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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 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.
Please use this url to cite or link to this publication:
author
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
external identifiers
  • wos:000255105000047
  • scopus:44049083200
ISSN
1932-7447
DOI
10.1021/jp710184r
language
English
LU publication?
yes
id
46b04cd9-8386-4458-b829-81776a537e4d (old id 1206391)
date added to LUP
2008-08-28 15:45:47
date last changed
2017-09-03 03:46:48
@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},
  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},
  volume       = {112},
  year         = {2008},
}