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Combinatorial synthesis and high throughput evaluation of thermoelectric power factor in Mg-Si-Ge ternary compounds

机译:Mg-Si-Ge三元化合物的热电功率因数的组合合成和高通量评估

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摘要

Discrete phase libraries of thermoelectric compounds, Mg_xSi_yGe_(1-y), were fabricated by a combinatorial pulsed laser deposition followed by annealing as a thin film form on an integrated ceramic substrate. In the substrate are embedded four probe electrical contacts to each sample, lead wires and pads to be accessed by needle probes. Resistivity and Seebeck coefficient were evaluated electrically, while temperature difference was locally given to each sample by a local heater also embedded in the substrate. The sample temperature (300-673 K) was controlled by a heating stage and temperature difference at the two contact points for each sample was evaluated by an infrared camera. The dependences of polarity and absolute values of Seebeck coefficient on the composition agree well with the data in literature.
机译:通过组合脉冲激光沉积,然后在集成陶瓷基板上以薄膜形式退火,制成了热电化合物的离散相库Mg_xSi_yGe_(1-y)。在基板中嵌入了四个探针电触点,分别与每个样品,引线和焊盘相连,针探针可以接触这些触点。对电阻率和塞贝克系数进行电学评估,同时通过还嵌入基板的局部加热器将温度差异局部赋予每个样品。通过加热台控制样品温度(300-673 K),并通过红外热像仪评估每个样品在两个接触点的温差。塞贝克系数的极性和绝对值对成分的依赖性与文献中的数据非常吻合。

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  • 来源
    《Applied Surface Science》 |2007年第3期|777-780|共4页
  • 作者单位

    Toyota Motor Corporation, Toyota city 471-8571, Japan Material Engineering Div. 3, Toyota Motor Corporation, 1200, Mishuku, Susono, Shizuoka 410-1193, Japan;

    Toyota Motor Corporation, Toyota city 471-8571, Japan;

    Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan;

    Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan;

    Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan;

    Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    combinatorial technology; thermoelectric; silicides; PLD;

    机译:组合技术热电硅化物;可编程逻辑器件;

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