NOVELTY - A photoelectric conversion element (10) has a photoreceptor layer (2) containing a composite sensitizing dye combining two or more pigments (21), and semiconductor fine particles (22), where the pigments comprise phthalocyanine compounds (I) and (II).    USE - Photoelectric conversion element for use in a photoelectrochemical cell (claimed) i.e. silicon system solar cell, photosensor and copying machine.    ADVANTAGE - The element has high photoelectric conversion efficiency and durability, and light weight. The element is inexpensive and eco-friendly.    DETAILED DESCRIPTION - A photoelectric conversion element has a photoreceptor layer containing a composite sensitizing dye combining two or more pigments, and semiconductor fine particles, where the pigments comprise phthalocyanine compounds of formulae (I) and (Mz(LL1)m1(LL2)m2(X)m3Cl) (II).    R1-R16=H or substituent of formula (-(X1)nA) optionally forms an adjacent substituent or ring;    X1=N, O or S, preferably S;    n=0 or 1;    A=aromatic group or heterocyclic group;    M1=two H atoms, metal atom or metal oxide;    Mz=metal atom, preferably ruthenium;    LL1=bidentate ligand of formula (III) or tridentate ligand;    LL2=bidentate ligand of formula (IV) or tridentate ligand or ligand of monodentate consisting of halo, carbonyl, dialkyl ketone, 1,3-diketone, carbonamide, thio carbonamide or thiourea, where monodentate coordinates X by the group chosen from acyloxy, acylthio, thio acyloxy, thio acylthio, acylamino oxy, thiocarbamate, dithiocarbamate, thiocarbonate, dithiocarbonate, trithiocarbonate, acyl, thiocyanate, isothiocyanate, cyanate, isocyanate, cyano, alkylthio, arylthio, alkoxy or aryloxy;    m1,m2=0-3;    m3=0-2;    Cl=counter-ion;    R101,R102=carboxyl, sulfonic acid, hydroxyl, hydroxamic acid, phosphoryl or phosphonyl;    R103,R104=substituent;    R105,R106=aryl or heterocyclic group;    d1,d2,d3=greater than or equal to 0;    L1,L2=optionally substituted ethenylene;    L1+L2=dipyridine ring;    a1,a2, b1,b2=0-3;    R103+R103=ring;    R104+R104=ring;    n=0 or 1, preferably 0;    Za,Zb,Zc=non-metallic atom group, which can form a 5- or 6-membered ring, or optionally having an acidic group;and    c=0 or 1.    An INDEPENDENT CLAIM is also included for a composition for a photoelectric conversion element, comprising the pigment comprising phthalocyanine compounds (I) and (II) dissolved in an organic solvent.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of a photoelectric conversion element.    Electroconductive support (1)    Photoreceptor layer (2)    Charge-transfer body layer (3)    Counter electrode (4)    Light reception electrode (5)    Circuit (6)    Photoelectric conversion element (10)    Pigments (21)    Semiconductor fine particles (22)    Photoelectrochemical cell (100)