Journal of Physical Chemistry C, volume 113, issue 23, pages 9986-9992
Electrostatic Formation of Quantum Dot/J-aggregate FRET Pairs in Solution
Jonathan E. Halpert
1
,
Jonathan R. Tischler
1
,
Gautham Nair
1
,
Brian J Walker
1
,
Wenhao Liu
1
,
Vladimir Bulović
1
,
Publication type: Journal Article
Publication date: 2009-05-13
Journal:
Journal of Physical Chemistry C
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor: 3.7
ISSN: 19327447, 19327455
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Physical and Theoretical Chemistry
General Energy
Abstract
We report the formation and photonic properties of CdSe/ZnS quantum dot (QD)/J-aggregate donor−acceptor Forster resonant energy transfer (FRET) pairs that are electrostatically bound and dispersed in water. Assembly occurs when the positively charged dye, 1,1′,3,3′-tetraethyl-5,5′,6,6′-tetrachlorobenzimidazolocarbocyanine (TTBC), binds electrostatically to QDs that are coated with a negatively charged amphiphilic polymer. QD/J-aggregate FRET pairs display the broadband absorption in the visible and the ultraviolet (UV) part of the spectrum typical of quantum dots, along with the narrow emission linewidths characteristic of J-band emitters (∼12 nm full width at half-maximum). We use dynamic light scattering, transmission electron microscopy, photoluminescence spectroscopy, and photoluminescence lifetimes to conclude that the size of the aggregates formed in the presence of QDs is between 1−6 nm. We find the FRET radius of the QD/J-aggregate to be 5.1 nm. We further demonstrate electrostatic binding as a ge...
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Halpert J. E. et al. Electrostatic Formation of Quantum Dot/J-aggregate FRET Pairs in Solution // Journal of Physical Chemistry C. 2009. Vol. 113. No. 23. pp. 9986-9992.
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Halpert J. E., Tischler J. R., Nair G., Walker B. J., Liu W., Bulović V., Bawendi M. G. Electrostatic Formation of Quantum Dot/J-aggregate FRET Pairs in Solution // Journal of Physical Chemistry C. 2009. Vol. 113. No. 23. pp. 9986-9992.
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TY - JOUR
DO - 10.1021/jp8099169
UR - https://doi.org/10.1021/jp8099169
TI - Electrostatic Formation of Quantum Dot/J-aggregate FRET Pairs in Solution
T2 - Journal of Physical Chemistry C
AU - Tischler, Jonathan R.
AU - Nair, Gautham
AU - Walker, Brian J
AU - Liu, Wenhao
AU - Halpert, Jonathan E.
AU - Bulović, Vladimir
AU - Bawendi, Moungi G.
PY - 2009
DA - 2009/05/13 00:00:00
PB - American Chemical Society (ACS)
SP - 9986-9992
IS - 23
VL - 113
SN - 1932-7447
SN - 1932-7455
ER -
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@article{2009_Halpert,
author = {Jonathan R. Tischler and Gautham Nair and Brian J Walker and Wenhao Liu and Jonathan E. Halpert and Vladimir Bulović and Moungi G. Bawendi},
title = {Electrostatic Formation of Quantum Dot/J-aggregate FRET Pairs in Solution},
journal = {Journal of Physical Chemistry C},
year = {2009},
volume = {113},
publisher = {American Chemical Society (ACS)},
month = {may},
url = {https://doi.org/10.1021/jp8099169},
number = {23},
pages = {9986--9992},
doi = {10.1021/jp8099169}
}
Cite this
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Halpert, Jonathan E., et al. “Electrostatic Formation of Quantum Dot/J-aggregate FRET Pairs in Solution.” Journal of Physical Chemistry C, vol. 113, no. 23, May. 2009, pp. 9986-9992. https://doi.org/10.1021/jp8099169.