二重管封入式温度勾配法を用いて作製したSnSe結晶の評価
二重管封入式温度勾配法を用いて作製したSnSe結晶の評価
カテゴリ: 論文誌(論文単位)
グループ名: 【A】基礎・材料・共通部門
発行日: 2018/03/01
タイトル(英語): Evaluation of SnSe Crystals Fabricated by Temperature Gradient Method with Double Tubes Seal
著者名: 辻岡 祐介(名古屋大学大学院工学研究科エネルギー理工学専攻),田橋 正浩(中部大学工学部),一野 祐亮(名古屋大学大学院工学研究科エネルギー理工学専攻),土屋 雄司(名古屋大学大学院工学研究科エネルギー理工学専攻),後藤 英雄(中部大学工学部),吉田 隆(名古屋大学大学院工学研究科エネルギー理工学専攻)
著者名(英語): Yusuke Tsujioka (Dept. of Energy Engineering and Science, Nagoya University), Masahiro Tahashi (Dept. of Electrical Engineering, Chubu University), Yusuke Ichino (Dept. of Energy Engineering and Science, Nagoya University), Yuji Tsuchiya (Dept. of Energy
キーワード: SnSe,熱電変換材料,温度勾配法 SnSe,thermoelectric material,temperature gradient method
要約(英語): Thermoelectric power generation can effectively utilize waste heat. ZT representing the performance of thermoelectric materials is required to have a value of 2 or more for the applications. SnSe with a high ZT of 2.6 has an anisotropy of thermoelectric properties due to the crystal structure. Since heat exists in various places, many SnSe single crystals are considered to be necessary. Here we attempted to grow single crystals of SnSe by a temperature gradient method as a simple technique. Also we prevented evaporation of SnSe with double tubes seal. We fabricated SnSe crystals at the cooling rates of 5, 10 and 50℃/hour using MgO (100) single crystalline substrate as seed crystal. The SnSe crystal fabricated at a cooling rate of 50℃/hour was shown to be polycrystal. On the other hand, the SnSe crystal fabricated at a slower cooling rate of 10℃/hour was shown to be pseudo-single crystal with stoichiometric composition. The temperature dependence of the electric conductivity and the Seebeck coefficient of the SnSe crystals was the same tendency as that of SnSe single crystal.
本誌: 電気学会論文誌A(基礎・材料・共通部門誌) Vol.138 No.3 (2018)
本誌掲載ページ: 99-103 p
原稿種別: 論文/日本語
電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/138/3/138_99/_article/-char/ja/
受取状況を読み込めませんでした
