NOVELTY - An organic dye, is new.    USE - The organic dye is useful in a dye-sensitized photoelectric transformation element used in a dye-sensitized solar cell (DSSC) (claimed).    ADVANTAGE - The organic dye is cost-efficient, and has improved stability.    DETAILED DESCRIPTION - An organic dye having general formula (I), is new.    P=one of the following general formulas: (Ia): -(T)n-(P1)m-(P2)r-(P3)s-; (Ib): -(P1)m-(T)n-(P2)r-(P3)s-; (Ic): -(P1)m-(P2)r-(T)n-(P3)s-; (Id): -(P1)m-(P2)r-(P3)s-(T)n-;    T=a triple carbon-carbon bond having formula (II), or a double carbon-carbon bond having general formula (III) or (IV);    P1, P2 and P3=bivalent heteroaryl groups having the following general formulas (V), (VI), (VII), (VIII), (IX), (X), (XI), and (XII);    m, r and s=0-5, with the proviso that at least one of m, r and s is different from 0;    A=a group -COOH; a phosphonic group having formula -PO(OH)2 or -PO(OH);    R=linear or branched 1-20C alkyl groups; a carboxycyanovinylene group having general formula (XIII) or (XIV);    t=2-6; and    D=triarylamine group having the following general formulas of (XV), (XVI), (XVII), (XVIII), (XIX), (XX), (XXI), (XXII), (XXIII), (XXIV).    R1 and R2=H; or they are selected from linear or branched 1-20C alkyl groups, saturated or unsaturated, optionally containing heteroatoms, aryl groups optionally substituted, heteroaryl groups optionally substituted, cycloalkyl groups optionally substituted; and    n=0-5.    R3 and R4=H; or they represent a halo such as fluorine, chlorine or bromine; or they are selected from linear or branched 1-20C alkyl groups, saturated or unsaturated, optionally containing heteroatoms, aryl groups optionally substituted, heteroaryl groups optionally substituted, cycloalkyl groups optionally substituted, heterocyclic groups optionally substituted, trialkyl- or triaryl-silyl groups, dialkyl- or diaryl-amine groups, dialkyl- or diaryl phosphinic groups, linear or branched 1-20C alkoxyl groups, saturated or unsaturated, aryloxyl groups optionally substituted, thioalkoxyl or thioaryloxyl groups optionally substituted, cyano groups; or R3 and R4, in general formulas (V), (VIII), or (IX), can be optionally bound to each other so as to form, together with the other atoms to which they are bound, a cycle containing 1-12 carbon atoms, saturated, unsaturated, or aromatic, optionally substituted with linear or branched 1-20C alkyl groups, saturated or unsaturated, optionally containing heteroatoms, aryl groups optionally substituted, heteroaryl groups optionally substituted, cycloalkyl groups optionally substituted, heterocyclic groups optionally substituted, trialkyl- or triaryl-silyl groups, dialkyl- or diaryl-amine groups, dialkyl- or diaryl phosphinic groups, linear or branched 1-20C alkoxyl groups, saturated or unsaturated, aryloxyl groups optionally substituted, thioalkoxyl or thioaryloxyl groups optionally substituted, cyano groups, the cycle optionally containing heteroatoms such as oxygen, sulfur, nitrogen, silicon, phosphorus, selenium;    Z=heteroatom such as oxygen, sulfur, selenium, tellurium; or it is selected from groups having general formula X(R5) or from groups having general formula Y'(R6R7);    X=heteroatom such as nitrogen, phosphorus, arsenic, boron;    Y'=carbon, silicon, or germanium atom;    W'=heteroatom such as oxygen, sulfur, selenium, tellurium; or it is selected from groups having general formula Y(R6R7);    R5=H; or it is selected from linear or branched 1-20C alkyl groups, saturated or unsaturated, optionally containing heteroatoms, aryl groups optionally substituted, cycloalkyl groups optionally substituted; and    R6 and R7=same or different, are selected from linear or branched 1-20C alkyl groups, saturated or unsaturated, optionally containing heteroatoms, aryl groups optionally substituted, cycloalkyl groups optionally substituted, linear or branched 1-20C alkoxyl groups, saturated or unsaturated, aryloxyl groups optionally substituted, thioalkoxyl or thioaryloxyl groups optionally substituted.    R8, R9 and R10=H; or they represent a halo such as fluorine, chlorine or bromine; or they are selected from linear or branched 1-20C alkyl groups, saturated or unsaturated, optionally containing heteroatoms, aryl groups optionally substituted, heteroaryl groups optionally substituted, cycloalkyl groups optionally substituted, cyano groups, nitro groups.    R11=linear or branched 1-20C alkyl groups, saturated or unsaturated, optionally containing heteroatoms, linear or branched 1-20C alkoxyl groups, saturated or unsaturated, polyethyleneoxyl groups having formula R'-O-(-CH2-CH2-O)m-, aryl groups optionally substituted, heteroaryl groups optionally substituted, cycloalkyl groups optionally substituted, heterocyclic groups optionally substituted, trialkyl- or triaryl-silyl groups, dialkyl- or diaryl-amine groups, dialkyl- or diaryl phosphinic groups, linear or branched 1-20C alkoxyl groups, saturated or unsaturated, aryloxyl groups optionally substituted, thioalkoxyl or thioaryloxyl groups optionally substituted;    R'=H; or it is selected from linear or branched 1-20C alkyl groups; and    m=1-20.    INDEPENDENT CLAIMS are included for:    (1) a dye-sensitized photoelectric transformation element, which comprises at least one organic dye having general formula (I), the dye-sensitized photoelectric transformation element being supported on particles of a semiconductor oxide; and    (2) a dye-sensitized solar cell (DSSC) comprising the dye-sensitized photoelectric transformation element.