NOVELTY - A photoelectric conversion element (10) consists of a photoreceptor layer (1) containing pigment (21) (I) and semiconductor fine particles (22), and charge transfer material layer (3) containing oxidation-reduction property electrolyte maintained in high molecular compound.    USE - Photoelectric conversion element for manufacturing photoelectrochemical cell (claimed), e.g. photosensor, copier and solar cell.    ADVANTAGE - The photoelectric conversion element has excellent durability and high photoelectric conversion efficiency.    DETAILED DESCRIPTION - A photoelectric conversion element consists of a photoreceptor layer containing pigment of formula: M(L1)m1(L2)m2(X)m3.C1 (I) and semiconductor fine particles, and charge transfer material layer containing oxidation-reduction property electrolyte maintained in high molecular compound.    M=metal atom;    L1=bidentate or tridentate ligand of formula (II);    L2=bidentate or tridentate ligand of formula (III);    X=monodentate or bidentate ligand coordinated through group chosen from acyloxy, acylthio, thio acyloxy, thio acylthio, acylamino oxy, thiocarbamate, dithiocarbamate, thio carbonate, dithio carbonate, trithio carbonate, acyl, thiocyanate, isothiocyanate, cyanate, isocyanate, cyano, alkylthio, arylthio, alkoxy and aryloxy, or monodentate or bidentate ligand containing halo, carbonyl, dialkyl ketone, 1,3-diketone, carbonamide, thio carbonamide, or thiourea;    m1=1-3;    m2=0-2;    m3=0-3;    C1=counter ion required to neutralize electric charge;    R11,R12=carboxy, sulfonic acid, hydroxy, hydroxamic acid, phosphoryl or phosphonyl;    R13,R14=substituent;    R15,R16=alkyl, aryl or heterocyclyl;    L11,L12=conjugation chain consisting of ethenylene or ethynylene;    a11,a12,b11,b12=0-3;    n11,n12=0-5;    n13=0 or 1;    Za-Zc=bidentate or tridentate ligand which can form 5- or 6-membered ring along with nonmetallic atom;and    c=0 or 1.    (i) When b11 is 2 or more, two or more R13 may combine to form ring; (ii) When b12 is 2 or more, two or more R14 may combine to form ring; and (iii) When both b11 and b12 are 1 or more, R13 and R14 combine to form ring. INDEPENDENT CLAIMS are included for the following:    (1) manufacture of the photoelectric conversion element, which involves impregnating acrylate monomer of formula: (H2C=C(-R41)-C(=O)-O)n41-A (IV) on photoreceptor layer containing pigment and semiconductor fine particles, polymerizing the monomer, forming high molecular compound layer, and permeating oxidation-reduction property electrolyte solution into the photoreceptor layer at 35-65 degrees C; and    (2) manufacture of the photoelectrochemical cell, which involves connecting an external circuit to the photoelectric conversion element.    R41=H or methyl;    A=residue united with ester group and carbon atom;and    n41=2-4.    DESCRIPTION OF DRAWING(S) - The drawing shows the sectional view of the photoelectric conversion element.    Photoreceptor layer (2)    Charge transport material layer (3)    Photoelectric conversion element (10)    Pigment (21)    Semiconductor fine particles (22)