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Nondestructive Characterization of Voids in Rear Local Contacts of PERC-Type Solar Cells
- In this paper, we present two nondestructive characterization methods for the detection of voids in rear local contacts of passivated emitter and rear-type solar cells, namely scanning acoustic microscopy and computer tomography. We compare both methods and include a comparison with electroluminescence measurements. It is shown in this paper that voids can easily be detected with both measurement types without any sample preparation. We found a good match of scanning acoustic microscopy (SAM) and computer tomography (CT), which is presented for this purpose for the first time. The investigation was carried out for different aluminum pastes.
Author: | Katharina Dressler, Miriam Rauer, Michael Kaloudis, Stefan Dauwe, Axel Herguth, Giso Hahn |
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DOI: | https://doi.org/10.1109/JPHOTOV.2014.2359745 |
Parent Title (German): | IEEE Journal of Photovoltaics |
Document Type: | Article |
Language: | German |
Year of Completion: | 2014 |
Date of first Publication: | 2014/12/18 |
Release Date: | 2015/06/08 |
GND Keyword: | Solarzelle |
Volume: | 2015 |
Issue: | 1 |
First Page: | 70 |
Last Page: | 76 |
Urheberrecht: | 1 |
research focus : | Intelligent Systems / Electronics and Electric Drives |
Materials / Clean Tech | |
Materials / Material Testing & Sensor Technology | |
Licence (German): | Keine Lizenz - es gilt das deutsche Urheberrecht |