Performance of bulk heterojunction photovoltaic devices prepared by airbrush spray deposition

We have used airbrush spray deposition to fabricate organic photovoltaic devices with an active layer composed of a blend of poly(3-hexylthiophene) and [6,6]-phenyl-C61 butyric acid methyl ester. Working devices were prepared in ambient conditions from a variety of common organic solvents; active la...

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Bibliographic Details
Published in:Applied physics letters 2008-01, Vol.92 (3)
Main Authors: Green, R., Morfa, A., Ferguson, A. J., Kopidakis, N., Rumbles, G., Shaheen, S. E.
Format: Article
Language:English
Subjects:
ANNEALING
BUTYRIC ACID
converters
DEPOSITION
EFFICIENCY
electrical properties and parameters
HETEROJUNCTIONS
heterostructures
ILLUMINANCE
MATERIALS SCIENCE,SOLAR ENERGY
ORGANIC SOLVENTS
photovoltaics
polymers
solar cells
spin cast method
spin coating
SUN
THICKNESS
welding
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Summary:We have used airbrush spray deposition to fabricate organic photovoltaic devices with an active layer composed of a blend of poly(3-hexylthiophene) and [6,6]-phenyl-C61 butyric acid methyl ester. Working devices were prepared in ambient conditions from a variety of common organic solvents; active layers prepared from chlorobenzene exhibit improved homogeneity, resulting in narrower distributions of the relevant device parameters. Further studies on devices prepared from chlorobenzene showed that annealing at 120°C for 10min resulted in optimum performance, and that an active layer thickness of 150nm resulted in a maximum efficiency of 2.35% under AM1.5 illumination at 1sun.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2836267