6 March 2014 Quasi-simultaneous laser soldering for the interconnection of back-contact solar cells with composite foils
Author Affiliations +
Abstract
In this contribution we evaluate laser scanning approaches for the interconnection of the 31 electrical contacts of a MWT back-contact solar cell. The selective energy deposition with a laser system allows the minimization of thermomechanical stress in the wafer, but requires adapted scanning strategies to prevent damages in the solar cell top layer. The laser scanning process of the MWT solar cell is conducted in combination with a composite foil as an interconnector and a pre-dispensed solder paste. This approach is evaluated regarding the joining quality of the interconnection as a function of the scanning strategy.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Simon W. Britten, Rumitha Seva Bala Sundaram, Alexander Olowinsky, Arnold Gillner, "Quasi-simultaneous laser soldering for the interconnection of back-contact solar cells with composite foils", Proc. SPIE 8968, Laser-based Micro- and Nanoprocessing VIII, 89680V (6 March 2014); doi: 10.1117/12.2040523; https://doi.org/10.1117/12.2040523
PROCEEDINGS
11 PAGES


SHARE
Back to Top