First principles characterization of direct transitions for high efficiency new photovoltaic materials

Tablero Crespo, César and García, A. J. and Fernández Sánchez, Julio Juan and Palacios Clemente, Pablo and Wahnón Benarroch, Perla (2003). First principles characterization of direct transitions for high efficiency new photovoltaic materials. "Computational Materials Science", v. 27 (n. 1-2); pp. 58-64. ISSN 0927-0256. https://doi.org/10.1016/S0927-0256(02)00425-1.

Description

Title: First principles characterization of direct transitions for high efficiency new photovoltaic materials
Author/s:
  • Tablero Crespo, César
  • García, A. J.
  • Fernández Sánchez, Julio Juan
  • Palacios Clemente, Pablo
  • Wahnón Benarroch, Perla
Item Type: Article
Título de Revista/Publicación: Computational Materials Science
Date: 2003
ISSN: 0927-0256
Volume: 27
Subjects:
Freetext Keywords: Direct optical transitions; Intermediate band semiconductor; Low energy photons
Faculty: Instituto de Energía Solar (IES) (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Some alloys containing a transition metal atom in an III–V host semiconductor show an intermediate half filled band in the middle of the usual semiconductor band gap. The presence of this intermediate band allows to use this material in high efficiency solar cells due to its capability of absorbing low energy photons. In the current work a study of the optoelectronic properties is presented. We mainly focus the work in the obtaining the matrix elements that contribute to direct transitions. We also have analyzed some of the factors on which that process depends. We have also found that some low energy transitions can be found for several points inside the Brillouin zone.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainTIC20000–1339–C02–02UnspecifiedUnspecifiedUnspecified

More information

Item ID: 61494
DC Identifier: http://oa.upm.es/61494/
OAI Identifier: oai:oa.upm.es:61494
DOI: 10.1016/S0927-0256(02)00425-1
Official URL: https://www.sciencedirect.com/science/article/pii/S0927025602004251#!
Deposited by: Biblioteca ETSI Telecomunicación
Deposited on: 19 Mar 2020 09:50
Last Modified: 19 Mar 2020 09:50
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