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Electronic Energy Bands in γ-InSe with and without Intercalated Lithium

Published online by Cambridge University Press:  28 February 2011

P. Gomes Da Costa ,
M. Balkanski  and
R. F. WALLIS
P. Gomes Da Costa
Affiliation:
Institute for Surface and Interface Science and Department of Physics, University of California, Irvine, CA 92717
M. Balkanski
Affiliation:
Laboratoire de Physique des Solides, CNRS 154, Université Pierre et Marie Curie, 4 Place Jussieu, 75252 Paris Cédex 05, France
R. F. WALLIS
Affiliation:
Institute for Surface and Interface Science and Department of Physics, University of California, Irvine, CA 92717
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Abstract

The effect of intercalated lithium on the electronic band structure of the γ-polytype of InSe has been investigated using a tight-binding method. The energy bands of the pure polytype were calculated and the results compared with previous work. The modifications of the energy bands produced by the introduction of one lithium atom per unit cell were calculated for the lowest potential energy position of the lithium atom in the Van der Waals gap between layers. The results for the changes in the smallest and next-to-smallest direct band gaps are compared with experimental data. An interpretation of a photoluminescence peak produced by lithium intercalation is given.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 210: Symposium L – Solid State Ionics II , 1990 , 137
Copyright
Copyright © Materials Research Society 1991

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