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Charge transfer in poly(3-octylthiophene) modified by fullerene derivativeстатья
Информация о цитировании статьи получена из
Scopus
Дата последнего поиска статьи во внешних источниках: 8 июня 2022 г.
- Авторы: Krinichnyi V.I., Demianets Y.N., Mironova S.A.
- Журнал: Physica E
- Том: 40
- Номер: 8
- Год издания: 2008
- Первая страница: 2829
- Последняя страница: 2833
- DOI: 10.1016/j.physe.2008.01.002
- Аннотация: Magnetic, relaxation and electronic dynamic parameters of paramagnetic centers stabilized in an initial and fullerene-modified poly(3-octylthiophene) (P3OT) were studied at the 3-cm (9.7GHz) waveband EPR in wide (77-320K) temperature region. Both the systems demonstrate sum spectrum of localized and mobile polarons, which contribution depends on polymer treatment. Both spin susceptibility and spin-spin relaxation rate was shown to govern by dipole-dipole interaction of the mobile polarons. The spin-lattice and spin-spin relaxation times were determined separately by using the steady-state saturation method. It was shown that the treatment of the P3OT sample with PCBM molecules leads to the decrease in activation energy of spin susceptibility, dipole-dipole interaction, and interchain diffusion. This is accompanied with the acceleration of spin relaxation and increase in the system dimensionality.
- Добавил в систему: Криничный Виктор Иванович