The photovoltaic effect and charge carrier mobility in layered compositions of bithiophene or related rotaxane copolymer with C70 fullerene derivative
- Authors: Kostromin S.V.1, Malov V.V.2, Tameev A.R.2, Bronnikov S.V.1, Farcas A.3
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Affiliations:
- Institute of Macromolecular Compounds
- Frumkin Institute of Physical Chemistry and Electrochemistry
- Petru Poni Institute of Macromolecular Chemistry
- Issue: Vol 43, No 2 (2017)
- Pages: 173-176
- Section: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/203373
- DOI: https://doi.org/10.1134/S1063785017020079
- ID: 203373
Cite item
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 (PC70BM). 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.
About the authors
S. V. Kostromin
Institute of Macromolecular Compounds
Author for correspondence.
Email: k-serg-v@mail.ru
Russian Federation, St. Petersburg, 199004
V. V. Malov
Frumkin Institute of Physical Chemistry and Electrochemistry
Email: k-serg-v@mail.ru
Russian Federation, Moscow, 119071
A. R. Tameev
Frumkin Institute of Physical Chemistry and Electrochemistry
Email: k-serg-v@mail.ru
Russian Federation, Moscow, 119071
S. V. Bronnikov
Institute of Macromolecular Compounds
Email: k-serg-v@mail.ru
Russian Federation, St. Petersburg, 199004
A. Farcas
Petru Poni Institute of Macromolecular Chemistry
Email: k-serg-v@mail.ru
Romania, Iasi, 700487