A photoelectron spectroscopy study of the electronic structure evolution in CuInSe2-related compounds at changing copper content

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

doi:10.1063/1.4752723

A photoelectron spectroscopy study of the electronic structure evolution in CuInSe2-related compounds at changing copper content

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

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Abstract

Evolution of the valence-band structure at gradually increasing copper content has been analysed by x-ray photoelectron spectroscopy (XPS) in In2Se3, CuIn5Se8, CuIn3Se5, and CuInSe2 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.

Original language	English
Article number	111607
Number of pages	4
Journal	Applied Physics Letters
Volume	101
Issue number	11
DOIs	https://doi.org/10.1063/1.4752723
Publication status	Published - 10 Sept 2012

Keywords

photoelectron spectroscopy study
electronic structure evolution
CuInSe2-related compounds
changing copper content
CUINSE2

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APL101 111607 KuznetsovaSubmitted manuscript, 642 KB

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Kuznetsova, T. V., Grebennikov, V. I., Zhao, H., Derks, C., Taubitz, C., Neumann, M., Persson, C., Kuznetsov, M. V., Bodnar, I. V., Martin, R. W., & Yakushev, M. V. (2012). A photoelectron spectroscopy study of the electronic structure evolution in CuInSe2-related compounds at changing copper content. Applied Physics Letters, 101(11), Article 111607. https://doi.org/10.1063/1.4752723

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title = "A photoelectron spectroscopy study of the electronic structure evolution in CuInSe2-related compounds at changing copper content",

abstract = "Evolution of the valence-band structure at gradually increasing copper content has been analysed by x-ray photoelectron spectroscopy (XPS) in In2Se3, CuIn5Se8, CuIn3Se5, and CuInSe2 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. ",

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AU - Kuznetsova, T. V.

AU - Grebennikov, V. I.

AU - Zhao, H.

AU - Derks, C.

AU - Taubitz, C.

AU - Neumann, M.

AU - Persson, C.

AU - Kuznetsov, M. V.

AU - Bodnar, I. V.

AU - Martin, R. W.

AU - Yakushev, M. V.

PY - 2012/9/10

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N2 - Evolution of the valence-band structure at gradually increasing copper content has been analysed by x-ray photoelectron spectroscopy (XPS) in In2Se3, CuIn5Se8, CuIn3Se5, and CuInSe2 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.

AB - Evolution of the valence-band structure at gradually increasing copper content has been analysed by x-ray photoelectron spectroscopy (XPS) in In2Se3, CuIn5Se8, CuIn3Se5, and CuInSe2 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.

KW - photoelectron spectroscopy study

KW - electronic structure evolution

KW - CuInSe2-related compounds

KW - changing copper content

KW - CUINSE2

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DO - 10.1063/1.4752723

M3 - Article

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JO - Applied Physics Letters

JF - Applied Physics Letters

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ER -

A photoelectron spectroscopy study of the electronic structure evolution in CuInSe2-related compounds at changing copper content

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Keywords

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