Synthesis and electro-optical properties of carbazole derivatives for organic device applications
- Title
- Synthesis and electro-optical properties of carbazole derivatives for organic device applications
- Author(s)
- Kim, Ki-Soo ; Jeong, Seonju ; Kim, Cham ; Ham, Jae-Yong ; Kwon, Younghwan ; Choi, Byoung-Dae ; Han, Yoon Soo
- Issued Date
- 2009-09
- Citation
- Synthetic Metals, v.159, no.17-18, pp.1870 - 1875
- Type
- Article
- Author Keywords
- Carbazole ; Electroluminescence ; Host material ; Hole-transporting material
- Keywords
- Band Gap Energy ; Carbazole ; Carbazole Derivatives ; Diodes ; Doping (Additives) ; Double Layers ; Electroluminescence ; ELECTROLUMINESCENT DEVICES ; Electron Affinity ; Electronic Energy Levels ; Electrooptical Properties ; ELECTROPHOSPHORESCENCE ; Green emissions ; Green Light ; HIGH-EFFICIENCY ; Hole-Transporting Material ; Hole-Transporting Materials ; Hole-Transporting Property ; HOST ; Host Material ; Host Materials ; Ionization Potential ; IR(ppy)3 ; Iridium ; Light ; LIGHT-emITTING DEVICES ; Light emission ; Light Transmission ; Materials ; Maximum Luminance ; MECHANISMS ; Multi-Layer Devices ; OLEDS ; Optical Properties ; Organic Devices ; Polymer ; Single Bond ; Sound Insulating Materials ; Suzuki-Coupling Reaction ; Synthesis (Chemical) ; Two-Materials
- ISSN
- 0379-6779
- Abstract
- Two materials, DNCz and TCzPB, which contain carbazole moieties and exhibit high band gap energies, were synthesized via C{single bond}N coupling and Suzuki coupling reactions, respectively. The ionization potential and electron affinity of the synthesized TCzPB were measured at 5.89 and 2.39 eV, respectively, implying that it is suitable for a host material. A doped multilayer device, ITO/DNTPD/NPD/TCzPB + Ir(ppy)3/BCP/Alq3/LiF/Al, exhibited a bright green emission with a maximum luminance of 27,200 cd/m2 (17.6 cd/A at 18.0 V) when the synthesized TCzPB was used as the host material for a phosphorescent green dopant. The compound DNCz exhibited similar electronic energy levels to those of NPD, and was applied as a hole-transporting material. Bright green light originated from the Alq3 layer was observed in the double layer device, ITO/DNCz/Alq3/LiF/Al. The high hole-transporting property of DNCz was also demonstrated. © 2009 Elsevier B.V. All rights reserved.
- Publisher
- Elsevier
- Related Researcher
-
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Kim, Cham
- Research Interests
-
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- Appears in Collections:
- Division of Nanotechnology 1. Journal Articles
- Division of AI, Big data and Block chain 1. Journal Articles
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