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Proceedings Paper

Characterisation of multi-junction solar cells by mapping of the carrier transport efficiency using luminescence emission
Author(s): Amaury Delamarre; Jieyang Jia; Paul Verdier; Kentaroh Watanabe; Masakazu Sugiyama; Yoshiaki Nakano; Jean-François Guillemoles
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Paper Abstract

Multijunction solar cells are currently the devices offering the largest conversion efficiencies of the solar radiation, which could be further increased by limiting their series resistances. A clear evaluation of the impact of those resistances is therefore required, and provided in this paper by introducing a mapping method of the current transport efficiency from luminescence images. This method brings finer information on the cell than electroluminescence methods, widely used so far for multi-junction cells, and offers much faster acquisition time than what could be obtained with a light beam induced current setup. While it has been theoretically and experimentally developed for single junction solar cells, its application to multijunction cells remains to be demonstrated. The purpose of this communication is to assess its validity and to explain some results that can be counterintuitive at a first sight. Two different triple-junction architectures are investigated and successfully compared with electrical measurements and calculations.

Paper Details

Date Published: 23 February 2017
PDF: 6 pages
Proc. SPIE 10099, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VI, 100990Z (23 February 2017); doi: 10.1117/12.2250866
Show Author Affiliations
Amaury Delamarre, The Univ. of Tokyo (Japan)
NextPV, LIA CNRS-RCAST/Univ. Tokyo-Univ. Bordeaux (Japan)
Jieyang Jia, Stanford Univ. (United States)
Paul Verdier, The Univ. of Tokyo (Japan)
NextPV, LIA CNRS-RCAST/Univ. Tokyo-Univ. Bordeaux (Japan)
Kentaroh Watanabe, The Univ. of Tokyo (Japan)
NextPV, LIA CNRS-RCAST/Univ. Tokyo-Univ. Bordeaux (Japan)
Masakazu Sugiyama, The Univ. of Tokyo (Japan)
NextPV, LIA CNRS-RCAST/Univ. Tokyo-Univ. Bordeaux (Japan)
Yoshiaki Nakano, The Univ. of Tokyo (Japan)
NextPV, LIA CNRS-RCAST/Univ. Tokyo-Univ. Bordeaux (Japan)
Jean-François Guillemoles, The Univ. of Tokyo (Japan)
NextPV, LIA CNRS-RCAST/Univ. Tokyo-Univ. Bordeaux (Japan)


Published in SPIE Proceedings Vol. 10099:
Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VI
Alexandre Freundlich; Laurent Lombez; Masakazu Sugiyama, Editor(s)

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