Study on Mitigation Method of Solder Corrosion for Crystalline Silicon Photovoltaic Modules
- Authors
- Kim, Ju-Hee; Park, Jongsung; Kim, Donghwan; Park, Nochang
- Issue Date
- 2014
- Publisher
- HINDAWI LTD
- Citation
- INTERNATIONAL JOURNAL OF PHOTOENERGY, v.2014
- Indexed
- SCIE
SCOPUS
- Journal Title
- INTERNATIONAL JOURNAL OF PHOTOENERGY
- Volume
- 2014
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/133528
- DOI
- 10.1155/2014/809075
- ISSN
- 1110-662X
- Abstract
- The corrosion of 62Sn36Pb2Ag solder connections poses serious difficulties for outdoor-exposed photovoltaic (PV) modules, as connection degradation contributes to the increase in series resistance (R-S) of PV modules. In this study, we investigated a corrosion mitigation method based on the corrosion mechanism. The effect of added sacrificial metal on the reliability of PV modules was evaluated using the oxidation-reduction (redox) reaction under damp heat (DH) conditions. Experimental results after exposure to DH show that the main reason for the decrease in power was a drop in the module's fill factor. This drop was attributed to the increase of R-S. The drop in output power of the PV module without added sacrificial metal is greater than that of the sample with sacrificial metal. Electroluminescence and current-voltage mapping analysis also show that the PV module with sacrificial metal experienced less degradation than the sample without sacrificial metal.
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Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
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