NOVELTY - A photoelectric conversion element (10) consists of an electroconductive support (1), a photoreceptor layer (2) formed from a semiconductor fine particle layer containing a pigment (21), a charge-transfer component layer (3), and a counter electrode (4). The semiconductor fine particles (22) locally have 2 or more types of metals or metallic compounds. The pigment is an organometallic compound.    USE - Photoelectric conversion element is used for photoelectrochemical cells (claimed) e.g. solar cells. Can also be used for photosensors and copiers.    ADVANTAGE - The photoelectric conversion element has excellent durability and conversion efficiency.    DETAILED DESCRIPTION - A photoelectric conversion element consists of an electroconductive support, a photoreceptor layer formed from a semiconductor fine particle layer containing a pigment, a charge-transfer component layer, and a counter electrode. The semiconductor fine particles locally have 2 or more types of metals or metallic compounds. The pigment is an organometallic compound of formula: Mz(LL1)m1(LL2)m2(X)m3.(CI)m4.    Mz=metal atom;    LL1=bidentate ligand of formula (I);    LL2=bidentate or tridentate ligand of formula (II);    X=monodentate or bidentate ligand chosen from acyloxy, acylthio, thioacyloxy, thioacylthio, acylamino-oxy, thiocarbamate, dithiocarbamate, thiocarbonate, dithiocarbonate, trithiocarbonate, acyl, thiocyanato, isothiocyanato, cyanato, isocyanato, cyano, alkylthio, arylthio, alkoxy and aryloxy, or monodentate or bidentate ligand chosen from thiourea, halo, carbonyl, dialkylketone, 1,3-diketone, carbonamido and thiocarbonamido;    CI=counter-ion which neutralizes electric charge of compound;    m1=1-3;    m2=0-2;    m3=0-3;    m4=0-3;    R101,R102=heterocyclyl, carboxy, sulfonic acid group, hydroxy, hydroxamic acid group, phosphoryl, or phosphonyl;    R103,R104=substituent;    R105,R106=alkyl, aryl or heterocyclyl;    L1,L2=conjugated chain consisting of ethenylenyl and/or ethynylenyl;    a1,a2,b1,b2=0-3;    d1,d2=0-5;    d3=0 or 1;    Z'a-Z'c=nonmetallic atom group which can form 5- or 6-membered ring;and    c=0 or 1.    (i) When b1 is 2 or more, R103 may mutually connect to form a ring; (ii) When b2 is 2 or more, R104 may mutually connect to form a ring; and (iii) When both b1 and b2 are 1 or more, R103+R104 may form ring.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the photoelectric conversion element.    Electroconductive support (1)    Photoreceptor layer (2)    Charge-transfer component layer (3)    Counter electrode (4)    Photoelectric conversion element (10)    Pigment (21)    Semiconductor fine particles (22)