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Issue 20, 2017
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Scalable perovskite/CIGS thin-film solar module with power conversion efficiency of 17.8%

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Abstract

All-thin film perovskite/CIGS multijunction solar modules, combining a semi-transparent perovskite top solar module stacked on a CIGS bottom solar module, are a promising route to surpass the efficiency limits of single-junction thin-film solar modules. In this work, we present a scalable thin-film perovskite/CIGS photovoltaic module with an area of 3.76 cm2 and a power conversion efficiency of 17.8%. Our prototype outperforms both the record single-junction perovskite solar module of the same area as well as the reference CIGS solar module. The presented perovskite/CIGS thin-film multijunction solar module makes use of the “4-terminal architecture”, which stacks the perovskite solar module in superstrate configuration on top of the CIGS solar module in substrate configuration. Both submodules apply a scalable interconnection scheme that can accommodate scale-up towards square meter scale thin-film multijunction solar modules. In order to identify the future potential of the presented stacked perovskite/CIGS thin-film solar module, we quantify the various losses in the presented prototype and identify the key challenges of this technology towards very high power conversion efficiencies.

Graphical abstract: Scalable perovskite/CIGS thin-film solar module with power conversion efficiency of 17.8%

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Publication details

The article was received on 23 Feb 2017, accepted on 19 Apr 2017 and first published on 19 Apr 2017


Article type: Paper
DOI: 10.1039/C7TA01651D
Citation: J. Mater. Chem. A, 2017,5, 9897-9906
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    Scalable perovskite/CIGS thin-film solar module with power conversion efficiency of 17.8%

    U. W. Paetzold, M. Jaysankar, R. Gehlhaar, E. Ahlswede, S. Paetel, W. Qiu, J. Bastos, L. Rakocevic, B. S. Richards, T. Aernouts, M. Powalla and J. Poortmans, J. Mater. Chem. A, 2017, 5, 9897
    DOI: 10.1039/C7TA01651D

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