酸性クエン酸水溶液からのCdTe薄膜電析

書誌事項

タイトル別名
  • Electrodeposition of CdTe from Acidic Aqueous Solutions Containing Citric Acid
  • サンセイ クエンサン スイヨウエキ カラ ノ CdTe ハクマクデンセキ
公開日
2004
資源種別
journal article
DOI
  • 10.4139/sfj.55.360
公開者
一般社団法人 表面技術協会

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説明

Potentiostatic cathodic electrodeposition of CdTe compound on a gold-plated substrate was studied at 70ºC using new acidic aqueous electrolytic baths (pH3.0) containing citric acid. The composition of the deposits was controlled by changing the deposition potential, which depended on the concentrations of Te(IV) and citrate. The stoichiometric CdTe layers obtained were polycrystalline, having a uniform surface morphology without pinholes. In the presence of citrate ions, the solubility of tetravalent tellurium species in the citrate bath at pH3.0 was more than 10mM, which was about one or two orders higher than that in conventional acidic sulfate baths. The increase in the solubility will be accounted for by a complexation between Te(IV) and citrate ions, which has not been reported so far. A set of linear sweep cathodic voltammograms for Te(IV)-citrate baths suggested the presence of the complex.<br>

収録刊行物

  • 表面技術

    表面技術 55 (5), 360-365, 2004

    一般社団法人 表面技術協会

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