NOVELTY - An organic photoelectric conversion element (10) is obtained by laminating photoelectric conversion layer (14) and an electric charge transport layer (13,15) between primary electrode (12) and secondary electrode (16). The photoelectric conversion layer contains two or more of organic-semiconductor material containing porphyrin-type derivatives (I)-(III).    USE - Organic photoelectric conversion element is used for organic solar cell.    ADVANTAGE - The organic photoelectric conversion element enables to provide organic solar cell having high energy conversion efficiency, and can be manufactured economically.    DETAILED DESCRIPTION - An organic photoelectric conversion element is obtained by laminating photoelectric conversion layer and an electric charge transport layer between primary electrode and secondary electrode. The photoelectric conversion layer contains two or more of organic-semiconductor material containing porphyrin derivatives of formulae (I)-(III).    Z 1-Z 12=N or C(Y' 1)-C(Y' 12);    Y' 1,Y' 12,R 1-R 12,R' 1-R' 12=H, halo, substituted aromatic ring or 0-20C non-aromatic ring substituent optionally having substituent;    M 1-M 3=2H or cation having valency of more than 2;and    R 1+R' 1,R 2+R' 2,R 3+R' 3,R 4+R' 4,R 5+R' 5,R 6+R' 6,R 7+R' 7,R 8+R' 8,R 9+R' 9,R 10+R' 10,R 11+R' 11,R 12+R' 12=ring optionally having substituent.    when cation has valency of more than 3, then M 1-M 3is 20C or less counter anion. An INDEPENDENT CLAIM is included for manufacture of organic photoelectric conversion element, which involves applying soluble precursor of organic-semiconductor material, drying, and performing chemical alteration process by heating continuously.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of organic photoelectric conversion element.    Organic photoelectric conversion element (10)    Substrate (11)    Primary electrode (12)    Electric charge transport layers (13,15)    Photoelectric conversion layer (14)    Secondary electrode (16)