A photoelectron spectroscopy study of the electronic structure evolution in CuInSe{sub 2}-related compounds at changing copper content
- Institute of Metal Physics, UB RAS, 620041 Ekaterinburg (Russian Federation)
- Department of Materials Science and Engineering, Royal Institute of Technology, SE-100 44 Stockholm (Sweden)
- University of Osnabrueck, D-49069 Osnabrueck (Germany)
- Institute of Solid State Chemistry, UB RAS, 620990 Ekaterinburg (Russian Federation)
- Department of Chemistry, Belarusian State University of Informatics and Radioelectronics, P. Brovka 6, 220027 Minsk (Belarus)
- Department of Physics, SUPA, Strathclyde University, G4 0NG Glasgow (United Kingdom)
Evolution of the valence-band structure at gradually increasing copper content has been analysed by x-ray photoelectron spectroscopy (XPS) in In{sub 2}Se{sub 3}, CuIn{sub 5}Se{sub 8}, CuIn{sub 3}Se{sub 5}, and CuInSe{sub 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.
- OSTI ID:
- 22080430
- Journal Information:
- Applied Physics Letters, Vol. 101, Issue 11; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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