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Excellent passivation structure of high efficiency multicrystalline silicon solar cells

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6 Author(s)
Wen-Ching Sun ; Photovoltaics Technology Center Industrial Technology Research Institute, Hsinchu, Taiwan ; Chien-Hsun Chen ; Chien-Rong Huang ; Chen-Hsun Du
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The passivation effects for multicrystalline silicon solar cell with different configurations are investigated. Al2O3 and SiO2 films are used as the passivation layer in this work. They are prepared by atomic layer deposition and thermal oxidation, respectively. Using monolayer (Al2O3 or SiO2) as the passivation layer, the cell efficiency is 16.33% and 17.41%, respectively. The excellent passivation structure shows the drastic enhancement in cell efficiency of 19.09%. The quantum efficiency results show the improvement in the IR range, which explains the high energy conversion efficiency for the excellent structure.

Published in:

Photovoltaic Specialists Conference, 2008. PVSC '08. 33rd IEEE

Date of Conference:

11-16 May 2008