TECHNOLOGY FOCUS - POLYMERS - Preferred Layer: Alternately, photoelectric converting layer contains block copolymer and electron donor. The copolymer has a block containing molecular structure having electron accepting property, and block comprising molecular structure having hydrogen bond formation ability. The photoelectric converting layer forms micro phase-separation structure. The micro phase-separation structure comprises phase containing molecule having electro-donativity, and phase containing molecule having electron-accepting property. Preferred Composition: The molar ratio of block copolymer, and electron donor or electron-accepting compound is 10000:1-1:10000. Preferred Properties: The molecular weight distribution (Mw/Mn) of block copolymer is 1.5 or less. Each domain size of the micro phase-separation structure is 1 microns or less. EXAMPLE - Hydroquinone (in g) (30) and potassium hydroxide (42) were dissolved in ethanol (450 ml). The solution was refluxed for one hour, and bromo octane (145) was added. Reflux was further performed for 24 hours. The product was extracted from reaction solution using ether. The product was washed and dried, to obtain 2,5-dioctyloxy toluene. The obtained compound (50) was dissolved in methylene chloride, and titanium tetrachloride (43) was dripped in the solution. The solution was stirred for 30 minutes, and dichloro methyl methyl ether (23) was added in the solution and stirred at room temperature for 24 hours. The reaction liquid was dripped in ice water and extracted with methylene chloride. The product was washed and recrystallized, to obtain 4-methyl-2,5-dioctyloxy benzaldehyde. The obtained compound (10) and aniline (2.8) were reacted at 60degreesC under reduced pressure. The obtained product was polymerized in N,N-dimethylformamide using potassium t-butoxide, to obtain omega-formyl-poly(2,5-dioctyloxy 1-1,4-phenylene vinylene). Formyl group of obtained polymer was reduced to benzyl alcohol, and esterified with bromo isobutyric acid bromide. The obtained methacrylic ester having benzoic acid structure was radical polymerized in tetrahydrofuran, using copper chloride and 1,1,4,7,10,10-hexamethyl triethylenetetramine as catalyst. A block copolymer having molecular weight distribution of 1.3 was obtained. 4-pyridine carboxy aldehyde, N-(3,6,9-tri oxa decyl)glycine and C60 were mixed and refluxed in toluene, to obtain electron-accepting compound. A photoelectric converting layer was produced using block copolymer and electron-accepting compound in molar ratio of 1:20. An optoelectric transducer was produced using the layer. The transducer had favorable photoelectric conversion efficiency.