Contactless mapping of saturation currents of solar cells by photoluminescence - - Institut de recherche et développement sur l'énergie photovoltaïque Access content directly
Journal Articles Applied Physics Letters Year : 2012

Contactless mapping of saturation currents of solar cells by photoluminescence

Abstract

We report in this letter the contactless measurement of spatially resolved photocurrent–photovoltage relationship. The method is based on hyperspectral imaging, from which we record cartography of absolute photoluminescence spectra from solar cells. Using the generalized Planck’s law, it is therefore possible to derive the quantitative value of the quasi-Fermi levels splitting, related to the voltage over the junction. It allows us to directly extract optoelectronics properties of the device with a solely optical method. As a proof of concept, we derive saturation currents of a GaAs solar cell and find a good agreement with the standard electrical measurements.
Fichier principal
Vignette du fichier
1549965449441713.pdf (655.04 Ko) Télécharger le fichier
Origin : Publisher files allowed on an open archive

Dates and versions

hal-03795259 , version 1 (03-10-2022)

Identifiers

Cite

Amaury Delamarre, Laurent Lombez, Jean-François Guillemoles. Contactless mapping of saturation currents of solar cells by photoluminescence. Applied Physics Letters, 2012, 100 (13), pp.131108. ⟨10.1063/1.3697704⟩. ⟨hal-03795259⟩
41 View
39 Download

Altmetric

Share

Gmail Facebook X LinkedIn More