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Luque López, Antonio and Panchak, Aleksandr and Vlasov, Alexey and Martí Vega, Antonio and Andreev, Viacheslav (2015). Four-Band Hamiltonian for fast calculations in intermediate-band solar cells. "Physica E: Low-dimensional Systems and Nanostructures", v. 76 ; pp. 127-134. ISSN 1386-9477. https://doi.org/10.1016/j.physe.2015.10.019.
Title: | Four-Band Hamiltonian for fast calculations in intermediate-band solar cells |
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Author/s: |
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Item Type: | Article |
Título de Revista/Publicación: | Physica E: Low-dimensional Systems and Nanostructures |
Date: | October 2015 |
ISSN: | 1386-9477 |
Volume: | 76 |
Subjects: | |
Freetext Keywords: | Photovoltaics, Quantum calculations, Photon absorption, Quantum efficiency, k·p methods |
Faculty: | Instituto de Energía Solar (IES) (UPM) |
Department: | Electrónica Física |
UPM's Research Group: | Silicio y Nuevos Conceptos para Células Solares |
Creative Commons Licenses: | Recognition - No derivative works - Non commercial |
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The 8-dimensional Luttinger–Kohn–Pikus–Bir Hamiltonian matrix may be made up of four 4-dimensional blocks. A 4-band Hamiltonian is presented, obtained from making the non-diagonal blocks zero. The parameters of the new Hamiltonian are adjusted to fit the calculated effective masses and strained QD bandgap with the measured ones. The 4-dimensional Hamiltonian thus obtained agrees well with measured quantum efficiency of a quantum dot intermediate band solar cell and the full absorption spectrum can be calculated in about two hours using Mathematica© and a notebook. This is a hundred times faster than with the commonly-used 8-band Hamiltonian and is considered suitable for helping design engineers in the development of nanostructured solar cells.
Type | Code | Acronym | Leader | Title |
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FP7 | 283798 | NGCPV | Prof. Antonio Luque | A new generation of concentrator photovoltaic cells, modules and systems |
Government of Spain | ENE2012-37804-C02-01 | PROMESA | Prof. Antonio Martí | Unspecified |
Item ID: | 38266 |
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DC Identifier: | http://oa.upm.es/38266/ |
OAI Identifier: | oai:oa.upm.es:38266 |
DOI: | 10.1016/j.physe.2015.10.019 |
Official URL: | https://www.sciencedirect.com/science/article/pii/S1386947715302484?via%3Dihub |
Deposited by: | Prof. Antonio Luque López |
Deposited on: | 02 Nov 2015 13:53 |
Last Modified: | 03 Jun 2019 15:06 |