Effect of Interlayer Insertion into Bilayer Organic Solar Cells.
Cooper, Richard Dylan.
2011
- Organic solar cells show potential to be an alternative to conventional inorganic solar cells due to the possibility for lower processing costs, flexibility, and large-scale fabrication techniques. The goal of this project was to increase the efficiency of bilayer organic solar cells by increasing the maximum operating voltage. In this study, it was hypothesized that the addition of an insulating ... read morematerial into the active layer could boost the open-circuit voltage. A thin layer of either bathocuproine or lithium fluoride (LiF) was inserted at the interface of both copper phthalocyanine/fullerene (CuPc/C60) and poly(3-hexylthiophene)/fullerene (P3HT/C60) donor/acceptor organic solar cells. The insertion of LiF at the P3HT/C60 interface increased the open-circuit voltage by 11.7% without a substantial reduction in the short-circuit current density. The other modified active layers did not show an improvement in overall solar cell performance. Active layer surface morphology was examined using tapping mode atomic force microscopy. The higher open-circuit voltage of the P3HT/LiF/C60 device may be attributed to unique morphological changes in the active layer or other energetic effects.read less
- ID:
- gm80j6066
- Component ID:
- tufts:UA005.012.014.00001
- To Cite:
- TARC Citation Guide EndNote
- Usage:
- Detailed Rights
