Bright electrophosphorescent devices based on sterically hindered spacer-containing Cu(I) complex
Document Type
Article
Publication Date
8-1-2008
Abstract
A Cu(I) complex, [Cu(Dppp)(DPEphos)]BF4 (Dppp=2,3-diphenyl-pyrazino[2,3-f][1,10]phenanthroline, DPEphos=Bis[2-(diphenylphosphino)phenyl]ether), is synthesized and used as the dopant in bright electrophosphorescent devices with the general structure ITO/m-MTDATA (30 nm)/NPB (20 nm)/CBP: ×wt% [Cu(Dppp)(DPEphos)]BF4 (30 nm)/Bphen (20 nm)/Alq3 (20 nm)/LiF (0.8 nm)/ Al (200 nm). These devices exhibit a maximum brightness of 4483 cd/m2 and a peak efficiency of 3.4 cd/A. Compared with previously reported similar devices based on Cu(I) complexes, the brightness of the devices presented in this article is the best. Meanwhile, 2% [Cu(Dppp)(DPEphos)]BF4-based devices exhibit white light-emitting properties with CIE coordinates of (0.32. 0.35) at 10 V. © 2007 Elsevier B.V. All rights reserved.
Publication Source (Journal or Book title)
Journal of Luminescence
First Page
1303
Last Page
1306
Recommended Citation
Si, Z., Li, J., Li, B., Liu, S., & Li, W. (2008). Bright electrophosphorescent devices based on sterically hindered spacer-containing Cu(I) complex. Journal of Luminescence, 128 (8), 1303-1306. https://doi.org/10.1016/j.jlumin.2007.12.035