Luminescence emission from forward- and reverse-biased multicrystalline silicon solar cells

verfasst von
K. Bothe, K. Ramspeck, D. Hinken, C. Schinke, J. Schmidt, S. Herlufsen, R. Brendel, J. Bauer, J. M. Wagner, N. Zakharov, O. Breitenstein
Abstract

We study the emission of light from industrial multicrystalline silicon solar cells under forward and reverse biases. Camera-based luminescence imaging techniques and dark lock-in thermography are used to gain information about the spatial distribution and the energy dissipation at pre-breakdown sites frequently found in multicrystalline silicon solar cells. The pre-breakdown occurs at specific sites and is associated with an increase in temperature and the emission of visible light under reverse bias. Moreover, additional light emission is found in some regions in the subband-gap range between 1400 and 1700 nm under forward bias. Investigations of multicrystalline silicon solar cells with different interstitial oxygen concentrations and with an electron microscopic analysis suggest that the local light emission in these areas is directly related to clusters of oxygen.

Externe Organisation(en)
Institut für Solarenergieforschung GmbH (ISFH)
Schott Solar AG
Max-Planck-Institut für Mikrostrukturphysik
Typ
Artikel
Journal
Journal of applied physics
Band
106
ISSN
0021-8979
Publikationsdatum
2009
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Allgemeine Physik und Astronomie
Elektronische Version(en)
https://doi.org/10.1063/1.3256199 (Zugang: Geschlossen)
https://www.repo.uni-hannover.de/handle/123456789/2571 (Zugang: Offen)