Fusing porphyrins with polycyclic aromatic hydrocarbons and heterocycles for optoelectronic applications

A photosensitive device comprising:

• a first electrode;
• a second electrode;
• and
• a photoactive region provided between the first electrode and the second electrode, wherein the photoactive region comprising:
• a donor material;
• and
• an acceptor material, wherein donor material is a compound comprising a non-activated porphyrin fused with one or more non-activated heterocyclic rings, said compound having a formula selected from the group consisting of:
• wherein M is any element selected from the group consisting of Mg, Ca, Sr, B, Sc, Y, La, Ce, Ti, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Hg, Al, Ga, In, Tl, Si, Ge, Sn, Pb, P, As, Sb, Bi, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Th, and U;
• wherein R1-R14 are independently selected from the group consisting of hydrogen, alkyl, fluoroalkyl, hydroxyl, alkoxy, halo, chalcogens, mercapto group, amino, cyano, alkenyl, alkynyl, aryl, heteroaryl, and combination thereof;
• wherein R15 and R16 are H;
• wherein X is O, S, and Se;
• and
• wherein adjacent substituents R5 and R6 in structures A, C, and D, adjacent substituents R6 and R7 in structures A, C, D, and F, and adjacent substituents R13 and R14 in structures C and D, optionally form fused rings, wherein the fused rings are aromatic, unsaturated, or combinations of both aromatic and unsaturated rings, including four, five, six, seven, eight, or nine-membered rings, wherein the fused rings can include one or more heteroatoms independently selected from the group consisting of O, S, Se, Te, N, P, As, Si, Ge, and B.