Structural, optical and electrical properties of ZnTe thin films electrochemically deposited from a citric acid aqueous solution

Takahiro Ishizaki, Takeshi Ohtomo, Akio Fuwa

研究成果: Article査読

54 被引用数 (Scopus)

抄録

ZnTe thin films were electrodeposited onto Au-coated Cu substrates from an electrolytic solution containing ZnSO4, TeO2, citric acid and sodium citrate, and the dependence of structure, composition and surface morphology on the solution's Zn concentration were investigated. Results of examinations for resistivity and optical absorption demonstrated, respectively, that as the Zn concentration in the electrolyte was reduced over the range of 5-50 mmol dm-3, the resistivity of the films obtained continuously decreased and their band gap increased. Quantitative analysis of energy dispersive x-ray analysis and inductively coupled plasma results indicated that the composition ratio (Zn:Te) was approximately stoichiometric under all conditions in this study. X-ray diffraction results revealed that all the ZnTe thin films obtained showed a preferred (111) orientation with cubic structure. ZnTe thin films we transferred onto nonconductive epoxy resin also showed the same structure.

本文言語English
ページ(範囲)255-260
ページ数6
ジャーナルJournal of Physics D: Applied Physics
37
2
DOI
出版ステータスPublished - 2004 1 21
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 音響学および超音波学
  • 表面、皮膜および薄膜

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