Optimum single-gap solar cells for missions to Mercury

López Estrada, Esther; Martí Vega, Antonio; Llorens, J.M.; Buencuerpo, J. y Versloot, T. (2016). Optimum single-gap solar cells for missions to Mercury. "Journal of Spacecraft and Rockets", v. Online ; pp. 1-5. ISSN 0022-4650. https://doi.org/10.2514/1.a33533.

Descripción

Título: Optimum single-gap solar cells for missions to Mercury
Autor/es:
  • López Estrada, Esther
  • Martí Vega, Antonio
  • Llorens, J.M.
  • Buencuerpo, J.
  • Versloot, T.
Tipo de Documento: Artículo
Título de Revista/Publicación: Journal of Spacecraft and Rockets
Fecha: 14 Julio 2016
Volumen: Online
Materias:
Escuela: Instituto de Energía Solar (IES) (UPM)
Departamento: Electrónica Física
Grupo Investigación UPM: Silicio y Nuevos Conceptos para Células Solares
Licencias Creative Commons: Ninguna

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Resumen

The power supply for space probes is usually based on photovoltaic (PV) systems. The first solar cells used in these systems were single-gap solar cells fabricated with Si and GaAs. Later on, multijunction solar cells (MJSC) based on III–V semiconductors were developed because of their higher efficiency and tolerance to a radiation environment [1]. All these solar cells have been based on semiconductors that fulfill the needs of most near-Earth missions. However, those same semiconductors fail to meet the needs of some other missions involving harsh environments such as high-intensity high-temperature (HIHT) environments [2]. In this work, we investigate which semiconductor material is optimum to implement single-gap solar cells for missions to Mercury, where HIHT conditions are expected. Because solar cell efficiency decreases as temperature increases [3], achieving high-efficiency photovoltaic conversion at HIHT conditions is a big challenge. Previous works have pointed out the need of using wide-bandgap semiconductors to reach this goal [4,5]. In this context, we will study the potential of solar cells based on AlxGa1−xAs, a well-known semiconductor whose physical properties have been extensively investigated. The limiting efficiency of these solar cells performing in near-Mercury missions will be calculated to determine the optimum composition for AlxGa1−xAs.

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
Comunidad de MadridS2013/MAE-2780MADRID-PVAntonio Martí VegaMateriales, dispositivos y tecnología para el desarrollo de la Industria fotovoltaica

Más información

ID de Registro: 42857
Identificador DC: http://oa.upm.es/42857/
Identificador OAI: oai:oa.upm.es:42857
Identificador DOI: 10.2514/1.a33533
URL Oficial: http://arc.aiaa.org/doi/abs/10.2514/1.A33533
Depositado por: Prof. Antonio Martí Vega
Depositado el: 18 Jul 2016 10:18
Ultima Modificación: 15 Sep 2017 22:30
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