Stability of amorphous/crystalline silicon heterojunctions

Abstract

Silicon heterojunction solar cells have demonstrated high efficiencies through excellent surface passivation. However, the use of amorphous silicon (a-Si) in the structure raises the question of long term stability as a-Si solar cells suffer degradation due to the Staebler-Wronski effect. The stability of a-Si in terms of its ability to passivate silicon… (More)

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