Journal of the American Chemical Society, volume 135, issue 14, pages 5278-5281
Steric-Hindrance-Driven Shape Transition in PbS Quantum Dots: Understanding Size-Dependent Stability
Publication type: Journal Article
Publication date: 2013-03-27
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 15
ISSN: 00027863, 15205126
General Chemistry
Catalysis
Biochemistry
Colloid and Surface Chemistry
Abstract
Ambient stability of colloidal nanocrystal quantum dots (QDs) is imperative for low-cost, high-efficiency QD photovoltaics. We synthesized air-stable, ultrasmall PbS QDs with diameter (D) down to 1.5 nm, and found an abrupt transition at D ≈ 4 nm in the air stability as the QD size was varied from 1.5 to 7.5 nm. X-ray photoemission spectroscopy measurements and density functional theory calculations reveal that the stability transition is closely associated with the shape transition of oleate-capped QDs from octahedron to cuboctahedron, driven by steric hindrance and thus size-dependent surface energy of oleate-passivated Pb-rich QD facets. This microscopic understanding of the surface chemistry on ultrasmall QDs, up to a few nanometers, should be very useful for precisely and accurately controlling physicochemical properties of colloidal QDs such as doping polarity, carrier mobility, air stability, and hot-carrier dynamics for solar cell applications.
Top-30
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6 publications, 1.95%
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6 publications, 1.95%
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4 publications, 1.3%
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4 publications, 1.3%
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4 publications, 1.3%
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3 publications, 0.98%
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3 publications, 0.98%
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3 publications, 0.98%
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3 publications, 0.98%
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3 publications, 0.98%
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ACS Omega
3 publications, 0.98%
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Citations by publishers
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120
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American Chemical Society (ACS)
120 publications, 39.09%
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Wiley
62 publications, 20.2%
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Royal Society of Chemistry (RSC)
44 publications, 14.33%
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Elsevier
26 publications, 8.47%
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Springer Nature
22 publications, 7.17%
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American Institute of Physics (AIP)
10 publications, 3.26%
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IEEE
5 publications, 1.63%
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Multidisciplinary Digital Publishing Institute (MDPI)
4 publications, 1.3%
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American Physical Society (APS)
2 publications, 0.65%
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IOP Publishing
2 publications, 0.65%
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Japan Society of Applied Physics
2 publications, 0.65%
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Korean Ceramic Society
1 publication, 0.33%
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Science in China Press
1 publication, 0.33%
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Korean Chemical Society
1 publication, 0.33%
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Korean Society of Industrial Engineering Chemistry
1 publication, 0.33%
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Walter de Gruyter
1 publication, 0.33%
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Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii
1 publication, 0.33%
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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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Choi H. et al. Steric-Hindrance-Driven Shape Transition in PbS Quantum Dots: Understanding Size-Dependent Stability // Journal of the American Chemical Society. 2013. Vol. 135. No. 14. pp. 5278-5281.
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Choi H., Ko J., Kim Y. H., Jeong S. Steric-Hindrance-Driven Shape Transition in PbS Quantum Dots: Understanding Size-Dependent Stability // Journal of the American Chemical Society. 2013. Vol. 135. No. 14. pp. 5278-5281.
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TY - JOUR
DO - 10.1021/ja400948t
UR - https://doi.org/10.1021/ja400948t
TI - Steric-Hindrance-Driven Shape Transition in PbS Quantum Dots: Understanding Size-Dependent Stability
T2 - Journal of the American Chemical Society
AU - Ko, Jae-Hyeon
AU - Choi, Hyekyoung
AU - Kim, Y H
AU - Jeong, So-Hee
PY - 2013
DA - 2013/03/27 00:00:00
PB - American Chemical Society (ACS)
SP - 5278-5281
IS - 14
VL - 135
SN - 0002-7863
SN - 1520-5126
ER -
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@article{2013_Choi,
author = {Jae-Hyeon Ko and Hyekyoung Choi and Y H Kim and So-Hee Jeong},
title = {Steric-Hindrance-Driven Shape Transition in PbS Quantum Dots: Understanding Size-Dependent Stability},
journal = {Journal of the American Chemical Society},
year = {2013},
volume = {135},
publisher = {American Chemical Society (ACS)},
month = {mar},
url = {https://doi.org/10.1021/ja400948t},
number = {14},
pages = {5278--5281},
doi = {10.1021/ja400948t}
}
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MLA
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Choi, Hyekyoung, et al. “Steric-Hindrance-Driven Shape Transition in PbS Quantum Dots: Understanding Size-Dependent Stability.” Journal of the American Chemical Society, vol. 135, no. 14, Mar. 2013, pp. 5278-5281. https://doi.org/10.1021/ja400948t.