TECHNOLOGY FOCUS - ELECTRONICS - Preferred Component: The organic photoelectric transducer has a pair of transparent or semi-transparent electrode, an organic layer (a1) containing composition or electron-accepting compound between the electrodes and an organic layer (a2) containing electron donor or composition adjoined and provided in the organic layer (a1).    TECHNOLOGY FOCUS - POLYMERS - Preferred Compound: The high molecular compound (a) further has a thiophene-containing repeating unit of formula (3), an arylene-containing repeating unit of formula: -(Ar')- (4), a thiophene-containing repeating unit of formula (5) and thiadiazole-containing repeating unit of formula (7). The high molecular compound (b) has an arylene-containing repeating unit (4). The thiophene-containing repeating unit (5) is preferably of formula (6). The thiophene-containing repeating unit (2) is preferably of formula (8). The high molecular compound (a) has block with thiophene-containing repeating units (9, 10 or 11). The electron-accepting compound is fullerene derivative.R5-R36=R1;q=2-7, preferably 3-5;andAr'=group of formula (i or ii), group of formula (iii), or bivalent aromatic-amine residue.Preferred Composition: The composition has high molecular compound (a) with a block having benzene-containing repeating unit (1). The composition further contains an electron-accepting compound, an electron donor and a solvent. Preferred Property: The weight ratio of high molecular compound (a) is 1-99. EXAMPLE - Methyltrioctyl ammonium chloride (in g) (0.65), 2-(7-(1,3,2-dioxaborolan-2-yl)-9,9-dioctyl-9H-fluoren-2-yl)-1,3,2-dioxaborolane (1.5779), 5,5'-dibromo-2,2'-bithiophene (1.1454), toluene (35 ml), aqueous solution (9.5 ml) of sodium carbonate, palladium acetate (1.6 mg) and tris o-methoxyphenyl phosphine (6.7 mg) were mixed and cooled. 2-(7-(1,3,2-Dioxaborolan-2-yl)-9,9-dioctyl-9H-fluoren-2-yl)-1,3,2-dioxaborolane (1.0877), 4,7-bis(5-bromo-4-hexylthiophen-2-yl)-1,3,3a,7a-tetrahydro-2,1,3-benzothiadiazole (0.9399), toluene (15 ml), aqueous solution (6.8 ml) of sodium carbonate, palladium acetate (1.3 mg) and tris o-methoxyphenyl phosphine (4.7 mg) were mixed with the mixture at 105 degrees C for 3 hours. To the resulting mixture, toluene (450 ml), palladium acetate (2.3 mg), tris o-methoxyphenyl phosphine (8.8 mg), phenyl borate (0.305), aqueous solution of sodium N,N-diethyl dithiocarbamate (3.1) in water (30 m1) and methanol (2500 ml) were added, mixed, filtrated and reduced-pressure-dried to obtain high molecular compound (m1) (3) having thiophene-containing repeating unit of formula (I) and a block having benzothiadiazole-containing repeating unit of formula (II), and has weight average molecular weight of 257000, and number average molecular weight of 87000. 2-(7-(1,3,2-Dioxaborolan-2-yl)-9,9-dioctyl-9H-fluoren-2-yl)-1,3,2-dioxaborolane (7.928), 2,5-bis(5-(5-bromothiophen-2-yl)thiophen-2-yl)-3,4-dihexylthiophene (13), methyltrioctyl ammonium chloride (4.979), toluene (405 ml), dichloro bis(triphenyl phosphine)palladium (II) (0.02), 2 mol/L-aqueous solution (42.2 ml) of sodium carbonate, phenyl boronate (2.6), toluene (1.8 ml), aqueous solution of toluene (700 ml) and sodium diethyl dithiocarbamate trihydrate (200 ml) and ion-exchange water (300 ml) were mixed to obtain penta thienyl-fluorene copolymer (12.21) having number average molecular weight of 5.4x 104 and weight average molecular weight of 1.1x 105. High molecular compound (10 mg) and penta thienyl-fluorene copolymer (10 mg) were mixed to obtain composition having weight ratio of high molecular compound and penta thienyl-fluorene copolymer of 50:50.