title: Photochemistry of P3HT and PC60BM in toluene solution: Evidence of T-T energy transfer
metadata.name: dc.contributor.author
metadata.value: Lukina, Ekaterina A.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Pozdnyakov, Ivan P.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Mereshchenko, Andrey S.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Uvarov, Mikhail N.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Kulik, Leonid V.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2016-04-08T08:58:14Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2016-04-08T08:58:14Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2015-10-01
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Lukina, E.A.; Pozdnyakov, I.P.; Mereshchenko, A.S.; Uvarov, M.N.; Kulik, L.V.  J. Photochem. Photobiol. A: Chem. 2015, 311, 193–198.
metadata.lang: en_GB
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/1980
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: Photochemical properties of regioregular poly(3-hexylthiophene) (P3HT), fullerene derivative [6,6]phenyl C61-butyric acid methyl ester (PC60BM) and their 1:1 mixture in argon-saturated toluene solution were studied by optical spectroscopy and nanosecond laser flash photolysis (lambda(ex) = 532 nm). Separate excitation of components leads to formation of corresponding triplet state of fullerene ((PC60BM)-P-3*, lambda(max) = 710 nm, epsilon(max) = 22400 M-1 cm(-1), phi(T) = 0.29) and polymer ((3)P3HT*, lambda(max) = 850 nm, epsilon(750 nm) <= 10(5) M-1 cm(-1), phi(T) >= 0.19). Excitation of P3HT/PC60BM mixture leads to effective energy transfer from (3)P3HT* to the ground state of fullerene with a formation of (PC60BM)-P-3*. No evidence of ion-radical P3HT(+center dot) and PC60BM-center dot formation was obtained though electron transfer between (3)P3HT* and (PC60BM)-P-1 is energetically favorable in studied system. Presumably ultrafast back electron transfer takes place in geminate P3HT(+center dot)/PC60BM-center dot pair with regeneration of the ground states of P3HT and PC60BM. (C) 2015 Elsevier B.V. All rights reserved.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: en
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Photochemistry of P3HT and PC60BM in toluene solution: Evidence of T-T energy transfer
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: JPhotochemPhotobioA2015_Photochemistry of P3HT and PC60BM in toluene solution.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/1980/1/JPhotochemPhotobioA2015_Photochemistry%20of%20P3HT%20and%20PC60BM%20in%20toluene%20solution.pdf
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