Hole transport composition

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:
• Ar1 is the same or different at each occurrence and is selected from the group consisting of phenylene and naphthylene;
• Ar2 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;
• T1 and T2 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.