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Synthesis and electro-optical properties of biphenyl analogues

Title
Synthesis and electro-optical properties of biphenyl analogues
Author(s)
Kim, Ki-SooJeong, SeonjuKim, ChamKim, EunjuKwon, YounghwanKim, HoyoungChoi, Byoung-DaeHan, Yoon Soo
Issued Date
2010-04
Citation
Synthetic Metals, v.160, no.7-8, pp.549 - 555
Type
Article
Author Keywords
PhenoxazineAnthracene6-PhenylphenanthridineTetrahydropyreneOrganic light-emitting diode
Keywords
6-PhenylphenanthridineAnthraceneBlue DopantCOREDERIVATIVESDiodesDouble LayersElectronic Band StructureElectrooptical Propertiesemitting Layeremitting MaterialEnd GroupsHost MaterialsLIGHT-emITTING-DIODESLight emissionLight emitting DiodesMOLECULAR MATERIALSMolecular MicrostructureMolecular Orbital EnergyMolecular OrbitalsOptical PropertiesORGANIC ELECTROLUMINESCENT DEVICESOrganic Light-emitting DiodeOrganic Light emitting Diodes (OLED)PhenoxazinePHOTOLUMINESCENCESuzuki-Coupling ReactionSynthesis (Chemical)Synthesized MaterialsTetrahydropyreneThermal StabilityThermodynamic StabilityTRANSPORT-PROPERTIES
ISSN
0379-6779
Abstract
Three emitting materials containing a biphenyl core connected at both ends with phenoxazine or anthracene groups, 10-(3-(10H-phenoxazin-10-yl)-6-phenylphenanthridin-8-yl)-10H-phenoxazine (DPoPP), 8-(anthracen-10-yl)-3-(anthracen-9-yl)-6-phenylphenanthridine (DAnPP), and 2-(anthracen-10-yl)-7-(anthracen-9-yl)-4,5,9,10-tetrahydropyrene (DAnTP) were synthesized via the C-N Ullmann coupling or C-C Suzuki-coupling reaction. Optical properties, thermal stabilities and molecular orbital energies were analyzed as a function of their molecular microstructure. The thermal stabilities of them were influenced by biphenyl core. On the other hand, their emissions were primarily affected by anthracene or phenoxazine end groups. Two compounds with anthracene moiety at both ends showed electronic band structures suitable for host materials for reported blue dopants. The double-layer OLED (organic light-emitting diode) devices, ITO/NPD/synthesized material/LiF/Al, containing the synthesized materials as emitting layer emitted yellowish-green (DPoPP), greenish-blue (DAnPP) and blue (DAnTP). © 2009 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/20.500.11750/2495
DOI
10.1016/j.synthmet.2009.12.001
Publisher
Elsevier
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