Memorias de investigación
Ponencias en congresos:
On-site measurement of limiting subcell in multijunction solar devices
Año:2012

Áreas de investigación
  • Ingenierías

Datos
Descripción
It is well known that the response of any photovoltaic solar cell is dependent on the spectral characteristics of the incident radiation. This dependency is crucial in the output characteristics of a multijunction (MJ) cell where the spectral composition of the radiation determines the overall photocurrent produced, as either the top or the middle subcell will be limiting its response. The current mismatching between top and middle subcell is translated into energy losses, affecting the yield of the system. For research and commercial purposes it is interesting to measure accurately the incident solar radiation on a MJ cell, in terms of its spectral composition. This measurement will allows us to determine the photocurrent generated in each band of the multijunction device. Nowadays, the only way of measuring the photocurrent generated by each subcell is done with isotype cells or with spectroradiometers but there is no device capable of directly measuring each subcell photocurrent. In this paper it is described a device based on a commercial multijunction solar cell that is capable of measuring the direct irradiance for the top and middle bands thus it offers information of the limiting subcell (top or middle) in outdoors conditions.
Internacional
Si
Nombre congreso
8th International Conference on Concentrating Photovoltaic Systems : CPV-8
Tipo de participación
960
Lugar del congreso
Toledo (España)
Revisores
Si
ISBN o ISSN
978-0-7354-1086-2
DOI
10.1063/1.4753857
Fecha inicio congreso
16/04/2012
Fecha fin congreso
18/04/2012
Desde la página
157
Hasta la página
160
Título de las actas
AIP Conf. Proc. 1477, 157 (2012)

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Participantes

Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Ingeniería Óptica
  • Centro o Instituto I+D+i: Centro de Domótica Integral, CEDINT
  • Departamento: Electrónica Física