Thermoelectric generator

A method of fabricating a thermoelectric generator, the method comprising:

• embedding a structure in a supporting base body, the structure being constituted by a perovskite dielectric substrate containing Sr and Ti and having electric conductivity by being doped to n-type and an energy filter formed on a top surface of the perovskite dielectric substrate, the energy filter at least including a first perovskite dielectric film containing Sr and Ti and having electric conductivity by being doped to n-type, the first perovskite dielectric film having a conduction band at an energy level higher than a conduction band of the perovskite dielectric substrate, the structure being embedded in the supporting base body in a direction such that a bottom surface of the perovskite dielectric substrate in the structure faces a bottom surface of the supporting base body;
• and
• performing chemical mechanical polishing on the bottom surface of the perovskite dielectric substrate by polishing the bottom surface of the supporting base body together with the structure, to decrease a thickness of a perovskite stack constituted by the perovskite dielectric substrate and the energy filter to a thickness that is not greater than 0.25 mm.