Comparing the Luttinger–Kohn–Pikus–Bir and the Empiric K·P Hamiltonians in quantum dot intermediate band solar cells manufactured in zincblende semiconductors

Luque López, Antonio and Panchak, Aleksandr and Mellor Null, Alexander Virgil and Vlasov, Alexey and Martí Vega, Antonio and Andreev, Viacheslav (2015). Comparing the Luttinger–Kohn–Pikus–Bir and the Empiric K·P Hamiltonians in quantum dot intermediate band solar cells manufactured in zincblende semiconductors. "Solar Energy Materials and Solar Cells", v. 141 ; pp. 39-48. ISSN 0927-0248. https://doi.org/10.1016/j.solmat.2015.05.013.

Description

Title: Comparing the Luttinger–Kohn–Pikus–Bir and the Empiric K·P Hamiltonians in quantum dot intermediate band solar cells manufactured in zincblende semiconductors
Author/s:
  • Luque López, Antonio
  • Panchak, Aleksandr
  • Mellor Null, Alexander Virgil
  • Vlasov, Alexey
  • Martí Vega, Antonio
  • Andreev, Viacheslav
Item Type: Article
Título de Revista/Publicación: Solar Energy Materials and Solar Cells
Date: October 2015
ISSN: 0927-0248
Volume: 141
Subjects:
Freetext Keywords: Intermediate band solar cells; Quantum calculations; Energy spectrum; Photon absorption
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Electrónica Física
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The calculation of the energy spectrum and absorption coefficients of quantum dot nanostructured intermediate band solar cells using the Empiric K·P Hamiltonian method and its agreement with experimental data are summarized. The well established Luttinger Kohn Hamiltonian modified by Pikus and Bir for strained material, such as quantum dot arrays, is presented using a simplified strain field that allows for square band offsets. The energy spectrum and absorption coefficients are calculated with this new Hamiltonian. With the approximations made the energy spectrum results to be exactly the same but the absorption coefficient fits experiments less accurately. The computer time using the latter Hamiltonian is much longer than the former one.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainENE2012-37804-C02-01UnspecifiedUnspecifiedUnspecified
FP7283798NGCPVUnspecifiedA new generation of concentrator photovoltaic cells, modules and systems

More information

Item ID: 41000
DC Identifier: http://oa.upm.es/41000/
OAI Identifier: oai:oa.upm.es:41000
DOI: 10.1016/j.solmat.2015.05.013
Official URL: http://www.sciencedirect.com/science/article/pii/S0927024815002184
Deposited by: Memoria Investigacion
Deposited on: 14 Jun 2016 17:20
Last Modified: 06 Jun 2019 12:59
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