Hyperspectral Imaging of Photovoltaic Conversion
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Erratum Hyperspectral Imaging of Photovoltaic Conversion – ERRATUM Jean-François Guillemoles, Amaury Delamarre, Gilbert El-Hajje, P. Rale, J. Rodière, D. Ory, Myriam Paire, Daniel Lincot, Kentaroh Watanabe, Masakazu Sugiyama, and Laurent Lombez doi: 10.1557/opl.2014.700, Published by Materials Research Society, 14 July 2014. The article by Guillemoles et al. was published with the wrong volume number. The correct volume number is Volume 1670. The Materials Research Society apologizes to the authors for this error. The correct version of the article follows this notice.
Reference Jean-François Guillemoles, Amaury Delamarre, Gilbert El-Hajje, P. Rale, J. Rodière, D. Ory, Myriam Paire, Daniel Lincot, Kentaroh Watanabe, Masakazu Sugiyama and Laurent Lombez (2014). Hyperspectral Imaging of Photovoltaic Conversion. MRS Proceedings, 1670, mrss14-1717-h04-04 doi:10.1557/opl.2014.700.
Mater. Res. Soc. Symp. Proc. Vol. 1670 © 2014 Materials Research Society DOI: 10.1557/opl.2014.700
Hyperspectral Imaging of Photovoltaic Conversion Jean-François Guillemoles§*, Amaury Delamarre§,*, Gilbert El-Hajje§, P. Rale§, J. Rodière§, D. Ory§, Myriam Paire§, Daniel Lincot§, Kentaroh Watanabe*, Masakazu Sugiyama* and Laurent Lombez§ IRDEP, Institute of R&D on Photovoltaic Energy, UMR 7174, CNRS-EDF-Chimie ParisTech 6 Quai Watier-BP 49, 78401 Chatou cedex, France * NextPV, RCAST/CNRS, Tokyo University, 4-6-1 Komaba, Meguro-ku Tokyo 153-8904, Japan. Email: [email protected]; [email protected]
ABSTRACT We analyze photoluminescence (PL) and electroluminescence (EL) using a hyperspectral imager that records spectrally resolved luminescence images of solar cell absorbers. The system is calibrated to yield the luminescence flux in absolute values. This system enables to quantitatively image physical parameters such as the photovoltage with an uncertainty of less than 30mV. The wide field illumination, low power excitation and fast acquisition brings new insights compared to classical setups such as confocal microscope. Several types of absorbers have been analyzed. For instance, we can investigate spatial fluctuations of the Quasi Fermi Levels splitting in CIGS polycristalline absorbers and link those fluctuations to transport properties. The method is general to the point that third generation PV cells absorbers can also be evaluated. We illustrate the great potential of our setup by imaging carrier temperature in Hot Carriers Solar cells absorbers and quasi Fermi levels splitting in Intermediate Band Solar cells.
INTRODUCTION Photoluminescence (PL) and electroluminescence (EL) spectra allow the determination of important optoelectronic parameters of solar cells, such as the open circuit voltage from PL [1] or the external quantum efficiency (EQE) from EL [2]. To get an accurate measurement of those parameters and thus a correct understanding, experimental conditions have to be properly set. We propose here to use a hyperspectral imager that can record spectrally resolved images. The absolute calibration of
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