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A high performance nondoped blue organic light-emitting device based on a diphenylfluoranthene-substituted fluorene derivative
Cited 41 time in
Web of Science
Cited 41 time in Scopus
- Authors
- Issue Date
- 2009-04
- Publisher
- American Chemical Society
- Citation
- Journal of Physical Chemistry C, Vol.113 No.15, pp.6227-6230
- Abstract
- A new blue light-emitting fluorene derivative 2,7-di[8-(7,10-diphenylfluoranthenyl)]-9,9-dimethylfluorene (DFDF) with good thermal stability at 420 degrees C has been synthesized and characterized. An organic light-emitting device (OLED) with the structure of ITO/NPB (70 nm)/DFDF (30 nm)/TPBI (20 nm)/LiF (0.5 nm)/Al (100 nm) has been investigated, where DFDF serves as a nondoped host emitter. Such a device possesses high current and power efficiencies of 3.8 cd/A and 2.6 lm/W, respectively, and stable bright blue-light emission at lambda = 474 nm with Commission Internationale de L'Eclairage coordinates of (0.16, 0.23) over a wide range of operating voltages. The present results verify that DFDF is a promising candidate for a fluorescent bluelight-emitting OLED.
- ISSN
- 1932-7447
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