Patent ID: 8367850

Claim:
A compound represented by structure of Formula (VI): wherein X is S or 0; wherein R 1 and R 2 are unfused substituents independently selected from the group consisting of C n H 2n+1 , OC n H 2n+1 , OAr 1 , N(C n H 2n+1 ) 2 , N(Ar 1 )(Ar 2 ), CH═CH—C n H 2n+1 , C≡CHC n H 2n+1 , Ar 1 , Ar 1 —Ar 2 , C n H 2n —Ar 1 , and no substitution, and wherein each of R 1 and R 2 may represent mono, di, tri, or tetra substitutions; wherein n is 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10; wherein Ar 1 and Ar 2 are independently selected from the group consisting of benzene, biphenyl, naphthalene, triphenylene, carbazole, and heteroaromatic analogs thereof; and wherein at least one of R 1 and R 2 includes a triphenylene group.