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Lock-in thermography - A universal tool for local analysis of solar cells

: Breitenstein, O.; Rakotoniaina, J.P.; Kaes, M.; Seren, S.; Pernau, T.; Hahn, G.; Warta, W.; Isenberg, J.

Volltext urn:nbn:de:0011-n-502975 (839 KByte PDF)
MD5 Fingerprint: 653f9f79712d298e21d90eb1364ee2ed
Erstellt am: 12.10.2012

20th European Photovoltaic Solar Energy Conference 2005. Proceedings : Barcelona, 6-10 June 2005
München: WIP-Renewable Energies, 2005
ISBN: 3-936338-19-1
European Photovoltaic Solar Energy Conference <20, 2005, Barcelona>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer ISE ()

This contribution gives an overview about the present state of the art of Lock-in Thermography (LIT) applied in solar cell research. Originally introduced as a shunt imaging technique working without light irradiation, recently a number of new LIT techniques have been proposed using light irradiation to the cell. These techniques allow to image the lifetime distribution and Joule heat losses under illumination, and they allow to detect noncontacted regions in the cell. Moreover, shunts can be imaged already before contacts are made. All presently known LIT techniqes applied to solar cells are reviewed and their physical bases are explained. With these new techniques, LIT has become a universal tool for characterizing solar cells.