Nano Letters, volume 8, issue 10, pages 3521-3524
The Trouble with TOPO; Identification of Adventitious Impurities Beneficial to the Growth of Cadmium Selenide Quantum Dots, Rods, and Wires
Publication type: Journal Article
Publication date: 2008-08-29
Journal:
Nano Letters
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 10.8
ISSN: 15306984, 15306992
General Chemistry
Condensed Matter Physics
General Materials Science
Mechanical Engineering
Bioengineering
Abstract
Tri-n-octylphosphine oxide (TOPO) is a commonly used solvent for nanocrystal synthesis. Commercial TOPO samples contain varying amounts of phosphorus-containing impurities, some of which significantly influence nanocrystal growth. Consequently, nanocrystal syntheses often give irreproducible results with different batches of TOPO solvent. In this study, we identify TOPO impurities by (31)P NMR, and correlate their presence with the outcomes of CdSe nanocrystal syntheses. We subsequently add the active impurity species, one by one, to purified TOPO to confirm their influence on nanocrystal syntheses. In this manner, di-n-octylphosphine oxide (DOPO) is shown to assist CdSe quantum-dot growth; di-n-octylphosphinic acid (DOPA) and mono-n-octylphosphinic acid (MOPA) are shown to assist CdSe quantum-rod growth, and DOPA is shown to assist CdSe quantum-wire growth. (The TOPO impurity n-octylphosphonic acid, OPA, has been previously shown to assist quantum-rod growth.) The beneficial impurities are prepared on multigram scales and can be added to recrystallized TOPO to provide reproducible synthetic results.
Top-30
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1 publication, 0.62%
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1 publication, 0.62%
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1 publication, 0.62%
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1 publication, 0.62%
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1 publication, 0.62%
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Citations by publishers
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American Chemical Society (ACS)
97 publications, 60.25%
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Royal Society of Chemistry (RSC)
17 publications, 10.56%
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Wiley
14 publications, 8.7%
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Elsevier
10 publications, 6.21%
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Springer Nature
6 publications, 3.73%
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IOP Publishing
3 publications, 1.86%
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American Vacuum Society
2 publications, 1.24%
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Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii
2 publications, 1.24%
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Frontiers Media S.A.
1 publication, 0.62%
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Cambridge University Press
1 publication, 0.62%
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Pleiades Publishing
1 publication, 0.62%
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Taylor & Francis
1 publication, 0.62%
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IGI Global
1 publication, 0.62%
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- We do not take into account publications without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Wang F., Tang R., Buhro W. The Trouble with TOPO; Identification of Adventitious Impurities Beneficial to the Growth of Cadmium Selenide Quantum Dots, Rods, and Wires // Nano Letters. 2008. Vol. 8. No. 10. pp. 3521-3524.
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Wang F., Tang R., Buhro W. The Trouble with TOPO; Identification of Adventitious Impurities Beneficial to the Growth of Cadmium Selenide Quantum Dots, Rods, and Wires // Nano Letters. 2008. Vol. 8. No. 10. pp. 3521-3524.
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TY - JOUR
DO - 10.1021/nl801692g
UR - https://doi.org/10.1021/nl801692g
TI - The Trouble with TOPO; Identification of Adventitious Impurities Beneficial to the Growth of Cadmium Selenide Quantum Dots, Rods, and Wires
T2 - Nano Letters
AU - Wang, Fudong
AU - Tang, Rui
AU - Buhro, W.E.
PY - 2008
DA - 2008/08/29 00:00:00
PB - American Chemical Society (ACS)
SP - 3521-3524
IS - 10
VL - 8
SN - 1530-6984
SN - 1530-6992
ER -
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@article{2008_Wang,
author = {Fudong Wang and Rui Tang and W.E. Buhro},
title = {The Trouble with TOPO; Identification of Adventitious Impurities Beneficial to the Growth of Cadmium Selenide Quantum Dots, Rods, and Wires},
journal = {Nano Letters},
year = {2008},
volume = {8},
publisher = {American Chemical Society (ACS)},
month = {aug},
url = {https://doi.org/10.1021/nl801692g},
number = {10},
pages = {3521--3524},
doi = {10.1021/nl801692g}
}
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Wang, Fudong, et al. “The Trouble with TOPO; Identification of Adventitious Impurities Beneficial to the Growth of Cadmium Selenide Quantum Dots, Rods, and Wires.” Nano Letters, vol. 8, no. 10, Aug. 2008, pp. 3521-3524. https://doi.org/10.1021/nl801692g.