Abstract
The power conversion efficiency (PCE) of regioregular poly(3- hexylthiophene) (P3HT) and {6,6}-phenyl C61 -butyric acid methylester (PCBM)-based polymer solar cells was increased using an ionic liquid-functionalized carbon nanoparticles (ILCNs) thin film-modified cathode. The PCE of P3HT:PCBM based-polymer solar cells with a conventional aluminum (Al)-only cathode was increased by 20%-30% when the identical devices were made with an ILCNs-modified Al cathode, but its PCE was 10% lower than that of devices with LiF/Al cathode, measured under AM1.5G illumination of 100 mW/cm. The ILCN interlayer approach, however, offers practical advantages to LiF in terms of its solution-processability, which is compatible with low cost, large area, and flexible solar cell fabrication.
Original language | English |
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Article number | 133305 |
Number of pages | 4 |
Journal | Applied Physics Letters |
Volume | 95 |
Issue number | 13 |
DOIs | |
Publication status | Published - Sept 2009 |
Scopus Subject Areas
- Physics and Astronomy (miscellaneous)