title: Synthesis and electro-optical properties of carbazole-substituted pyrene derivatives.
abstract: Mono and dicarbazole-substituted pyrene derivatives, 9H-carbazol-9-ylpyrene (MCzP) and 1,6-di(9H-carbazol-9-yl)pyrene (DCzP), with dual-purpose function as a blue emitting and charge transporting layer in organic light emitting diodes, were synthesized and characterized. These series of molecules consisted of an electron donating (D) carbazole and an electron accepting (A) pyrene in D-A and D-A-D shapes. Non-doped blue electroluminescent devices with the configurations of ITO (150 nm)/alpha-NPD (30 nm)/DCzP (40 nm)/LiF (1 nm)/Al (150 nm) (D1) and ITO (150 nm)/2-TNATA (15 nm)/alpha-NPD (20 nm)/DCzP (40 nm)/BCP (15 nm)/Alq3 (10 nm)/LiF (1 nm)/Al (120 nm) (D2) were fabricated. D1 and D2 devices showed blue emission at 492 nm and 488 nm, and maximum luminance of 840 and 7560 cd/m2 obtained at 13 V and 15 V, respectively.
authors.affiliation: Division of Nano & Bio Technology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 711-873, Korea.
authors.forename: Seonju
authors.initials: S
authors.lastname: Jeong
authors.forename: Sung Hwan
authors.initials: SH
authors.lastname: Park
authors.forename: Ki-Soo
authors.initials: KS
authors.lastname: Kim
authors.forename: Younghwan
authors.initials: Y
authors.lastname: Kwon
authors.forename: Ki-Ryong
authors.initials: KR
authors.lastname: Ha
authors.forename: Byeong-Dae
authors.initials: BD
authors.lastname: Choi
authors.forename: Yoon Soo
authors.initials: YS
authors.lastname: Hans
mesh_terms: D002227:Carbazoles / Q000737:chemistry*; D004563:Electrochemistry; D009682:Magnetic Resonance Spectroscopy; D055095:Optics and Photonics; D011721:Pyrenes / Q000138:chemical synthesis* / Q000737:chemistry
chemical_list: D002227:Carbazoles; D011721:Pyrenes; C041514:carbazole; C030984:pyrene