On-site measurement of limiting subcell in multijunction solar devices

Muñoz Cerón, Emilio and Miñano Dominguez, Juan Carlos and Benitez Gimenez, Pablo and Almonacid Puche, Gabino and Buljan, Marina (2012). On-site measurement of limiting subcell in multijunction solar devices. In: "8th International Conference on Concentrating Photovoltaic Systems", 16/04/2012 - 18/04/2012, Toledo, Spain. pp. 157-160. https://doi.org/10.1063/1.4753857.

Description

Title: On-site measurement of limiting subcell in multijunction solar devices
Author/s:
  • Muñoz Cerón, Emilio
  • Miñano Dominguez, Juan Carlos
  • Benitez Gimenez, Pablo
  • Almonacid Puche, Gabino
  • Buljan, Marina
Item Type: Presentation at Congress or Conference (Article)
Event Title: 8th International Conference on Concentrating Photovoltaic Systems
Event Dates: 16/04/2012 - 18/04/2012
Event Location: Toledo, Spain
Title of Book: International Conference on Concentrating Photovoltaic Systems
Date: 2012
Volume: 1477/1
Subjects:
Freetext Keywords: Photoconductivity, solar cells, solar radiation
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Electrónica Física
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

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.

More information

Item ID: 19711
DC Identifier: http://oa.upm.es/19711/
OAI Identifier: oai:oa.upm.es:19711
DOI: 10.1063/1.4753857
Official URL: http://proceedings.aip.org/resource/2/apcpcs/1477/1/157_1
Deposited by: Memoria Investigacion
Deposited on: 15 Sep 2013 10:41
Last Modified: 21 Apr 2016 20:56
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