The lead salt quantum dot intermediate band solar cell

Antolín Fernández, Elisa and Martí Vega, Antonio and Luque López, Antonio (2011). The lead salt quantum dot intermediate band solar cell. In: "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.

Description

Title: The lead salt quantum dot intermediate band solar cell
Author/s:
  • Antolín Fernández, Elisa
  • Martí Vega, Antonio
  • Luque López, Antonio
Item Type: Presentation at Congress or Conference (Article)
Event Title: 37th IEEE Photovoltaic Specialists Conference, PVSC 2011
Event Dates: 19/06/2011 - 24/06/2011
Event Location: Seattle, EEUU
Title of Book: Proceedings of 37th IEEE Photovoltaic Specialists Conference, PVSC 2011
Date: 2011
ISBN: 978-1-4244-9966-3
Subjects:
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Electrónica Física
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (1MB) | Preview

Abstract

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.

More information

Item ID: 11572
DC Identifier: http://oa.upm.es/11572/
OAI Identifier: oai:oa.upm.es:11572
DOI: 10.1109/pvsc.2011.6186324
Official URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?reload=true&arnumber=6186324&contentType=Conference+Publications
Deposited by: Memoria Investigacion
Deposited on: 19 Jul 2012 08:38
Last Modified: 20 Apr 2016 19:36
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM