NOVELTY - An optoelectric transducer (1) has photosensitive layer (4), charge transferring layer (9) and counter-electrode electroconductive layer (8), provided on electroconductive layer (7). Layer (9) contains specific nitrogen-containing organic charge-transfer agent, thiocyanate and imidazolium salt. Layer (4) contains semiconductor nanoparticles (5) which absorb pigment (6), and components of layer (9) are filled between nanoparticles.    USE - For solar cell (claimed).    ADVANTAGE - The optoelectric transducer has excellent durability, photoelectric conversion efficiency and electric-power generation efficiency. The solar cell formed using the optoelectric transducer, has excellent durability and photoelectric conversion efficiency with reduced property deterioration during warping.    DETAILED DESCRIPTION - An optoelectric transducer has a photosensitive layer, a charge transferring layer and a counter-electrode electroconductive layer, sequentially provided on an electroconductive layer. The charge transferring layer contains a nitrogen-containing organic charge-transfer agent of formula R1N(R2)AR1 (I), an imidazolium salt of formula (II) and a thiocyanate of formula: MSCN. The photosensitive layer contains semiconductor nanoparticles which absorb pigment, and charge transferring layer components are filled between the nanoparticles.    R1, R2 = alkyl or aryl group, at least one of R1 and R2 is aryl group;    Ar1 = aryl group;    M = alkali metal or ammonium;    R1-R3 = group containing H or 1-10C alkyl, propenyl and benzyl group; and    X- = anion chosen from CF3SO2-, (CF3SO2)2N-, (CF3SO2)N-(CF3CO), I-, BF4-, PF6-, CF3COO-, CF3CF2CF2CF2SO3-, (HF)2.3F- and (NC)2N-.    An INDEPENDENT CLAIM is included for solar cell, which contains the optoelectric transducer.    DESCRIPTION OF DRAWING(S) - The figure shows the fragmentary sectional view of the optoelectric transducer. (Drawing includes non-English language text).    optoelectric transducer (1)    photosensitive layer (4)    semiconductor nanoparticles (5)    pigment (6)    electroconductive layer (7)    counter-electrode electroconductive layer (8)    charge transferring layer (9)