We investigate exciton dynamics in isopycnically enriched (6,5)
nanotube-DNA suspensions using femtosecond time-resolved pump-probe
spectroscopy. The ground state recovery is characterized by a t(-0.45)
+/- (0.03) power law behavior, indicative of a one-dimensional
diffusion-limited reaction that is tentatively attributed to
subdiffusive trapping of dark excitons. Spectral transients of bright
(,40 singlet excitons within the Ell and E-22 manifolds exhibit a
photobleach (PB) and a photoabsorption (PA) signal of similar strength.
The PA is blue-shifted with respect to the PB-signal by 7.5 meV and is
attributed to a transition from the dark singlet exciton (0)A(0) + to a
(0)A(0)(-) + (0)A(0)(+) state within the two exciton E-11 manifold.
%0 Journal Article
%1 zhu2007pumpprobe
%A Zhu, Zipeng
%A Crochet, Jared
%A Arnold, Michael S.
%A Hersam, Mark C.
%A Ulbricht, Hendrick
%A Resasco, Daniel
%A Hertel, Tobias
%D 2007
%J JOURNAL OF PHYSICAL CHEMISTRY C
%K imported myown
%N 10
%P 3831-3835
%R 10.1021/jp0669411
%T Pump-probe spectroscopy of exciton dynamics in (6,5) carbon nanotubes
%V 111
%X We investigate exciton dynamics in isopycnically enriched (6,5)
nanotube-DNA suspensions using femtosecond time-resolved pump-probe
spectroscopy. The ground state recovery is characterized by a t(-0.45)
+/- (0.03) power law behavior, indicative of a one-dimensional
diffusion-limited reaction that is tentatively attributed to
subdiffusive trapping of dark excitons. Spectral transients of bright
(,40 singlet excitons within the Ell and E-22 manifolds exhibit a
photobleach (PB) and a photoabsorption (PA) signal of similar strength.
The PA is blue-shifted with respect to the PB-signal by 7.5 meV and is
attributed to a transition from the dark singlet exciton (0)A(0) + to a
(0)A(0)(-) + (0)A(0)(+) state within the two exciton E-11 manifold.
@article{zhu2007pumpprobe,
abstract = {{We investigate exciton dynamics in isopycnically enriched (6,5)
nanotube-DNA suspensions using femtosecond time-resolved pump-probe
spectroscopy. The ground state recovery is characterized by a t(-0.45)
+/- (0.03) power law behavior, indicative of a one-dimensional
diffusion-limited reaction that is tentatively attributed to
subdiffusive trapping of dark excitons. Spectral transients of bright
(,40 singlet excitons within the Ell and E-22 manifolds exhibit a
photobleach (PB) and a photoabsorption (PA) signal of similar strength.
The PA is blue-shifted with respect to the PB-signal by 7.5 meV and is
attributed to a transition from the dark singlet exciton (0)A(0) + to a
(0)A(0)(-) + (0)A(0)(+) state within the two exciton E-11 manifold.}},
added-at = {2021-01-26T13:45:10.000+0100},
author = {Zhu, Zipeng and Crochet, Jared and Arnold, Michael S. and Hersam, Mark C. and Ulbricht, Hendrick and Resasco, Daniel and Hertel, Tobias},
biburl = {https://www.bibsonomy.org/bibtex/2bccdb36d88615b5e3ea701275b61a62c/hertel-group},
doi = {{10.1021/jp0669411}},
eissn = {{1932-7455}},
interhash = {e426865745e6092fbd4d10ff6b898b98},
intrahash = {bccdb36d88615b5e3ea701275b61a62c},
issn = {{1932-7447}},
journal = {{JOURNAL OF PHYSICAL CHEMISTRY C}},
keywords = {imported myown},
month = {{MAR 15}},
number = {{10}},
orcid-numbers = {{Hersam, Mark/0000-0003-4120-1426
/0000-0003-0356-0065}},
pages = {{3831-3835}},
researcherid-numbers = {{Hertel, Tobias/J-4243-2012
Hersam, Mark/B-6739-2009
Hertel, Tobias/D-5805-2013
Hersam, Mark/A-9639-2008
Arnold, Michael/L-9112-2015
Crochet, Jared/C-8488-2011
}},
timestamp = {2021-01-26T13:45:21.000+0100},
title = {{Pump-probe spectroscopy of exciton dynamics in (6,5) carbon nanotubes}},
unique-id = {{ISI:000245006100004}},
volume = {{111}},
year = {{2007}}
}