| abstract |
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 In n(Ar 2 ) n —Ar 1 —(Ar 2 ) n In nwhereinn 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. |