NOVELTY - The thermoelectric component has p-type thermoelectric conversion material (I) and n-type thermoelectric conversion material (J) containing specific complex oxide.    USE - For thermoelectric conversion module (claimed) for converting heat of automobile engine and incinerator to electric power for mobile telephone and notebook personal computer and used in thermal power-nuclear power station, fuel cell, and co-generation system.    ADVANTAGE - The thermoelectric component has excellent conversion efficiency and provides thermoelectric conversion module with excellent thermal stability, chemical durability and high power density.    DETAILED DESCRIPTION - The thermoelectric component has p-type thermoelectric conversion material containing complex oxide of formula: CaaA1bCocA2dOe, and/or BifPbgM1hCoiM2jOk, and n-type thermoelectric conversion material containing complex oxide of formula: LnmR1nNipR2qOr and/or (LnsR3t)2NiuR4vOw.    A1=sodium, potassium, lithium, titanium, vanadium, chromium, manganese, iron, nickel, copper, zinc, lead, strontium, barium, aluminum, bismuth, yttrium and/or lanthanoid series element;    A2, R2, R4 and M2=titanium, vanadium, chromium, manganese, iron, nickel, copper, molybdenum, tungsten, niobium and/or tantalum;    a=2.2-3.6;    b=0-0.8;    c=2-4.5;    d=0-2;    e, k=8-10;    M1= sodium, potassium, lithium, titanium, vanadium, chromium, manganese, iron, nickel, copper, zinc, lead, calcium, strontium, barium, aluminum, yttrium and/or lanthanoid series element;    f=1.8-2.2;    g=0-0.4;    h=1.8-2.2;    i=1.6-2.2;    j=0-0.5;    Ln=element(s) of lanthanoid series;    R1 and R3=sodium, potassium, lithium, titanium, vanadium, chromium, manganese, iron, nickel, copper, zinc, lead, calcium, strontium, barium, aluminum, bismuth and/or yttrium;    m=0.5-1.7;    n=0-0.5;    p=0.5-1.5;    q=0-0.5;    r=2.7-3.3;    s, u=0.5-1.2;    t, v=0-0.5;and    w=3.6-4.4.    The p-type thermoelectric conversion material preferably contains complex oxide of formula: CaaA1bCo4Oe. The n-type thermoelectric conversion material contains complex oxide of formula: LaxR5yNiOz, where R5 is sodium, potassium, lithium, titanium, vanadium, chromium, manganese, iron, nickel, copper, zinc, lead, calcium, strontium, barium, aluminum, bismuth, yttrium and/or lanthanide series element, x is 0.5-1.2, y is 0.5 and z is 2.7-3.3. INDEPENDENT CLAIMS are also included for the following:    (1) thermoelectric conversion module; and    (2) thermoelectric conversion method.    DESCRIPTION OF DRAWING(S) - The figure shows a heat converter formed by adhering thermoelectric conversion material on an electroconductive material using a sealant. (Drawing includes non-English language text).    ceramic substrate (C)    bonding material (E)    p-type thermoelectric conversion material (I)    n-type thermoelectric conversion material (J)    conductive ceramic material (L)