NOVELTY - A photoelectric conversion element (10) has a photoreceptor layer (2), a solid positive hole transport layer (3), a porous semiconductor layer containing at least one dye (21), counter electrode (4) and electroconductive support (1).    USE - Photoelectric conversion element for photoelectrochemical cell (claimed) e.g. solar cell, photosensor and copier.    ADVANTAGE - The photoelectric conversion element provides photoelectrochemical cell having high conversion efficiency and durability.    DETAILED DESCRIPTION - A photoelectric conversion element has a photoreceptor layer, a solid positive hole transport layer, a porous semiconductor layer containing at least one dye, counter electrode and electroconductive support. The dye is of formula: Mz(LL1)m1(LL2)m2(X)m3.Cl.    Mz=metal atom;    LL1=bidentate or tridentate ligand of formula (II);    LL2=optionally substituted bidentate or tridentate ligand of formula (III);    m1,m3=0-3;    m2=0-2;    X=monodentate or bidentate ligand coordinated by group chosen from acyloxy, acylthio, thioacyloxy, thioacylthio, acylaminooxy, thiocarbamate, dithiocarbamate, thiocarbonate, dithiocarbonate, trithiocarbonate, cyanate, isothiocyanate, isocyanate, cyano, alkylthio, arylthio, alkoxy and aryloxy, or monodentate or bidentate ligand having halo, carbonyl, dialkylketone, 1,3-diketone, carbonamide, thio cabonamide or thiourea;    R101,R102=carboxy, sulfonic acid, hydroxy, hydroxamic acid, phosphoryl or phosphonyl;    R103,R104=substituent;    R105,R106=alkyl, aryl or heterocyclyl;    L1,L2=conjugated chain consisting of ethylene and ethynylene;    a1,a2,b1,b2=0-3;    d1,d2=1-5;    d3=0 or 1;    Za-Zc=nonmetallic atom group capable of forming 5- or 6-membered ring;and    c=0 or 1.    When b2 and b1 are one or more, R103 and R104 couple to form ring.    DESCRIPTION OF DRAWING(S) - The drawing shows the sectional view of photoelectric conversion element.    Electroconductive support (1)    Photoreceptor layer (2)    Positive hole transport layer (3)    Counter electrode (4)    Light reception electrode (5)    Photoelectric conversion element (10)    Sensitizing dye (21)    Semiconductor fine particles (22)    Photoelectrochemical cell (100)