| Ethynylphenyl-Linked Carbazoles as a Single-Emitting Component for White Organic Light-Emitting Diodes | |
| Adhikari, Ravi M. ; Duan, Lian ; Hou, Liudong ; Qiu, Yong ; Neckers, Douglas C. ; Shah, Bipin K. | |
| 2010-10-12 ; 2010-10-12 | |
| 关键词 | CONJUGATED DENDRIMERS ELECTROLUMINESCENT DIODES PHOTOPHYSICAL PROPERTIES TRANSPORT MATERIALS DEVICE APPLICATIONS BLUE POLYMERS COPOLYMERS EMISSION GREEN Chemistry, Physical Materials Science, Multidisciplinary |
| 中文摘要 | A comparative photophysical Study of several new dendrimers consisting of the ethynylphenyl core and carbazole dendrons (1-5) is presented. Dilute solutions of 1-5 show intense blue emission in dichloromethane (lambda(max) = 410-438 nm, phi(F) = 0.53-0.91, tau(F) = 2.09-3.91 ns). The solvatochromic and solid-state emission behavior of 1-5 (lambda(max) = 426-443 nm, phi(F) = 0.30-0.90) is discussed. The geometry of 5 allows formation of a strong electromeric state, which was not the case with 1, indicating that the ethynylphenyl group can be used to tune dendrimer electroluminescence (EL) properties. An organic light-emitting diode (OLED) consisting of I as the emitting layer showed blue emission (CIE: 0.28, 0.20), whereas the EL of 5 (CIE: 0.34, 0.36) was found to be close to ideal white light. White OLEDs consisting of 5 as the emitting layer showed a maximum brightness of 450 cd/m(2) and a maximum efficiency of 0.11 cd/A at 11 V. |
| 语种 | 英语 ; 英语 |
| 出版者 | AMER CHEMICAL SOC ; WASHINGTON ; 1155 16TH ST, NW, WASHINGTON, DC 20036 USA |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/81114]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | Adhikari, Ravi M.,Duan, Lian,Hou, Liudong,et al. Ethynylphenyl-Linked Carbazoles as a Single-Emitting Component for White Organic Light-Emitting Diodes[J],2010, 2010. |
| APA | Adhikari, Ravi M.,Duan, Lian,Hou, Liudong,Qiu, Yong,Neckers, Douglas C.,&Shah, Bipin K..(2010).Ethynylphenyl-Linked Carbazoles as a Single-Emitting Component for White Organic Light-Emitting Diodes.. |
| MLA | Adhikari, Ravi M.,et al."Ethynylphenyl-Linked Carbazoles as a Single-Emitting Component for White Organic Light-Emitting Diodes".(2010). |
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