CS2雰囲気下におけるTiS2ターゲットからの硫化チタン薄膜のパルスレーザ蒸着とその熱電特性

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タイトル別名
  • Pulsed Laser Deposition of Titanium Sulfide Films from TiS2 Target under CS2 Pressure and their Thermoelectric Properties
  • CS2 フンイキカ ニ オケル TiS2 ターゲット カラノ リュウカ チタン ハクマク ノ パルス レーザ ジョウチャク ト ソノ ネツデン トクセイ

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説明

The pulsed laser deposition of titanium sulfide films was investigated in order to develop new thermoelectric materials. The rutile-type TiO2 powder was first sulfurized with carbon disulfide (CS2) gas. After the sulfurization at 1023 K for 14 h, the resultant powder consisted entirely of the CdI2-type TiS2 phase. The TiS2 target was fabricated by pressing the TiS2 powder under a uniaxial pressure of 20 MPa. The films were prepared on fused quartz substrates by the pulsed laser deposition from the TiS2 target under CS2 pressure. The effects of the CS2 pressure and substrate temperature on the microstructure and composition were investigated. When the film was prepared at room temperature under CS2 pressure of 1.33 Pa, the composition of the film was found to be close to the target composition. The room-temperature electrical resistivity and Seebeck coefficient of this film are 63 μΩ•m and -42 μV/K, respectively.

収録刊行物

  • 資源と素材

    資源と素材 124 (10/11), 648-652, 2008

    一般社団法人 資源・素材学会

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