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Accurate IV-measurement for back contact solar cells

: Glatthaar, M.; Hohl-Ebinger, J.; Krieg, A.; Greif, M.; Greco, L.; Clement, F.; Rein, S.; Warta, W.; Preu, R.

Fulltext urn:nbn:de:0011-n-1563706 (233 KByte PDF)
MD5 Fingerprint: 240fd5b06f3b4ca230d5950da68be890
Created on: 3.8.2012

European Commission:
25th European Photovoltaic Solar Energy Conference and Exhibition, EU PVSEC 2010. Proceedings : 5th World Conference on Photovoltaic Energy Conversion, 6-10 , September 2010, Valencia, Spain
München: WIP-Renewable Energies, 2010
ISBN: 3-936338-26-4
European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC) <25, 2010, Valencia>
World Conference on Photovoltaic Energy Conversion <5, 2010, Valencia>
Conference Paper, Electronic Publication
Fraunhofer ISE ()
PV Produktionstechnologie und Qualitätssicherung; Silicium-Photovoltaik; Charakterisierung von Prozess- und Silicium-Materialien; Messtechnik und Produktionskontrolle; Produktionsanlagen und Prozessentwicklung; Charakterisierung; Qualitätssicherung und Messtechnikentwicklung: Material; Zellen und Module

Placing the electrical contacts of both polarities on the back side of a solar cell reduces shading losses and is therefore beneficial for the solar cell efficiency. Few concepts are already on the market but it is expected that a large break through of back contact solar cells is coming in near future. To determine the solar cell performance it is essential that the current-voltage-curve under illumination can be measured accurately with a temporary electrical contacting. In this paper we discuss the requirements for a certified measurement of the solar cell performance with respect to back contact solar cells. In the experimental section we show how these requirements are fulfilled by a measurement chuck constructed at Fraunhofer ISE.