New blue host materials based on anthracene-containing dibenzothiophene
| Autor: | Hong Huang, Zhi Yong Wu, Kok Wai Cheah, Chin H. Chen, Lei Wang, Wai Yeung Wong |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Organic electronics
Anthracene business.industry Lithium fluoride General Chemistry Electroluminescence Condensed Matter Physics Fluorescence Electronic Optical and Magnetic Materials Biomaterials Crystallography chemistry.chemical_compound chemistry Dibenzothiophene Materials Chemistry Optoelectronics Electrical and Electronic Engineering Chromaticity business HOMO/LUMO |
| Zdroj: | Organic Electronics. 12:595-601 |
| ISSN: | 1566-1199 |
| DOI: | 10.1016/j.orgel.2011.01.002 |
| Popis: | A series of novel host blue-emitting materials based on anthracene have been synthesized and investigated in which, a π -electron-rich dibenzothiophene moiety was introduced as a side group to fine adjust the HOMO/LUMO levels of the anthracene and enhance the ability of hole-transport and electron-injection. These materials exhibit good film-forming capabilities, and display strong blue fluorescence in solution. To explore the electroluminescent properties of these materials, sky blue devices of 2-TNATA (60 nm)/NPB (10 nm)/Host: BUBD-1 (40 nm)/Alq 3 (15 nm)/LiF (1 nm)/Al (150 nm) were fabricated. For the device with 9, 10-bis(dibenzothiophen-4-yl)anthracene as the host, an electroluminescence efficiency of 13.14 cd/A and 6.76 lm/W at 20 mA/cm 2 and 6.09 V were achieved, with Commission Internationale d’Eclairage (CIE x , y ) color coordinates of ( x = 0.15, y = 0.30). |
| Databáze: | OpenAIRE |
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