Resistive interlayer for improved performance of thin film silicon solar cells on highly textured substrate

The deposition of thin-film silicon solar cells on highly textured substrates results in improved light trapping in the cell. However, the growth of silicon layers on rough substrates can often lead to undesired current drains, degrading performance and reliability of the cells. We show that the use of a silicon oxide interlayer between the active area and the back contact of the cell permits in such cases to improve the electrical properties. Relative increases of up to 7.5% of fill factor and of 6.8% of conversion efficiency are shown for amorphous silicon cells deposited on highly textured substrates, together with improved yield and low-illumination performance


Published in:
Applied Physics Letters, 96, 073507
Year:
2010
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IMT-NE Number: 554
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Note: The status of this file is: EPFL only


 Record created 2010-02-22, last modified 2018-03-17

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