OLED devices with internal outcoupling
View Patent ↗Optoelectronic devices with enhanced internal outcoupling include a substrate, an anode, a cathode, an electroluminescent layer, and electron transporting layer comprising a fluoro compound of formula I (Ar 2 ) n —Ar 1 —(Ar 2 ) n I wherein Ar 1 is C 5 -C 40 aryl, C 5 -C 40 substituted aryl, C 5 -C 40 heteroaryl, or C 5 -C 40 substituted heteroaryl; Ar 2 is, independently at each occurrence, fluoro- or fluoroalkyl-substituted C 5-40 heteroaryl; and n is 1, 2, or 3.
1. A fluoro compound of formula II
wherein Ar 3 is independently at each occurrence a direct bond, C 6-35 aryl, or C 5-35 heteroaryl and R is fluoroalkyl.
2. A fluoro compound according to claim 1 , wherein Ar 3 is independently at each occurrence phenyl, pyridinyl, or biphenyl.
3. A fluoro compound having the following formula:
4. A fluoro compound having the following formula:
5. An optoelectronic device comprising a substrate; an anode; a cathode; an electroluminescent layer; and electron transporting layer comprising a fluoro compound according to claim 1 .
6. An optoelectronic device according to claim 5 , wherein R is fluoro-methyl.
7. A fluoro compound according to claim 1 wherein R is fluoro-methyl.
8. An optoelectronic device comprising a substrate; an anode; a cathode; an electroluminescent layer; and electron transporting layer comprising a fluoro compound according to claim 2 .
9. A fluoro compound according to claim 2 wherein R is fluoro-methyl.
10. An optoelectronic device comprising a substrate; an anode; a cathode; an electroluminescent layer; and electron transporting layer comprising a fluoro compound according to claim 9 .
11. An optoelectronic device comprising
a substrate;
an anode;
a cathode;
an electroluminescent layer; and
electron transporting layer comprising the fluoro compound of claim 3 .
12. An optoelectronic device comprising
a substrate;
an anode;
a cathode;
an electroluminescent layer; and
electron transporting layer comprising the fluoro compound of claim 4 .