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Issue 48, 2013
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Improved uniformity in high-performance organic photovoltaics enabled by (3-aminopropyl)triethoxysilane cathode functionalization

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Abstract

Organic photovoltaics have the potential to serve as lightweight, low-cost, mechanically flexible solar cells. However, losses in efficiency as laboratory cells are scaled up to the module level have to date impeded large scale deployment. Here, we report that a 3-aminopropyltriethoxysilane (APTES) cathode interfacial treatment significantly enhances performance reproducibility in inverted high-efficiency PTB7:PC71BM organic photovoltaic cells, as demonstrated by the fabrication of 100 APTES-treated devices versus 100 untreated controls. The APTES-treated devices achieve a power conversion efficiency of 8.08 ± 0.12% with histogram skewness of −0.291, whereas the untreated controls achieve 7.80 ± 0.26% with histogram skewness of −1.86. By substantially suppressing the interfacial origins of underperforming cells, the APTES treatment offers a pathway for fabricating large-area modules with high spatial performance uniformity.

Graphical abstract: Improved uniformity in high-performance organic photovoltaics enabled by (3-aminopropyl)triethoxysilane cathode functionalization

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Publication details

The article was received on 06 Nov 2013, accepted on 06 Nov 2013 and first published on 08 Nov 2013


Article type: Paper
DOI: 10.1039/C3CP54623C
Citation: Phys. Chem. Chem. Phys., 2013,15, 20966-20972

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    Improved uniformity in high-performance organic photovoltaics enabled by (3-aminopropyl)triethoxysilane cathode functionalization

    K. A. Luck, T. A. Shastry, S. Loser, G. Ogien, T. J. Marks and M. C. Hersam, Phys. Chem. Chem. Phys., 2013, 15, 20966
    DOI: 10.1039/C3CP54623C

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