NOVELTY - A pigment (I) or (II) (21), is new.    USE - New pigment is used for photoelectric conversion element for photoelectrochemical cell (all claimed) e.g. photosensor, copier and solar cell.    ADVANTAGE - The photoelectrochemical cell containing the pigment has excellent photoelectric conversion efficiency and durability.    DETAILED DESCRIPTION - A pigment of formula: A-((L')o-B')l (I) or (A-(L')o)l-B' (II), is new.    A=group derived from pigment of formula: Mz(LL1)m1(LL2)m2(X)m3.C' (x) or pigment of formula (i), or chromophore having absorption maximum of 380-650 nm;    B'=chromophore having absorption maximum of 650-1200 nm, or group derived from pigment having acidic group;    l=1 or more;    L'=optionally substituted bivalent coupling group;    o,d3,c,f=0 or 1;    Mz=metal atom;    LL1=bidentate or tridentate ligand of formula (ii);    LL2=bidentate or tridentate ligand of formula (iii);    X=monodentate or bidentate ligand coordinated by 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=0-3;    m2,a1,a2,b1,b2=0-3;    m3=0-2;    C'=counter ion required to neutralize electric charge in pigment (x);    R101,R102=carboxy, sulfonic acid group, hydroxy, hydroxamic acid, phosphoryl, or phosphonyl;    R103,R104=substituent;    R105,R106=aryl or heterocyclyl;    d1,d2=0 or more;    L1,L2=conjugation chain having ethenylene and/or ethynylene;    or R103+R103=ring (when b1 is 2 or more);    or R104+R104=ring (when b2 is 2 or more);    or R104+R103=ring (when both b1 and b2 are 1 or more);    Za-Zc=nonmetallic atom group which forms 5- or 6-membered ring and optionally having acidic group;    X=nonmetallic atom group required to form nitrogen-containing ring by bonding with benzene ring;    r=0, or 1-4;    e1=0 or 1 or more integer;    R15,R16=H, aliphatic group, aromatic group, or heterocyclic group bonded with carbon atom;    D'=substituent optionally having acidic group;and    Y'=aliphatic group, aromatic group or heterocyclic group.    At least one of m1 and m2 is 1 or more. An INDEPENDENT CLAIM is included for photoelectric conversion element (10) contains pigment (I) or (II).    DESCRIPTION OF DRAWING(S) - The drawings show the sectional view of the photoelectric conversion element.    Electroconductive support (1)    Photoelectric conversion element (10)    Pigment (21)    Semiconductor fine particles (22)    Photoelectrochemical cell (100)