TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Dye: A photoelectric conversion sensitizing dye comprises the optical functional material and other sensitizing dye. The photoelectric conversion sensitizing dye and an inorganic semiconductor porous component are connected to obtain a photoelectric-conversion material. The photoelectric conversion material is laminated on a transparent electrode to obtain a photoelectric conversion electrode. The photoelectric conversion electrode, an electrolyte layer and an electroconductive counter electrode are combined to obtain a photoelectric conversion cell.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation: No general preparation given. Preferred Definitions:    X = substituent containing squaric acid, carboxylic acid group, phosphonic acid group, sulfonic acid group, phosphinic acid group, hydroxyl group, hydroxamic acid, or boron acidic radical; and    A1,A2 = alkylene, alkenylene, arylene, heterocyclic, or hetero atom, and combines nitrogen atom, which adjoins CR4, and X by conjugated system.    SPECIFIC COMPOUNDS - 407 examples for optical functional material of formula (1), such as (2Z)-2-isocyano-3-(4-((4-methylphenyl)amino)phenyl)acrylic acid-substituted (1,2-diphenylvinyl)benzene of formula (9), N-(4-((1Z)-2-isocyanoprop-1-enyl)phenyl)-N-(4-methylphenyl)amine-substituted (1,2-diphenylvinyl)benzene of formula (10), n-(4-((E)-1,2-diphenylvinyl)phenyl)-N,N-dimethylamine-substituted (2E)-3-(4-((4-butylphenyl)amino)phenyl)-2-cyanoacrylic acid of formula (406), 1-(2,2-diphenylvinyl)naphthalene-substituted (2E)-3-(4-((4-butylphenyl)amino)phenyl)-2-cyanoacrylic acid of formula (400) and 2-(2,2-diphenylvinyl)thiophene-substituted (2E)-3-(4-((4-butylphenyl)amino)phenyl)-2-cyanoacrylic acid of formula (402) are disclosed.    EXAMPLE - Aldehyde compound (formula (III)) (in g) (0.4) and cyano ethyl acetate (0.1) were dissolved in tetrahydrofuran (2 ml) and ethanol (5 ml). 3 drops of piperidine were added and stirred for 2 hours. The depositing solid was filter-separated and washed with alcohol to obtain ethanol acetate compound (formula (IV)) (0.4) with yield of 89%. The obtained compound (IV) (0.3) was processed and hydrolyzed in tetrahydrofuran and sodium hydroxide aqueous solution to obtain sensitizing dye (formula (9)) (90 mg) with yield of 30%. The obtained sensitizing dye was used for forming photoelectric conversion electrode of photoelectric conversion cell. The obtained photoelectric conversion cell had high photoelectric conversion efficiency and durability.