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Charge carrier dynamics in alternating polyfluorene copolymer: Fullerene blends probed by terahertz spectroscopy

Nemec, Hynek LU ; Nienhuys, Han-Kwang ; Zhang, Fengling ; Inganas, Olle ; Yartsev, Arkady LU orcid and Sundström, Villy LU (2008) In Journal of Physical Chemistry C 112(16). p.6558-6563
Abstract
Time-resolved terahertz spectroscopy is used for investigation of photoinduced charge carrier dynamics in blends of a polyfluorene copolymer (poly [2,7-(9,9-dioctyl-fluorene)-alt-5,5-(4',7'-di-2-thienyl-2',1',3-benzothi adiazole)]) and an electron acceptor ([6,6]-phenyl-C-61-butyric acid methyl ester). The transient far-infrared response appears instantaneously after photoexcitation. We show that the transient conductivity spectrum is dominated by two major contributions: response of separated charge carriers and response of coupled polaron pairs.
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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physical Chemistry C
volume
112
issue
16
pages
6558 - 6563
publisher
The American Chemical Society (ACS)
external identifiers
  • wos:000255105000047
  • scopus:44049083200
ISSN
1932-7447
DOI
10.1021/jp710184r
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Physics (S) (011001060)
id
46b04cd9-8386-4458-b829-81776a537e4d (old id 1206391)
date added to LUP
2016-04-01 12:05:54
date last changed
2022-01-26 22:46:19
@article{46b04cd9-8386-4458-b829-81776a537e4d,
  abstract     = {{Time-resolved terahertz spectroscopy is used for investigation of photoinduced charge carrier dynamics in blends of a polyfluorene copolymer (poly [2,7-(9,9-dioctyl-fluorene)-alt-5,5-(4',7'-di-2-thienyl-2',1',3-benzothi adiazole)]) and an electron acceptor ([6,6]-phenyl-C-61-butyric acid methyl ester). The transient far-infrared response appears instantaneously after photoexcitation. We show that the transient conductivity spectrum is dominated by two major contributions: response of separated charge carriers and response of coupled polaron pairs.}},
  author       = {{Nemec, Hynek and Nienhuys, Han-Kwang and Zhang, Fengling and Inganas, Olle and Yartsev, Arkady and Sundström, Villy}},
  issn         = {{1932-7447}},
  language     = {{eng}},
  number       = {{16}},
  pages        = {{6558--6563}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{Journal of Physical Chemistry C}},
  title        = {{Charge carrier dynamics in alternating polyfluorene copolymer: Fullerene blends probed by terahertz spectroscopy}},
  url          = {{http://dx.doi.org/10.1021/jp710184r}},
  doi          = {{10.1021/jp710184r}},
  volume       = {{112}},
  year         = {{2008}},
}