Electroluminescent device
The present invention relates to electroluminescent devices that comprise organic layers that contain triazole compounds of the formula (I), or formula (II). The compounds are suitable components of, for example, blue-emitting, durable, organo-electroluminescent layers. The electroluminescent devices may be employed for full color display panels in, for example, mobile phones, televisions and personal computer screens.
1. A compound of the formula:
2. A compound of the formula
wherein
X, Y and W are a group of the formula —W 1 -(W 2 ) b -W 3 ,
wherein b is 0, or, 1,
W 1 and W 2 are independently of each other a group of formula
R 18 and R 19 are independently of each other C 1 -C 8 alkyl or cyclohexyl, and
W 3 is a group of formula
3. A compound of the formula:
4. A composition, comprising a compound according to claim 2 and a phosphorescent compound.
5. An electroluminescent device, comprising a compound according to claim 2 .
6. Electroluminescent device according to claim 5 , wherein the electroluminescent device comprises in this order
(a) an anode,
(b) a hole injecting layer and/or a hole transporting layer,
(c) a light-emitting layer,
(d) optionally an electron transporting layer and
(e) a cathode.
7. An electrophotographic photoreceptor, photoelectric converter, solar cell, image sensor or dye laser comprising a compound according to claim 2 .
8. An electrophotographic photoreceptor, photoelectric converter, solar cell, image sensor or dye laser comprising a composition according to claim 4 .
9. An electroluminescent device, comprising a composition according to claim 4 .
10. Electroluminescent device according to claim 9 , wherein the electroluminescent device comprises in this order
(a) an anode,
(b) a hole injecting layer and/or a hole transporting layer,
(c) a light-emitting layer,
(d) optionally an electron transporting layer and
(e) a cathode.