Combinatorial Synthesis and Characterization of Thermoelectric Composition-Spread (La_1-xCa_x)VO₃ (0≤x≤1) Films

Abstract:

La1-xCaxVO3 composition-spread films were fabricated by combinatorial pulsed laser deposition and their thermoelectric properties were evaluated paralelly by the multi-channel thermoelectric measurement system. Concurrent X-ray analysis verified the formation of solid solution films in the full composition range (0≤x≤1) as judged from the linear variation of the lattice constants. The power factor of 0.6 µW/cm K2 was achieved in LaVO3 film at 800°C.Large thermoelectric properties in vanadium oxide system can be expected with the change of vanadium ion valence from 3+ to 2+.

• Periodical: Advanced Materials Research (Volumes 118-120)
• Pages: 775-779
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.118-120.775
• Online since: June 2010
• Authors: Qun Jiao Wang, Min Xu, Yi Bin Zhang
• Keywords: Combinatorial Pulsed Laser Deposition, Composition-Spread Film, Seebeck Coefficient, Thermoelectric, Vanadium Oxide

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