Empiric k·p Hamiltonian calculation of the band-to-band photon absorption in semiconductors

The Empiric k·p Hamiltonian method is usually applied to nanostructured semiconductors. In this paper, it is applied to a homogeneous semiconductor in order to check the adequacy of the method. In this case, the solutions of the diagonalized Hamiltonian, as well as the envelope functions, are plane...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2015-01, Vol.456, p.82-86
Main Authors: Luque, Antonio, Panchak, Aleksandr, Mellor, Alexander, Vlasov, Alexey, Martí, Antonio, Andreev, Viatcheslav
Format: Article
Language:English
Subjects:
Modeling
Optoelectronic devices
Photon absorption
Photovoltaics
Quantum calculations
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Summary:The Empiric k·p Hamiltonian method is usually applied to nanostructured semiconductors. In this paper, it is applied to a homogeneous semiconductor in order to check the adequacy of the method. In this case, the solutions of the diagonalized Hamiltonian, as well as the envelope functions, are plane waves. The procedure is applied to the GaAs and the interband absorption coefficients are calculated. They result in reasonable agreement with the measured values, further supporting the adequacy of the Empiric k·p Hamiltonian method.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2014.08.026