The lead salt quantum dot intermediate band solar cell

Antolín Fernández, Elisa; Martí Vega, Antonio y Luque López, Antonio (2011). The lead salt quantum dot intermediate band solar cell. En: "37th IEEE Photovoltaic Specialists Conference, PVSC 2011", 19/06/2011 - 24/06/2011, Seattle, EEUU. ISBN 978-1-4244-9966-3. pp. 1907-1912. https://doi.org/10.1109/pvsc.2011.6186324.

Descripción

Título: The lead salt quantum dot intermediate band solar cell
Autor/es:
  • Antolín Fernández, Elisa
  • Martí Vega, Antonio
  • Luque López, Antonio
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 37th IEEE Photovoltaic Specialists Conference, PVSC 2011
Fechas del Evento: 19/06/2011 - 24/06/2011
Lugar del Evento: Seattle, EEUU
Título del Libro: Proceedings of 37th IEEE Photovoltaic Specialists Conference, PVSC 2011
Fecha: 2011
ISBN: 978-1-4244-9966-3
Materias:
Escuela: E.T.S.I. Telecomunicación (UPM)
Departamento: Electrónica Física
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

We propose a new kind of quantum dot (QD) materials for the implementation of the intermediate band solar cell (IBSC) [1]. The materials are formed by lead salt QDs of the family IV-VI (PbTe, PbSe or PbS) embedded in a semiconductor of the family II-VI (Cd1-xMgxTe, CdxZn1-xTe, and CdS1-xSex or ZnSe1-xTex, respectively). These QDs are not nucleated due to lattice mismatch, as it is the case of the InAs/GaAs QD material system grown by the Stranski-Krastanov (S-K) mode. In these materials, the QDs precipitate due to the difference in lattice type: the QD lead salt material crystallizes in the rocksalt structure, while the II-VI host material has the zincblende structure [2]. Therefore, it is possible to use lattice-matched QD/host combinations, avoiding all the strain-related problems found in previous QD-IBSC developments. In this paper we discuss the properties of the lead salt QD materials and propose that they are appropriate to overcome the fundamental drawbacks of present III-V-based QD-IBSC prototypes. We also calculate the band diagram for some examples of IV-VI/II-VI QD materials. The detailed balance efficiency limit of QD-IBSCs based on the studied materials is found to be over 60% under maximum concentration.

Más información

ID de Registro: 11572
Identificador DC: http://oa.upm.es/11572/
Identificador OAI: oai:oa.upm.es:11572
Identificador DOI: 10.1109/pvsc.2011.6186324
URL Oficial: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?reload=true&arnumber=6186324&contentType=Conference+Publications
Depositado por: Memoria Investigacion
Depositado el: 19 Jul 2012 08:38
Ultima Modificación: 20 Abr 2016 19:36
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