Demonstration of the operation principles of intermediate band solar cells at room temperature

López Estrada, Esther and Datas Medina, Alejandro and Ramiro Gonzalez, Iñigo and García-Linares Fontes, Pablo and Antolín Fernández, Elisa and Artacho Huertas, Irene and Martí Vega, Antonio and Luque López, Antonio and Shoji, Y. and Sogabe, T. and Ogura, A. and Okada, Y. (2016). Demonstration of the operation principles of intermediate band solar cells at room temperature. "Solar Energy Materials and Solar Cells", v. 149 (n. May'16); pp. 15-18. ISSN 0927-0248. https://doi.org/10.1016/j.solmat.2015.12.031.

Description

Title: Demonstration of the operation principles of intermediate band solar cells at room temperature
Author/s:
  • López Estrada, Esther
  • Datas Medina, Alejandro
  • Ramiro Gonzalez, Iñigo
  • García-Linares Fontes, Pablo
  • Antolín Fernández, Elisa
  • Artacho Huertas, Irene
  • Martí Vega, Antonio
  • Luque López, Antonio
  • Shoji, Y.
  • Sogabe, T.
  • Ogura, A.
  • Okada, Y.
Item Type: Article
Título de Revista/Publicación: Solar Energy Materials and Solar Cells
Date: May 2016
ISSN: 0927-0248
Volume: 149
Subjects:
Freetext Keywords: Intermediate band solar cells; InGaAs/AlGaAs quantum dots; Two-photon photocurrent; Voltage preservation
Faculty: Instituto de Energía Solar (IES) (UPM)
Department: Electrónica Física
UPM's Research Group: Silicio y Nuevos Conceptos de Células Solares
Creative Commons Licenses: None

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Abstract

In this work we report, for the first time at room temperature, experimental results that prove, simultaneously in the same device, the two main physical principles involved in the operation of intermediate band solar cells: (1) the production of sub-bandgap photocurrent by two optical transitions through the intermediate band; (2) the generation of an output voltage which is not limited by the photon energy absorption threshold. These principles, which had always required cryogenic temperatures to be evidenced all together, are now demonstrated at room temperature on an intermediate band solar cell based on InAs quantum dots with Al0.3Ga0.7As barriers.

Funding Projects

TypeCodeAcronymLeaderTitle
FP7283798NGCPVAntonio LuqueA new generation of concentrator photovoltaic cells, modules and systems
Madrid Regional GovernmentS2013/MAE-2780PROMESAAntonio Martí VegaMateriales, dispositivos y tecnología para el desarrollo de la industria fotovoltaica
Government of SpainENE2012-37804-C02-01PROMESAAntonio LuqueAplicación de estructuras cuánticas y otros nuevos conceptos a la mejora de la eficiencia de las células solares

More information

Item ID: 39030
DC Identifier: http://oa.upm.es/39030/
OAI Identifier: oai:oa.upm.es:39030
DOI: 10.1016/j.solmat.2015.12.031
Official URL: https://doi.org/10.1016/j.solmat.2015.12.031
Deposited by: Prof. Antonio Martí Vega
Deposited on: 14 Jan 2016 11:55
Last Modified: 13 Mar 2019 15:09
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