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- Title
New Donor–Acceptor Random Terpolymers with Wide Absorption Spectra of 300–1000 nm for Photovoltaic Applications.
- Authors
Keshtov, M. L.; Kuklin, S. A.; Zou, Y.; Khokhlov, A. R.; Konstantinov, I. O.; Ostapov, I. E.; Makhaeva, E. E.; Sharma, G. D.
- Abstract
The development of conjugated polymers with wide absorption spectra is imperative to achieve high efficiency in polymer solar cells (PSCs), since most of these polymers usually absorb only a limited range of the solar spectrum. Random terpolymers consisting of three blocks (one electron-donor and two electron-acceptor blocks) are promising p-type polymers for PSCs, because the inclusion of a third block in the polymer macromolecules provides a synergistic effect of physical properties, such as absorption capacity, charge transfer, HOMO/LUMO energy levels, and photovoltaic characteristics. In this regard, we have developed and synthesized random terpolymers consisting of two different chromophores (DPP and BFCTP) with complementary absorption spectra as co-acceptor blocks in conjugated donor–acceptor (D–A) copolymers. Random copolymers exhibit both broad absorption and low HOMO levels favoring short-circuit current and idle voltage in PSCs. It is expected that new terpolymers consisting of one electron-donor unit and two electron-acceptor moieties will make a significant contribution to the development of highly efficient PSCs. It is expected that new ternary copolymers consisting of one electron-donor unit and two electron-acceptor fragments will make a significant contribution to the development of high-performance PSСs.
- Subjects
ABSORPTION spectra; CONJUGATED polymers; BLOCK copolymers; RANDOM copolymers; SOLAR cell efficiency; SOLAR spectra
- Publication
Doklady Physical Chemistry, 2020, Vol 495, Issue 2, p196
- ISSN
0012-5016
- Publication type
Article
- DOI
10.1134/S0012501620120040