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13.3% efficient solution deposited Cu(In,Ga)Se2 solar cells processed with different sodium salt sources

descriptionPublicationkeyboard_double_arrow_right Article , Journal 27 Nov 2015 Italy Publisher:WileyJournal:Progress in Photovoltaics: Research and Applications, volume 24, pages 749-759 (issn: 1062-7995, eissn: 1099-159X,

Authors: Jessica de Wild; Phillip J. Dale; Erika V.C. Robert; Diego Colombara; Nathalie Valle; Martin Schütze; Markus Widenmeyer; +3 Authors

doi: 10.1002/pip.2721

handle: 11567/939882

13.3% efficient solution deposited Cu(In,Ga)Se2 solar cells processed with different sodium salt sources

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Abstract

AbstractIn this work, we obtain the highest reported power conversion efficiency (13.3%) for sulfur‐free CIGSe solar cells by solution processing. Intentional sodium incorporation is achieved directly by dissolving sodium salts in the ink. The effect on solar cell properties of three sodium sources is investigated: NaCl, NaHCO2, and NaSCN. A comparison is made with absorbers grown on soda‐lime glass substrates and in the absence of sodium sources. The incorporation via sodium salts yields significantly better results, which is attributed to enhanced‐sodium availability. A comparison with identically annealed sputtered metal precursor layers capable of delivering 15.1% module efficiency suggests that the cell results are limited by the selenization procedure. Copyright © 2015 John Wiley & Sons, Ltd.

Country

Italy

Related Organizations

Robert Bosch (Germany)
Germany
University of Luxembourg
Luxembourg
Robert Bosch (Germany)
Germany
Luxembourg Institute of Science and Technology
Luxembourg
University of Genoa
Italy

Keywords

CIGSe; liquid film coating; sodium incorporation; sodium salts; true solution; Electronic, Optical and Magnetic Materials; Renewable Energy, Sustainability and the Environment; Condensed Matter Physics; Electrical and Electronic Engineering

Impact byBIP!

	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	23
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 10%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 10%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 10%