An electroactive material comprising compound having Formula I, Formula I-a, Formula II, Formula II-a, Formula III, Formula III-a, a copolymer having Formula IV or Formula IV-a, a polymer having at least one monomeric unit of Formula V, Formula V-a, or Formula V-b, or a copolymer having Formula VI
- wherein:
- Ar1-Ar5 are the same or different at each occurrence and are selected from the group consisting of hydrocarbon aryl, heteroaryl, and deuterated analogs thereof;
- L1 and L2 are the same or different and are selected from the group consisting of H, D, halogen, aryl, arylamino, crosslinkable groups, deuterated aryl, deuterated arylamino, and deuterated crosslinkable groups;
- MU is a monomeric unit having Formula V;
- M is a conjugated moiety;
- MM is a conjugated moiety;
- R1-R4 are the same or different at each occurrence and are selected from the group consisting of D, F, CN, hydrocarbon aryl, heteroaryl, aryloxy, fluoroaryl, alkyl, fluoroalkyl, alkoxy, fluoroalkoxy, amino, silyl, siloxane, siloxy, germyl, deuterated hydrocarbon aryl, deuterated heteroaryl, deuterated aryloxy, deuterated fluoroaryl, deuterated alkyl, deuterated fluoroalkyl, deuterated alkoxy, deuterated fluoroalkoxy, deuterated amino, deuterated silyl, deuterated siloxane, deuterated siloxy, and deuterated germyl, wherein adjacent groups selected from R1-R4 can be joined together to form a fused ring;
- R1a and R3a are the same or different at each occurrence and are selected from the group consisting of a point of attachment to the copolymer, a hydrocarbon aryl group having a point of attachment to the copolymer, a heteroaryl group having a point of attachment to the copolymer, an alkyl group having a point of attachment to the copolymer, an alkylaryl group having a point of attachment to the copolymer, a deuterated hydrocarbon aryl group having a point of attachment to the copolymer, a deuterated heteroaryl group having a point of attachment to the copolymer, a deuterated alkyl group having a point of attachment to the copolymer, a deuterated alkylaryl group having a point of attachment to the copolymer, 0, F, CN, hydrocarbon aryl, heteroaryl, aryloxy, fluoroaryl, alkyl, fluoroalkyl, alkoxy, fluoroalkoxy, amino, silyl, siloxane, siloxy, germyl, deuterated hydrocarbon aryl, deuterated heteroaryl, deuterated aryloxy, deuterated fluoroaryl, deuterated alkyl, deuterated fluoroalkyl, deuterated alkoxy, deuterated fluoroalkoxy, deuterated amino, deuterated silyl, deuterated siloxane, deuterated siloxy, and deuterated germyl, wherein adjacent R1a and/or R3a groups can be joined together to form a fused ring;
- a and b are the same or different and are 0 or 1;
- R5 and R6 are the same or different at each occurrence and are selected from the group consisting of alkyl, aryl, and deuterated analogs thereof, where two alkyl R5 and R6 groups can be joined together to make a cycloalkyl spiro ring, and where two R5 and R6 phenyl groups can be joined to form a spiro fluorene group;
- j and k are non-zero mole fractions, where j+k=1;
- p, q, and r are mole fractions such that p+q+r=1, where p and q are non-zero;
- a is 0 or 1;
- b is 0 or 1;
- x and x1 are the same or different and are an integer from 0-5;
- y and y1 are the same or different and are an integer from 0-4;
- n and n1 are integers of 2 or greater;
- ** indicates a point of attachment in a copolymer;
- BzF is selected from the group consisting of BzF-1, BzF-2, and BzF-3;
- BzFa is selected from the group consisting of BzFa-1, BzFa-2, and BzFa-3;
- where:
- R5a and R6a are the same or different at each occurrence and are selected from the group consisting of alkyl, aryl, alkylaryl, alkyl having a point of attachment to the polymer, aryl having a point of attachment to the polymer, alkylaryl having a point of attachment to the polymer, and deuterated analogs thereof, where two alkyl R5a and R6a groups can be joined together to make a cycloalkyl spiro ring, and where two R5a and R6a phenyl groups can be joined to form a spiro fluorene group;
- R7 and R8 are the same or different at each occurrence and are selected from the group consisting of D, F, CN, hydrocarbon aryl, heteroaryl, aryloxy, fluoroaryl, alkyl, fluoroalkyl, alkoxy, fluoroalkoxy, amino, silyl, siloxane, siloxy, germyl, deuterated hydrocarbon aryl, deuterated heteroaryl, deuterated aryloxy, deuterated fluoroaryl, deuterated alkyl, deuterated fluoroalkyl, deuterated alkoxy, deuterated fluoroalkoxy, deuterated amino, deuterated silyl, deuterated siloxane, deuterated siloxy, and deuterated germyl, wherein adjacent R7 and/or R8 groups can be joined together to form a fused ring;
- x2 is an integer from 0-5;
- z is an integer from 0-3;
- and
- * indicates a point of attachment.