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Inkjet printed P3HT:PCBM solar cells: A new solvent system approach

: Lange, A.; Wegener, M.; Boeffel, C.; Fischer, B.; Wedel, A.

Bommisetty, V. ; Materials Research Society -MRS-:
Organic photovoltaics and related electronics: from excitons to devices : From excitons to devices; symposium held April 5 - 9, 2010, San Francisco, California, U.S.A.; Symposium GG, "Nanoscale Charge Transport in Excitonic Solar Cells", Symposium HH, "Organic Photovoltaic Science and Technology", and Symposium II, "Materials Science and Charge Transport in Organic Electronics" were held ... at the 2010 MRS spring meeting
Warrendale, Pa.: MRS, 2010 (Materials Research Society Symposium Proceedings 1270)
ISBN: 978-1-605-11247-3
ISSN: 0272-9172
Materials Research Society (Spring Meeting) <2010, San Francisco/Calif.>
Symposium GG "Nanoscale Charge Transport in Excitonic Solar Cells" <2010 San Francisco/Calif.>
Symposium HH "Organic Photovoltaic Science and Technology" <2010, San Francisco/Calif.>
Symposium II "Materials Science and Charge Transport in Organic Electronics" <2010, San Francisco/Calif.>
Fraunhofer IAP ()

Inkjet printing and spin coating were used to deposit polymer passive layers and polymer:small molecular active layers consisting of poly(3-hexyl thiophene) and phenyl-C61 butyric acid methyl ester for organic solar cells. An inkjet solvent system consisting of chlorobenzene and trichlorobenzene was used where the ink's surface tension and viscosity were 32.5 mN/m and 1.0 to 1.5 mPa*s, respectively. Devices with inkjet printed passive and active layers were found to have slightly higher efficiency values with respect to solar cells with spin coated layers after pre-annealing. Additionally, it was determined that the achievable open circuit voltage of solar cells with inkjet printed or spin coated passive and active layers was within the range of 0.20 to 0.55 V.