NOVELTY - An organic photosensitive optoelectronic device comprises at least one nonplanar porphyrin (I).    USE - As an organic photosensitive optoelectronic device selected from organic photosensors, chemical sensors or biological sensors, photovoltaic cell, photoconductor cell, photodetector (claimed).    ADVANTAGE - The use of metallo tetraphenyl benzo porphyrin yields solar cells with improved performance compared to a standard organic solar cell. It appears that energy losses during charge separation at the donor-acceptor interface are reduced delivering a higher open circuit voltage for lower interface gap energy. Organic photosensitive optoelectronic devices comprising a wide range of porphyrin compounds other than metallo tetraphenyl benzo porphyrin can also achieve better performance than standard organic photosensitive optoelectronic devices. The metallo tetraphenyl benzo porphyrin shows good absorption spectra for solar cell application.    DETAILED DESCRIPTION - An organic photosensitive optoelectronic device comprises at least one nonplanar porphyrin of formula (I).    M'=Sc, Y, La, Ti, Zr, Hf, V, 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, S, Se, Te, Po, Cl, Br, I, At, lanthanides, actinides or 2H;    R'=Cl, Br, I and a chemical group comprising a valence atom attached to the meso carbon atom of the porphyrin, where the valence atom is selected from B, C, N, O, Si, P, S, Ge, As, Se, In, Sn, Sb, Te, Tl, Pb, Bi or Po;    R=Cl, Br, I or At atom, and a chemical group comprising a valence atom attached to a beta carbon atom of a pyrrole ring, where the valence atom is selected from B, C, N, O, Si, P, S, Ge, As, Se, In, Sn, Sb, Te, Tl, Pb, Bi and Po;or    R+R=carbocyclic group or heterocyclic ring (A1) (formed by same beta carbon atoms of the pyrrole ring).    An INDEPENDENT CLAIM is included for fabricating the organic photosensitive device involving providing a donor material and an acceptor material, where the donor material and/or the acceptor material comprises at least one nonplanar porphyrin (I); and making the organic photosensitive optoelectronic device comprising putting the donor material in contact with the acceptor material, where when both the donor material and acceptor material comprise at least one nonplanar porphyrin (I), the at least one nonplanar porphyrin in the donor material is different from the at least one nonplanar porphyrin in the acceptor material.