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- Title
The photovoltaic effect and charge carrier mobility in layered compositions of bithiophene or related rotaxane copolymer with C fullerene derivative.
- Authors
Kostromin, S.; Malov, V.; Tameev, A.; Bronnikov, S.; Farcas, A.
- Abstract
Organic photovoltaic cells with a bulk heterojunction have been manufactured in which the photoactive layer consists of a mixture of bithiophene copolymer or related rotaxane with a fullerene derivative (PCBM). The mobility of charge carriers in photoactive layers has been determined, the current-voltage characteristics of photovoltaic cells have been measured, and the energy level diagram of cell components has been constructed. It is established that the polyrotaxane component (macrocycle) insulates a part of thiophene fragments of the macromolecule, thus hindering the transport of carriers and leading to large energy losses for exciton dissociation, which results in a decreasing photovoltaic effect.
- Subjects
ROTAXANES; PHOTOVOLTAIC effect; CHARGE carrier mobility; EXCITON theory; ENERGY level diagrams
- Publication
Technical Physics Letters, 2017, Vol 43, Issue 2, p173
- ISSN
1063-7850
- Publication type
Article
- DOI
10.1134/S1063785017020079