TY - GEN
T1 - Reliability of copper-ribbons in photovoltaic modules under thermo-mechanical loading
AU - Meier, R.
AU - Kraemer, F.
AU - Wiese, S.
AU - Wolter, K. J.
AU - Bagdahn, J.
PY - 2010/12/20
Y1 - 2010/12/20
N2 - Every temperature change induces stress between the module components due to the thermo-mechanical mismatch, which results in a displacement of solar cells in the module and therefore loads the solar cell interconnectors in between. As a result a limiting factor of solar module lifetime is the fatigue behaviour of these electrical cell interconnectors: the copper-ribbons. The purpose of this work is a quantitative estimation of the thermo-mechanical induced strain in the ribbons during service. For this purpose specially prepared solar cells were laminated to a solar module in an industrial process line and filmed during thermal cycling tests. Finally, the loading conditions on the ribbon were assessed by a previously developed lifetime model based on mechanical fatigue testing procedures.
AB - Every temperature change induces stress between the module components due to the thermo-mechanical mismatch, which results in a displacement of solar cells in the module and therefore loads the solar cell interconnectors in between. As a result a limiting factor of solar module lifetime is the fatigue behaviour of these electrical cell interconnectors: the copper-ribbons. The purpose of this work is a quantitative estimation of the thermo-mechanical induced strain in the ribbons during service. For this purpose specially prepared solar cells were laminated to a solar module in an industrial process line and filmed during thermal cycling tests. Finally, the loading conditions on the ribbon were assessed by a previously developed lifetime model based on mechanical fatigue testing procedures.
UR - http://www.scopus.com/inward/record.url?scp=78650106658&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78650106658&partnerID=8YFLogxK
U2 - 10.1109/PVSC.2010.5614220
DO - 10.1109/PVSC.2010.5614220
M3 - Conference contribution
AN - SCOPUS:78650106658
SN - 9781424458912
T3 - Conference Record of the IEEE Photovoltaic Specialists Conference
SP - 1283
EP - 1288
BT - Program - 35th IEEE Photovoltaic Specialists Conference, PVSC 2010
T2 - 35th IEEE Photovoltaic Specialists Conference, PVSC 2010
Y2 - 20 June 2010 through 25 June 2010
ER -