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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 118-120Combinatorial Pulsed Laser Deposition and...

Combinatorial Pulsed Laser Deposition and Thermoelectricity of (Ca_1-xA_x)₃Co₄O₉ (A: Sr, Ba) Composition-Spread Films

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Abstract:

(Ca1-xAx)3Co4O9 (A: Sr, Ba) composition-spread films were fabricated successfully on TiO2 (100) substrate by combinatorial pulsed laser deposition (CPLD), and their thermoelectric (TE) properties and structure were evaluated by the multi-channel thermoelectric measurement system and concurrent X-ray analysis respectively. The largest power factor in (Ca1-xSrx)3Co4O9 film library was achieved as 1.67µW/cmK2. The influence of substitution on TE properties was investigated by doping Sr2+ and Ba2+ ions into Ca3Co4O9. However, there was little change of Seebeck coefficient in the range of 0≤x≤0.1 for (Ca1-xAx)3Co4O9 (A: Sr, Ba) films, which suggested that the substitution ions with smaller size were potential candidates for good TE properties.

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Periodical:

Advanced Materials Research (Volumes 118-120)

Pages:

780-784

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.118-120.780

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Online since:

June 2010

Authors:

Qun Jiao Wang, Min Xu, Yi Bin Zhang

Keywords:

Ca₃Co₄O₉, Combinatorial Pulsed Laser Deposition, Composition-Spread Film, Substitution, Thermoelectric

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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