TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Material: The inorganic porous material comprises inorganic oxide.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation: No general preparation given.Preferred Composition: The sensitizing dye further contains photosensitization dye. Preferred Definitions:    X=phenylene group, naphthylene group, anthrylene group, phenanthrylene group, biphenylene group or terphenylene group optionally having substituent, preferably phenylene group substituted with one or more fluorine atoms;    R3=carboxyl group, phosphoric acid group or sulfonic acid group, preferably carboxyl group;    R1,R2,R4,R5=H, optionally substituted aliphatic hydrocarbon, aromatic hydrocarbon group, aromatic heterocyclic group, halogen atom, cyano group, isocyano group, thiocyanate group, isothiocyanate group, nitro group, hydroxyl group, mercapto group, amino group, amide group or group of formula: -(A1)o-B'-(A2)p-R6, preferably R4 is electron attracting group such as cyano group, ester group, amide group or perfluoro alkyl group;    A1,A2=O, NH or S;    B'=carbonyl, thiocarbonyl, sulfinyl or sulfonyl;    o,p=0 or 1;    R6=H, optionally substituted univalent aliphatic hydrocarbon, aromatic hydrocarbon group, aromatic heterocyclic group, halogen atom, cyano group, isocyano group, thiocyanate group, isothiocyanate group, nitro group, hydroxyl group, mercapto group, amino group or amide group;and    Y',Z=2,5-thienylene group or 2,5-thieno thienylene group optionally having substituent.    SPECIFIC COMPOUNDS - 82 specific heterocyclic derivatives are disclosed, such as compound of formula (1,2).    EXAMPLE - Aldehyde group-containing thiophene compound of formula (A-4) (in g) (6.2) and cyanoacetic acid tertiary butyl (3.3) were added to flask. Morpholine (1.6) was added to toluene (600 mL), and added to flask to terminate reaction. The reaction product was cooled to room temperature, reaction material was concentrated, and low boiling point solvent was distilled off. Thiophene derivative of formula (A-5) (7.6) was obtained. The obtained compound (A-5) (2.1) and acetic acid (57 mL) were added to a flask. Hydrobromic acid (8) was added and stirred at room temperature. After completing the reaction, ion exchange water (600 mL) was added and extraction was carried out. The reaction product was washed and solvent was distilled off. Amino group-containing heterocyclic derivative of formula (A) (1.6) was obtained. Sensitizing dye was manufactured using the heterocyclic derivative. A photoelectric conversion battery having photoelectric conversion electrode obtained using the sensitizing dye was manufactured with excellent photoelectric conversion efficiency.