Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
80034 | Solar Energy Materials and Solar Cells | 2009 | 5 Pages |
Abstract
We investigate the characteristics of airbrush spray coated polymer solar cells based on a mixture of poly(3-hexyl thiophene) and (6,6)-phenyl C61C61-butyric acid methyl ester, deposited with different settings. We show smooth films yielding spray coated solar cells with power conversion efficiencies of 2.8%. In addition, we find that the spray coating technique allows the realization of polymer solar cells with a structural gradient in the vertical direction: the femtoliter scale droplets, distinctive of spray coating, dry very rapidly and subsequent layers can be deposited from the same solvent, without completely dissolving the underlying layers.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
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Authors
Claudio Girotto, Barry P. Rand, Jan Genoe, Paul Heremans,