Bis-phenanthroimidazolyl compound and electroluminescent...

Details Bis-phenanthroimidazolyl compound and electroluminescent... Bis-phenanthroimidazolyl compound and electroluminescent...

2009-04-02

2011-11-01

Garrett, Dawn L. (Department: 1786)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C313S506000, C548S301700

Reexamination Certificate

active

08048542

ABSTRACT:
A bis-phenanthroimidazolyl compound having a following formula is disclosed.Where A1 and A2 comprise identical or different aromatic rings, A3 comprises a polyaromatic hydrocarbon or at least two aromatic groups, and each carbon in A1 to A3 and phenanthrol groups is independently substituted or non-substituted. The bis-phenanthroimidazolyl compound exhibits relatively better thermal properties with higher glass-transition temperature and efficient blue emission. The bis-phenanthroimidazolyl compound may function as a host emitter or charge-transporter. An electroluminescent device is also disclosed.

REFERENCES:
patent: 5281489 (1994-01-01), Mori et al.
patent: WO 2004/030029 (2004-04-01), None
Kuo et al., Journal of Materials Chemistry, (2009), vol. 19, pp. 1865-1871.
Xie et al., Journal of Materials Chemistry, (2007), vol. 17, pp. 861-865.
Song et al., Tetrahedron Letters, vol. 48, (2007), pp. 5397-5400.

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