Friday, November 13, 2009

Acronym in photovoltaics: LFC for laser fired contacts

Laser fired contacts (LFC) are electrically conductive point contacts on the rear of a solar cell, typically a cell based on crystalline silicon in which the silicon surface is separated from a metal layer by a dielectric passivation layer. LFC formation within such a structure is achieved by local laser heating, using a Nd-YAG laser which fires point contacts through the dielectric layer by metal/silicon alloying.
The LFC concept was developed by a team of researchers at the Fraunhofer Institute for Solar Energy Systems (ISE) in Freiburg, Germany [1].

Keywords: photovoltaics, solar cell design, device structure

E. Schneiderlöchner, R. Preu, R. Lüdermann and S. W. Glunz: Laser-fired contacts for crystalline solar cells. Progress in Photovoltaics: Research and Applications 2002, 10, pp. 29-34.
DOI: 10.1002/pip.422.

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