NOVELTY - An amino group-containing heterocyclic derivative (1) is new.    USE - For sensitizing dye used for photoelectric conversion material used for photoelectric conversion electrode of photoelectric conversion battery (all claimed), such as solar cell, and non-linear optic material.    ADVANTAGE - The sensitizing dye containing amino group-containing heterocyclic derivative has high photoelectric conversion efficiency.    DETAILED DESCRIPTION - A amino group-containing heterocyclic derivative of formula (1) is new.    R1,R2,R4,R5 = hydrogen atom or univalent organic residue optionally having substituent, and R1 and R2 optionally combines together to form a ring with X;    R3 = anchor group capable of connecting with inorganic porous material having semiconductor characteristics;    X = optionally substituted bivalent aromatic hydrocarbon group and/or aromatic hydrocarbons having valence of two or more, and two or more rings are optionally condensed;    Y' = optionally substituted bivalent aromatic heterocyclic group having sulfur atom, and two or more rings are optionally condensed;    Z = bivalent aromatic heterocyclic group, bivalent aromatic hydrocarbon group and/or bivalent unsaturated hydrocarbon group optionally having substituent, and forms pi conjugated system from X to group (R3), and two or more rings are optionally condensed;    m = 1-3; and    n = 0 or 1.    Double bond in derivative (1) forms cis-trans isomer.    INDEPENDENT CLAIMS are also included for:    (1) sensitizing dye, which contains heterocyclic derivative (1) containing amino group in terminal;    (2) photoelectric conversion material, which is obtained by connecting the sensitizing dye and inorganic porous material;    (3) photoelectric conversion electrode, which is obtained by laminating the photoelectric conversion material on a transparent electrode; and    (4) photoelectric conversion battery, which has photoelectric conversion electrode, an electrolyte layer and an electroconductive counter electrode.    DESCRIPTION OF DRAWING(S) - The figure shows the photoelectric conversion cell.    Glass substrate (1)    Transparent electrode layer (2)    Platinum electrode layer (3)    Titanium oxide porous layer (4)    Electrolyte liquid (5)