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Screen-Printed Aluminum-Alloyed \hbox {P}^{+} Emitter on High-Efficiency N-Type Interdigitated Back-Contact Silicon Solar Cells

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7 Author(s)

We demonstrate the use of industrial-orientated screen-printed aluminum-alloyed emitter for high-efficiency n-type interdigitated back-contact silicon solar cells. Different cell designs with various pitch sizes and emitter fractions have been studied. With an improved front surface field (FSF), short-circuit current densities up to 40 can be obtained. By combining the best cell design and the improved FSF, a high conversion efficiency of 19.1% with Czochralski n-type material has been achieved.

Published in:

Electron Device Letters, IEEE  (Volume:31 ,  Issue: 6 )