Hole transport materials

An organic electronic device wherein one or more of the electroactive layers of the device contains a hole transport compound having Formula I:

• where:
• Ar1-Ar3 are selected from the group consisting of aryl groups and deuterated aryl groups, with the proviso that Ar1 is not the same as Ar2;
• E is the same or different at each occurrence and is selected from the group consisting of H, D, halide, alkyl, aryl, siloxane, deuterated alkyl, deuterated aryl, deuterated siloxane, and a crosslinking group;
• and
• n is an integer greater than or equal to 1.

A hole transport compound having Formula II:

• wherein:
• Ar4-Ar7 are the same or different and are aryl groups or deuterated aryl groups;
• E1 is the same or different at each occurrence and is selected from the group consisting of H, D, halide, alkyl, aryl, siloxane, deuterated alkyl, deuterated aryl, deuterated siloxane, and a crosslinking group;
• R1-R5 are the same or different at each occurrence and selected from the group consisting of D, F, CN, alkyl, fluoroalkyl, aryl, heteroaryl, amino, silyl, alkoxy, aryloxy, fluoroalkoxy, siloxane, siloxy, deuterated alkyl, deuterated partially-fluorinated alkyl, deuterated aryl, deuterated heteroaryl, deuterated amino, deuterated silyl, deuterated alkoxy, deuterated aryloxy, deuterated fluoroalkoxy, deuterated siloxane, deuterated siloxy, and crosslinking groups, wherein adjacent groups selected from R1-R5 can be joined together to form a fused ring;
• a-e are the same or different and are in integer from 0-4;
• m is an integer from 0-6;
• o is an integer greater than or equal to 1;
• with the proviso that at least two of a-e are greater than zero and at least two of R1-R5 are not D.

An organic electronic device wherein one or more of the electroactive layers of a device contains a hole transport compound having Formula II:

• wherein:
• Ar4-Ar7 are the same or different and are aryl groups or deuterated aryl groups;
• E1 is the same or different at each occurrence and is selected from the group consisting of H, D, halide, alkyl, aryl, siloxane, deuterated alkyl, deuterated aryl, deuterated siloxane, and a crosslinking group;
• R1-R5 are the same or different at each occurrence and selected from the group consisting of D, F, CN, alkyl, fluoroalkyl, aryl, heteroaryl, amino, silyl, alkoxy, aryloxy, fluoroalkoxy, siloxane, siloxy, deuterated alkyl, deuterated partially-fluorinated alkyl, deuterated aryl, deuterated heteroaryl, deuterated amino, deuterated silyl, deuterated alkoxy, deuterated aryloxy, deuterated fluoroalkoxy, deuterated siloxane, deuterated siloxy, and crosslinking groups, wherein adjacent groups selected from R1-R5 can be joined together to form a fused ring;
• a-e are the same or different and are in integer from 0-4;
• m is an integer from 0-6;
• o is an integer greater than or equal to 1;
• with the proviso that at least two of a-e are greater than zero and at least two of R1-R5 are not D.