NOVELTY - A metal complex consists of a conjugated compound having a molecular weight of 200 or more, adsorbed on a metal nanostructure having an aspect ratio of 1.5 or more.    USE - Metal complex is used in compositions, in laminated structures, and for manufacturing transparent cathode materials used in light-emitting elements, photoelectric conversion elements (all claimed) e.g. solar batteries, organic transistors, touch panels, and planar LCDs. Can also be used for wiring materials, conductive paints, adhesive agents, integrated circuits, sensors, electromagnetic wave shielding films, antennas, antistatic agents, fibers, packaging materials, antimicrobial agents, deodorizers, heat generating components, heat radiation components, and medical materials.    ADVANTAGE - The metal complex enables manufacture of electrodes having excellent transparency and electroconductivity.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) composition containing the metal complex and the conjugated compound;    (2) light-emitting element having a light-emitting layer provided between an anode and a cathode containing the metal complex;    (3) photoelectric conversion element having a charge-separation layer provided between an anode and a cathode containing the metal complex;    (4) laminated structure having a layer which contains the metal complex, formed on a substrate;    (5) conjugated compound having repeating units of formulae (I and/or II) and/or repeating units of formulae: -(-Ar3-(-Y'-)l-)- and/or -(-Ar4-N(-R3)-Ar5-)-; and    (6) manufacture of transparent negative electrode, which involves applying a dispersion liquid of an electroconductive material having an aspect ratio of 1.5 or more.    Ar2=aromatic group of valence o+2;    R2=direct bond or (m2+1)-valent group;    X2=group containing heteroatom;    m2,o=1 or more;    Ar3-Ar5=bivalent aromatic group;    Y'=direct bond, optionally substituted ethenylene, ethynylene, or optionally substituted azomethine;    l=0-2;and    R3=optionally substituted hydrocarbyl.