Charge transport compositions and electronic devices made with such compositions

1. An electronic device comprising a photoactive layer and a second layer, wherein at least one layer comprises a quinoxaline derivative of Formula III:

wherein:

R 1 is the same or different at each occurrence and is selected from the group consisting of aryl, heteroaryl, alkylaryl, alkenylaryl, alkynylaryl, alkylheteroaryl, alkenylheteroaryl, alkynylheteroaryl, C 6 H c F d , and OC 6 H c F d ;

R 2 is the same or different at each occurrence and is selected from the group consisting of aryl, heteroaryl, alkylaryl, alkenylaryl, alkynylaryl, alkylheteroaryl, alkenylheteroaryl, alkynylheteroaryl, C 6 H c F d , and OC 6 H c F d ;

R 3 is the same or different at each occurrence and is selected from the group consisting of selected from alkylene, heteroalkylene, arylene, heteroarylene, arylenealkylene, and heteroarylenealkylene;

Q is selected from the group consisting of a single single-ring aromatic, a single-ring heteroaromatic, and arylamine;

c and d are 0 or an integer such that c+d =5;

m is an integer equal to at least 2;

p is 1; and

z is an integer from 1 through 3.

2. The device of claim 1 , wherein the second layer comprises a quinoxaline derivative having Formula III, and further wherein:

m is an integer from 2 through 10.

3. An electronic device of claim 2 , wherein the device is a light-emitting diode, light-emitting electrochemical cell, or a photodetector.

4. The device of claim 1 , wherein R 1 is selected from the group consisting of phenyl and substituted phenyl groups.

5. The device of claim 4 , wherein R 1 is selected from the group consisting of substituted phenyl groups having at least one suhstituent selected from F, Cl, Br, alkyl groups, heteroalkyl groups, alkenyl groups, and alkynyl groups.

6. The device of claim 1 , wherein R 1 is selected from arylcarbonyl groups.

7. The device of claim 1 , wherein R 2 is selected from the group consisting of phenyl groups, substituted phenyl groups, pyridyl groups, and substituted pyridyl groups.

8. The device of claim 1 , wherein R 3 is selected from the group consisting of aryl, hteroaryl, alkyl, and heteroalkyl.

9. The device of claim 1 , wherein R 3 is selected from the group consisting of phenyl and substituted phenyl.

10. The device of claim 1 , wherein R 3 is selected from the group consisting of alkyl and heteroalkyl having from 1 to 12 carbon atoms.

11. The device of claim 1 wherein Q is selected the group consisting of from a hydrocarbon group with at least two points of attachment, selected from an aromatic group, and a heteroaromatic group.

12. The device of claim 1 , wherein Q has Formula IV(b)

13. An electronic device of claim 1 , wherein the device is a light-emitting diode, light-emitting electrochemical cell, or a photodetector.