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Abstract
La1–xCaxVO3 composition-spread film library was fabricated by combinatorial pulsed laser deposition and their thermoelectric properties were evaluated paralelly by the multi-channel probes of Seebeck coefficient and electric conductivity. Concurrent X-ray analysis verified the formation of solid soluted films in the full composition range (0 ≦ x ≦ 1) as judged from the linear variation of the lattice constants. The Seebeck coefficients of La1–xCaxVO3 changed from a large negative value to almost zero with the increase of x; due presumably to the variation of valence in vanadium ions.The power factor in this library was as high as 0.6 μW/cm K2, which was obtained at x = 0, i.e. pure LaVO3 grown at 800 °C.
