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Published in: Journal of Materials Science 23/2020

02-03-2020 | Advanced Nano Materials

Influence of a nanostructured ZnO layer on the carrier recombination and dynamics in chalcopyrite solar cells

Authors: C. Javier Pereyra, Yesica Di Iorio, Mariana Berruet, Marcela Vazquez, Ricardo E. Marotti

Published in: Journal of Materials Science | Issue 23/2020

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Abstract

The influence of the incorporation of a nanostructured ZnO layer on the carrier recombination and dynamics of chalcopyrite solar cells was studied. Intensity-modulated photocurrent and photovoltage spectroscopy (IMPS and IMVS, respectively) were used for the charge carrier dynamics characterization of two ZnO/In2S3/CuInS2-based solar cells. The charge carrier dynamics on a cell with a ZnO nanorod (ZnO-NR) layer was compared with a similar sample without the nanostructured layer. The IMPS and IMVS responses were measured at different continuous light intensities, and a multitrapping behavior was observed. Higher recombination and transport times were obtained for the cell including the NR layer. Moreover, an enhancement in the charge carrier collection efficiency was observed for the cell with the NR additional layer. The increased surface-to-volume ratio of the NR layer and the passivation of defects in the ZnO/In2S3 interface could be associated with the observed charge dynamics enhancement.

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Appendix
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Literature
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Metadata
Title
Influence of a nanostructured ZnO layer on the carrier recombination and dynamics in chalcopyrite solar cells
Authors
C. Javier Pereyra
Yesica Di Iorio
Mariana Berruet
Marcela Vazquez
Ricardo E. Marotti
Publication date
02-03-2020
Publisher
Springer US
Published in
Journal of Materials Science / Issue 23/2020
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-020-04501-0

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