Improved modeling of photoluminescent and electroluminescent coupling in multijunction solar cells

Lan, Dongchen and Geisz, John F. and Steiner, Myles A. and García Vara, Iván and Friedman, Daniel J. and Green, Martin A. (2015). Improved modeling of photoluminescent and electroluminescent coupling in multijunction solar cells. "Solar Energy Materials and Solar Cells", v. 143 ; pp. 48-51. ISSN 0927-0248. https://doi.org/10.1016/j.solmat.2015.06.036.

Description

Title: Improved modeling of photoluminescent and electroluminescent coupling in multijunction solar cells
Author/s:
  • Lan, Dongchen
  • Geisz, John F.
  • Steiner, Myles A.
  • García Vara, Iván
  • Friedman, Daniel J.
  • Green, Martin A.
Item Type: Article
Título de Revista/Publicación: Solar Energy Materials and Solar Cells
Date: December 2015
Volume: 143
Subjects:
Freetext Keywords: Radiative coupling; Photoluminescent coupling; Electroluminescent coupling; Tandem solar cells; III‐V materials
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Electrónica Física
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The performance of tandem stacks of Group III?V multijunction solar cells continues to improve rapidly, both through improved performance of the individual cells in the stack and throughi ncrease in the number of stacked cells. As the radiative efficiency of these individual cells increases, radiative coupling between the stacked cells becomes an increasingly important factor not only in cell design, but also in accurate efficiency measurement and in determining performance of cells and systems under varying spectral conditions in the field. Past modeling has concentrated on electroluminescent coupling between the cells, although photoluminescent coupling is shown to be important for cells operating near their maximum power point voltage or below or when junction defect recombination is significant. Extension of earlier models i sproposed to allow this non-negligible component of luminescent coupling to be included. Therefined model is validated by measurement of the closely related external emission from both single and double junction cells.

Funding Projects

TypeCodeAcronymLeaderTitle
FP7299878METACELLSUNIVERSIDAD POLITECNICA DE MADRIDAdvanced epitaxy of metamorphic semiconductor structures for multijunction solar cells

More information

Item ID: 40978
DC Identifier: http://oa.upm.es/40978/
OAI Identifier: oai:oa.upm.es:40978
DOI: 10.1016/j.solmat.2015.06.036
Official URL: http://www.sciencedirect.com/science/article/pii/S0927024815003050
Deposited by: Memoria Investigacion
Deposited on: 14 Jun 2016 16:53
Last Modified: 01 Jan 2018 23:30
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