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Electrically conductive adhesives for photovoltaic modules

: Geipel, Torsten
: Rissing, Lutz; Maier, Hans Jürgen

Fulltext urn:nbn:de:0011-n-5195102 (69 MByte PDF)
MD5 Fingerprint: 4e3f1edd9fc9a6d880e885b6a1dfade9
Created on: 21.11.2018

Stuttgart: Fraunhofer Verlag, 2018, XXI, 239 pp.
Zugl.: Hannover, Univ., Diss., 2017
Solar Energy and Systems Research
ISBN: 978-3-8396-1352-8
Dissertation, Electronic Publication
Fraunhofer ISE ()
electronic devices & materials; material science; industrial chemistry & chemical engineering; polymer chemistry; erneuerbare Energie; alternative Technologie; Materialwissenschaft; elektronisches Bauteil; elektronische Materialien; Kunststofftechnologie; Polymertechnologie; Polymerchemie; Elektroingenieur; Wissenschaftler

Electrically conductive adhesives (ECAs) are used for the interconnection of crystalline silicon solar cells during the photovoltaic module integration as an alternative to soldering. These materials are lead-free, are processed at a temperature below 200 °C and are particularly suited to interconnect sensitive solar cells due to their mechanical elasticity. In this work ECAs are characterized and assessed with regard to their appropriateness for PV module integration. Electrical characteristics such as volume and contact resistivity are analyzed as well as mechanical properties (e.g. Young's modulus) or thermal stability. Besides characterization of the materials the effect of their proper-ties is studied by simulation. The relation to characteristics of the PV module such as maximum power and fill factor is obtained. Significant results of this work are the definition of assessment criteria for ECAs, the demonstration of a 60-cell photovoltaic module based on a new solar cell metallization pattern and ECA interconnection technology.