Spin Localization in Poly(3-Dodecylthiophen)/PCBM Composite |
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| Authors: | V I Krinichnyi A A Balakai |
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| Institution: | (1) Institute of Problems of Chemical Physics RAS, N.N. Semenov Avenue 1, Chernogolovka, 142432, Russia;(2) Institute of Energy Problems for Chemical Physics (Branch) RAS, N.N. Semenov Avenue 1, Chernogolovka, 142432, Russia |
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| Abstract: | Charge carriers photoinduced in poly(3-dodecylthiophene)/(6,6]-phenyl-C61-butanoic acid methyl ester) (P3DDT/PCBM) by photons with the energy of 1.88–2.75 eV were investigated by X-band light-induced
electron paramagnetic resonance (LEPR). LEPR spectra were attributed to non-interacting polarons and methanofullerene anion
radicals with different magnetic and relaxation parameters. A part of these charge carriers are trapped in a polymer matrix.
Paramagnetic susceptibility and spin–spin relaxation of mobile charge carriers were shown to follow the activation law. |
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