한국신재생에너지학회:학술대회논문집
- 2010.06a
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- Pages.91.1-91.1
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- 2010
An Analysis on rear contact for crystalline silicon solar cell
결정질 실리콘 태양전지에 적용하기 위한 후면전극 형성에 관한 연구
- Published : 2010.06.17
Abstract
There are some methods for increasing efficiency of crystalline silicon solar cells. Among them, It is important to reduce the recombination loss of surface for high efficiency. In order to reduce recombination loss is a way to use the BSF(Back Surface Field). The BSF on the back of the p-type wafer forms a p+layer. so, it is prevented to act electrons of the p-area for the rear recombination. As a result, the leakage current is reduced and the rear-contact has a good Ohmic contact. therefore, open-circuit-voltage and Fill factor(FF) of solar cells are increased. This paper investigates the formation of rear contact process comparing Aluminum-paste(Al-paste) with Aluminum-Metal(99.9%). It is shown that the Aluminum-Metal provides high conductivity and low contact resistance of
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