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Direct observation of the impurity gettering layers in polysilicon-based passivating contacts for silicon solar cells

Liu, AnYao; Yan, Di; Wong-Leung, Yin-Yin (Jennifer); Li, Li (Lily); Phang, Sieu Pheng; Cuevas, Andres; Macdonald, Daniel

Description

The formation of certain types of doped polysilicon passivating contacts for silicon solar cells is recently reported to generate very strong impurity gettering effects, revealing an important additional benefit of this passivating contact structure. This work investigates the underlying gettering mechanisms by directly monitoring the impurity redistribution during the contact formation and subsequent processes, via a combination of secondary ion mass spectrometry (SIMS), transmission electron...[Show more]

CollectionsANU Research Publications
Date published: 2018-04-19
Type: Journal article
URI: http://hdl.handle.net/1885/186828
Source: ACS Applied Energy Materials
DOI: 10.1021/acsaem.8b00367

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