rate of the Alq3:Ir-complexes was 0.6%, a white emission was achieved. The Commission Internationale de l'Eclairage coordinates of the device's white emission were (0.316, 0.331) at an applied voltage of 10.75 V.
authors.forename: Dong-Eun
authors.initials: DE
authors.lastname: Kim
authors.forename: Min-Jae
authors.initials: MJ
authors.lastname: Kang
authors.forename: Gwang-Ryeol
authors.initials: GR
authors.lastname: Park
authors.forename: Nam-Kyu
authors.initials: NK
authors.lastname: Kim
authors.forename: Burm-Jong
authors.initials: BJ
authors.lastname: Lee
authors.forename: Young-Soo
authors.initials: YS
authors.lastname: Kwon
authors.forename: Hoon-Kyu
authors.initials: HK
authors.lastname: Shin
mesh_terms: D005453:Fluorescence; D008027:Light