Refine
Has Fulltext
- yes (1)
Is part of the Bibliography
- yes (1)
Year of publication
- 2012 (1)
Document Type
- Doctoral Thesis (1) (remove)
Language
- English (1)
Keywords
- Merocyanin (1)
- Merocyanine (1)
- organic photovoltaics (1)
- organische Photovoltaik (1)
- organische Solarzelle (1)
Institute
In this study, a double-donor concept is used to improve the performance of thermally evaporated merocyanine(s)/C60 bulk heterojunction (BHJ) solar cells. It is shown that the co-evaporation of two merocyanine dyes with absorption bands at ~ 500 nm (SW dye) and ~ 650 nm (LW dye), respectively, together with C60 fullerene results in an improvement of open-circuit voltage (VOC), short-circuit current (JSC) as well as total power conversion efficiency (PCE) compared to the best single-donor cell. The enhancement of JSC is attributed to a higher photon harvesting efficiency of the mixed-donor devices due to a better spectral coverage.