SPS 法により作製されたBa<sub>8</sub>Au<sub>x</sub>Si<sub>46-x </sub>クラス レートにおける新たな熱—電力変換効果の検証<sub> </sub>
書誌事項
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- Ba<sub>8</sub>Au<sub>x</sub>Si<sub>46-x</sub> Clathrate Synthesized by SPS for a Novel Heat-Electric Conversion Effect
- SPS法により作製されたBa₈Au[x]Si₄₆₋xクラスレートにおける新たな熱-電力変換効果の検証
- SPSホウ ニ ヨリ サクセイ サレタ Ba ₈ Au[x]Si ₄ ₆ ₋ xクラスレート ニ オケル アラタ ナ ネツ-デンリョク ヘンカン コウカ ノ ケンショウ
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説明
<p>Preciously, we suggested a novel heat-electric power conversion effect without temperature gradient. In this study, we purposed synthesizing sample for a novel effect with Spark Plasma Sintering (SPS). This effect needs joining n-type, intrinsic and p-type semiconductors. In addition, intrinsic semiconductor must have narrower band gap than n- and p-type semiconductors. Therefore, we payed attention to Ba8AuxSi46-x for satisfying these requirements. Ba8AuxSi46-x is changed its electrical properties by Au contents. Furthermore, this materials show that n- and p-type semiconductors show wider band gap than intrinsic semiconductor. In this study, we synthesized two layers sample of n-type and p-type Ba8AuxSi46-x with SPS. Sintering process was expected promoting Au diffusing from p-type to n-type, and form a Au gradient part in n/p interface. According to results of WDX, chemical composition gradient was observed in n/p interface. This result showed that sample synthesized by SPS satisfied two requirements. Therefore, the sample was heated under uniform temperature and generated voltage showed 2.5 mV at 500°C. These results suggested SPS was suitable method for synthesizing samples of a novel effect. </p>
収録刊行物
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- 傾斜機能材料論文集
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傾斜機能材料論文集 31 (0), 24-28, 2017
傾斜機能材料研究会