Studies of photoinduced charge transfer in conjugated polymer-fullerene composites by light-induced ESR

V. Dyakonov; G. Zoriantis; M. Scharber; C.J. Brabec; R.A.J. Janssen; J.C. Hummelen; N.S. Sariciftci

doi:10.1063/1.56467

Studies of photoinduced charge transfer in conjugated polymer-fullerene composites by light-induced ESR

V. Dyakonov, G. Zoriantis, M. Scharber, C.J. Brabec, R.A.J. Janssen, J.C. Hummelen, N.S. Sariciftci

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic

Abstract

In this work we present comparative studies of the photoinduced electron transfer (PIT) in a number of conjugated polymer/fullerene composites and in pure components by using light-induced electron spin resonance. PIT from the polymer onto fullerene in the composites results in the appearance of two LESR lines: i) g=2.0025,
g=2.0025,
attributed to the positive polaron on the polymer chain and ii) g=1.9995
g=1.9995
originating from the fullerene anion-radical. These signals have different spin-lattice relaxation times with different temperature dependencies, the low field line possessing the longer relaxation time. The amount of light induced charges is proportional to the square root of the excitation light intensity, which indicates bimolecular recombination of polarons. Both lines have reversible light-induced ESR components and persistent light-induced contribution attributed to trapped polarons.

Original language	English
Title of host publication	Electronic Properties of Novel Materials - Progress in Molecular Nanostructures
Editors	H. Kuzmany, J. Fink, M. Mehring, S. Roth
Place of Publication	Woodbury
Publisher	American Institute of Physics
Pages	257-260
ISBN (Print)	1-56396-808-8
DOIs	https://doi.org/10.1063/1.56467
Publication status	Published - 1998

Publication series

Name	AIP Conference series
Volume	442
ISSN (Print)	0094-243X

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10.1063/1.56467

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Dyakonov, V., Zoriantis, G., Scharber, M., Brabec, C. J., Janssen, R. A. J., Hummelen, J. C., & Sariciftci, N. S. (1998). Studies of photoinduced charge transfer in conjugated polymer-fullerene composites by light-induced ESR. In H. Kuzmany, J. Fink, M. Mehring, & S. Roth (Eds.), Electronic Properties of Novel Materials - Progress in Molecular Nanostructures (pp. 257-260). (AIP Conference series; Vol. 442). American Institute of Physics. https://doi.org/10.1063/1.56467

Dyakonov, V. ; Zoriantis, G. ; Scharber, M. et al. / Studies of photoinduced charge transfer in conjugated polymer-fullerene composites by light-induced ESR. Electronic Properties of Novel Materials - Progress in Molecular Nanostructures. editor / H. Kuzmany ; J. Fink ; M. Mehring ; S. Roth. Woodbury : American Institute of Physics, 1998. pp. 257-260 (AIP Conference series).

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title = "Studies of photoinduced charge transfer in conjugated polymer-fullerene composites by light-induced ESR",

abstract = "In this work we present comparative studies of the photoinduced electron transfer (PIT) in a number of conjugated polymer/fullerene composites and in pure components by using light-induced electron spin resonance. PIT from the polymer onto fullerene in the composites results in the appearance of two LESR lines: i) g=2.0025, g=2.0025, attributed to the positive polaron on the polymer chain and ii) g=1.9995 g=1.9995 originating from the fullerene anion-radical. These signals have different spin-lattice relaxation times with different temperature dependencies, the low field line possessing the longer relaxation time. The amount of light induced charges is proportional to the square root of the excitation light intensity, which indicates bimolecular recombination of polarons. Both lines have reversible light-induced ESR components and persistent light-induced contribution attributed to trapped polarons.",

author = "V. Dyakonov and G. Zoriantis and M. Scharber and C.J. Brabec and R.A.J. Janssen and J.C. Hummelen and N.S. Sariciftci",

year = "1998",

doi = "10.1063/1.56467",

language = "English",

isbn = "1-56396-808-8",

series = "AIP Conference series",

publisher = "American Institute of Physics",

pages = "257--260",

editor = "H. Kuzmany and J. Fink and M. Mehring and S. Roth",

booktitle = "Electronic Properties of Novel Materials - Progress in Molecular Nanostructures",

address = "United States",

}

Dyakonov, V, Zoriantis, G, Scharber, M, Brabec, CJ, Janssen, RAJ, Hummelen, JC & Sariciftci, NS 1998, Studies of photoinduced charge transfer in conjugated polymer-fullerene composites by light-induced ESR. in H Kuzmany, J Fink, M Mehring & S Roth (eds), Electronic Properties of Novel Materials - Progress in Molecular Nanostructures. AIP Conference series, vol. 442, American Institute of Physics, Woodbury, pp. 257-260. https://doi.org/10.1063/1.56467

Studies of photoinduced charge transfer in conjugated polymer-fullerene composites by light-induced ESR. / Dyakonov, V.; Zoriantis, G.; Scharber, M. et al.
Electronic Properties of Novel Materials - Progress in Molecular Nanostructures. ed. / H. Kuzmany; J. Fink; M. Mehring; S. Roth. Woodbury: American Institute of Physics, 1998. p. 257-260 (AIP Conference series; Vol. 442).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic

TY - GEN

T1 - Studies of photoinduced charge transfer in conjugated polymer-fullerene composites by light-induced ESR

AU - Dyakonov, V.

AU - Zoriantis, G.

AU - Scharber, M.

AU - Brabec, C.J.

AU - Janssen, R.A.J.

AU - Hummelen, J.C.

AU - Sariciftci, N.S.

PY - 1998

Y1 - 1998

N2 - In this work we present comparative studies of the photoinduced electron transfer (PIT) in a number of conjugated polymer/fullerene composites and in pure components by using light-induced electron spin resonance. PIT from the polymer onto fullerene in the composites results in the appearance of two LESR lines: i) g=2.0025, g=2.0025, attributed to the positive polaron on the polymer chain and ii) g=1.9995 g=1.9995 originating from the fullerene anion-radical. These signals have different spin-lattice relaxation times with different temperature dependencies, the low field line possessing the longer relaxation time. The amount of light induced charges is proportional to the square root of the excitation light intensity, which indicates bimolecular recombination of polarons. Both lines have reversible light-induced ESR components and persistent light-induced contribution attributed to trapped polarons.

AB - In this work we present comparative studies of the photoinduced electron transfer (PIT) in a number of conjugated polymer/fullerene composites and in pure components by using light-induced electron spin resonance. PIT from the polymer onto fullerene in the composites results in the appearance of two LESR lines: i) g=2.0025, g=2.0025, attributed to the positive polaron on the polymer chain and ii) g=1.9995 g=1.9995 originating from the fullerene anion-radical. These signals have different spin-lattice relaxation times with different temperature dependencies, the low field line possessing the longer relaxation time. The amount of light induced charges is proportional to the square root of the excitation light intensity, which indicates bimolecular recombination of polarons. Both lines have reversible light-induced ESR components and persistent light-induced contribution attributed to trapped polarons.

U2 - 10.1063/1.56467

DO - 10.1063/1.56467

M3 - Conference contribution

SN - 1-56396-808-8

T3 - AIP Conference series

SP - 257

EP - 260

BT - Electronic Properties of Novel Materials - Progress in Molecular Nanostructures

A2 - Kuzmany, H.

A2 - Fink, J.

A2 - Mehring, M.

A2 - Roth, S.

PB - American Institute of Physics

CY - Woodbury

ER -

Dyakonov V, Zoriantis G, Scharber M, Brabec CJ, Janssen RAJ, Hummelen JC et al. Studies of photoinduced charge transfer in conjugated polymer-fullerene composites by light-induced ESR. In Kuzmany H, Fink J, Mehring M, Roth S, editors, Electronic Properties of Novel Materials - Progress in Molecular Nanostructures. Woodbury: American Institute of Physics. 1998. p. 257-260. (AIP Conference series). doi: 10.1063/1.56467

Studies of photoinduced charge transfer in conjugated polymer-fullerene composites by light-induced ESR

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