Journal
SOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume 91, Issue 17, Pages 1638-1644Publisher
ELSEVIER
DOI: 10.1016/j.solmat.2007.05.028
Keywords
edge isolation; laser; solar cells
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In this paper, we review the device physics to explain the necessity of edge isolation as well as the various common methods for performing this important step. In order to assess these processes, different aspects have to be taken into consideration and will be discussed. Finally, experimental results of edge isolation on commercial multicrystalline solar cells with waterjet-guided laser (wavelength 1064 nm) and conventional laser (wavelength 355 nm) are presented and discussed. From the experiments, we conclude that the waterjetguided laser shows the potential to improve the laser scribing process in terms of pn junction damage and mechanical stability. (c) 2007 Elsevier B.V. All rights reserved.
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