Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2010.06a
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- Pages.68-68
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- 2010
A Study on Bow of Silicon Solar Cell by Soldering Different Thickness of Ribbon
리본 두께에 따른 태양전지 Bowing현상 연구
- Yoon, Na-Ri (Konkuk University) ;
- Jung, Tae-Hee (Konkuk University) ;
- Shin, Jun-Oh (Konkuk University) ;
- Kang, Ki-Hwan (Korea Institute of Energy Research) ;
- Ahn, Hyeung-Ken (Konkuk University) ;
- Han, Deuk-Young (Konkuk University)
- Published : 2010.06.16
Abstract
To reduce PV manufacturing costs, the thickness of solar cell is getting thinner. Bow is shown after cooling down the temperature of solder cell. It happens because of different thermal expansion coefficients of different metals. Bowed cell can make micro crack while module processing and it can drop off efficiency of PV module. As thinner solar cell is produced, the thickness of ribbon should be concerned to prevent extra bow. In this paper we investigate the contrast of deflection when we solder different thickness of ribbons on same solar cell. This approach would help to find out the optical thickness of ribbon for particular thickness of solar cell later on.