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A photoelectron spectroscopy study of the electronic structure evolution in CulnSe_2-related compounds at changing copper content

机译：铜含量变化时CulnSe_2相关化合物电子结构演变的光电子能谱研究

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摘要

Evolution of the valence-band structure at gradually increasing copper content has been analysed by x-ray photoelectron spectroscopy (XPS) in In_2Se_3, CuIn_5Se_8, CuIn_3Se_5, and CuInSe_2 single crystals. A comparison of these spectra with calculated total and angular-momentum resolved density-of-states (DOS) revealed the main trends of this evolution. The formation of the theoretically predicted gap between the bonding and non-bonding states has been observed in both experimental XPS spectra and theoretical DOS.
机译：通过X射线光电子能谱（XPS）分析了In_2Se_3，CuIn_5Se_8，CuIn_3Se_5和CuInSe_2单晶中价带结构在铜含量逐渐增加时的演变。将这些光谱与计算出的总动量和角动量分辨的状态密度（DOS）进行比较，发现了这种演变的主要趋势。在实验XPS光谱和理论DOS中都观察到了键合态和非键合态之间理论上预测的间隙的形成。

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  • 来源
    《Applied Physics Letters》 |2012年第11期|p.111607.1-111607.4|共4页
  • 作者

    T. V. Kuznetsova; V. I. Grebennikov; H. Zhao; C. Derks; C. Taubitz; M. Neumann; C. Persson; M. V. Kuznetsov; I. V. Bodnar; R. W. Martin; M. V. Yakushev;

  • 作者单位

    Institute of Metal Physics, UB RAS, 620041 Ekaterinburg, Russia;

    Institute of Metal Physics, UB RAS, 620041 Ekaterinburg, Russia;

    Department of Materials Science and Engineering, Royal Institute of Technology, SE-100 44 Stockholm,Sweden;

    University of Osnabriick, D-49069 Osnabritck, Germany;

    University of Osnabriick, D-49069 Osnabritck, Germany;

    University of Osnabriick, D-49069 Osnabritck, Germany;

    Department of Materials Science and Engineering, Royal Institute of Technology, SE-100 44 Stockholm,Sweden,Department of Physics, University of Oslo, P.O. Box 1048 Blindern, NO-0316 Oslo, Norway;

    Institute of Solid State Chemistry, UB RAS, 620990 Ekaterinburg, Russia,Urals Federal University, 19 Mira Str., Ekaterinburg 620002, Russia;

    Department of Chemistry, Belarusian State University of Informatics and Radioelectronics, P. Brovka 6,220027 Minsk, Belarus;

    Department of Physics, SUP A, Strathclyde University, G4 ONG Glasgow, United Kingdom;

    Department of Physics, SUP A, Strathclyde University, G4 ONG Glasgow, United Kingdom;

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