Patent ID: 8343381

Claim:
A hole transport composition comprising (i) a first hole transport polymer made from at least one first monomer selected from A1, A2, and A3 where: R is the same or different at each occurrence and is selected from the group consisting of H, D, alkyl, fluoroalkyl, aryl, fluoroaryl, alkoxy, aryloxy, NR″ 2 , R′, R′ is a crosslinkable group; R″ is independently selected from the group consisting of H, alkyl, fluoroalkyl, aryl, fluoroaryl, and R′; X can be the same or different at each occurrence and is a leaving group; Z is C, Si, or N; Q is the same or different at each occurrence and is (ZR″ n ) b ; a is an integer from 0 to 5; b is an integer from 0 to 20; c is an integer from 0 to 4; q is an integer from 0 to 7; and n is an integer from 1 to 2; wherein there is at least one crosslinkable group; and (ii) a second hole transport polymer having substantially no crosslinkable groups, wherein said second hole transport polymer is selected from the group consisting of a polymer having Formula (IX), and a polymer having Formula X: wherein: Ar 1 is the same or different at each occurrence and is selected from the group consisting of phenylene and naphthylene; Ar 2 is the same or different at each occurrence and is an aryl group; M is the same or different at each occurrence and is a conjugated moiety; T 1 and T 2 are independently the same or different at each occurrence and are conjugated moieties which are connected in a non-planar configuration; d is an integer from 1 to 6; e, f, and g are mole fractions such that e+f+g=1.0, with the proviso that f is not zero, and at least one of e and g is not zero, and when e is zero, M comprises at least two triarylamine units; and m is an integer greater than 5.