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Published March 2012 | public
Journal Article

GaAs Passivation with Trioctylphosphine Sulfide for Enhanced Solar Cell Efficiency and Durability


A chemical passivation strategy to improve durability in GaAs solar cells is described. Trioctylphosphine sulfide (TOP:S) is identified among a promising new class of surfactants for enhanced performance and longevity of GaAs cells. Light-beam induced current measurements (LBIC) and other studies show treatment with TOP:S mitigates efficiency losses at unpassivated sidewalls and induced fractures.

Additional Information

© 2012 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. Issue published online: 13 Mar. 2012; Article first published online: 7 Feb. 2012; Manuscript Received: 3 Nov. 2011. This work was supported by the Department of Energy under grant DE-FG02-07ER46405 and the DARPA Portable Photovoltaics program. We thank Dr. Brendan Kayes and Alta Devices for providing the GaAs solar cells used in this study.

Additional details

August 22, 2023
October 17, 2023