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

Hyekyoung Choi ^{1, 2}

Jae-Hyeon Ko ³

Y H Kim ³

So-Hee Jeong ^{1, 2}

Hide authors affiliations Show authors affiliations: 3 affiliations

Nanomechanical Systems Research Division, Korea Institute of Machinery and Materials, Daejeon 305-343, Republic of Korea |

Department of Nanomechatronics, University of Science and Technology, Daejeon 305-350, Republic of Korea |

Graduate School of Nanoscience and Technology (WCU), KAIST, Daejeon 305-701, Republic of Korea |

Publication type: Journal Article

Publication date: 2013-03-27

American Chemical Society (ACS)

Journal: Journal of the American Chemical Society

Quartile SCImago

Quartile WOS

Impact factor: 15

ISSN: 00027863, 15205126

DOI: 10.1021/ja400948t

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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.

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Citations by journals

	5 10 15 20 25
Chemistry of Materials	Chemistry of Materials, 24, 7.82% Chemistry of Materials 24 publications, 7.82%
Journal of Physical Chemistry Letters	Journal of Physical Chemistry Letters, 15, 4.89% Journal of Physical Chemistry Letters 15 publications, 4.89%
ACS applied materials & interfaces	ACS applied materials & interfaces, 15, 4.89% ACS applied materials & interfaces 15 publications, 4.89%
Journal of Physical Chemistry C	Journal of Physical Chemistry C, 14, 4.56% Journal of Physical Chemistry C 14 publications, 4.56%
Advanced Materials	Advanced Materials, 14, 4.56% Advanced Materials 14 publications, 4.56%
Nanoscale	Nanoscale, 12, 3.91% Nanoscale 12 publications, 3.91%
Advanced Energy Materials	Advanced Energy Materials, 7, 2.28% Advanced Energy Materials 7 publications, 2.28%
Journal of the American Chemical Society	Journal of the American Chemical Society, 7, 2.28% Journal of the American Chemical Society 7 publications, 2.28%
Journal of Materials Chemistry A	Journal of Materials Chemistry A, 7, 2.28% Journal of Materials Chemistry A 7 publications, 2.28%
Nature Communications	Nature Communications, 6, 1.95% Nature Communications 6 publications, 1.95%
Advanced Functional Materials	Advanced Functional Materials, 6, 1.95% Advanced Functional Materials 6 publications, 1.95%
Small	Small, 6, 1.95% Small 6 publications, 1.95%
Nano Letters	Nano Letters, 6, 1.95% Nano Letters 6 publications, 1.95%
ACS Energy Letters	ACS Energy Letters, 6, 1.95% ACS Energy Letters 6 publications, 1.95%
Nano Research	Nano Research, 5, 1.63% Nano Research 5 publications, 1.63%
Chemical Reviews	Chemical Reviews, 5, 1.63% Chemical Reviews 5 publications, 1.63%
RSC Advances	RSC Advances, 5, 1.63% RSC Advances 5 publications, 1.63%
Applied Physics Letters	Applied Physics Letters, 4, 1.3% Applied Physics Letters 4 publications, 1.3%
Journal of Alloys and Compounds	Journal of Alloys and Compounds, 4, 1.3% Journal of Alloys and Compounds 4 publications, 1.3%
Angewandte Chemie - International Edition	Angewandte Chemie - International Edition, 4, 1.3% Angewandte Chemie - International Edition 4 publications, 1.3%
Angewandte Chemie	Angewandte Chemie, 4, 1.3% Angewandte Chemie 4 publications, 1.3%
ACS Photonics	ACS Photonics, 4, 1.3% ACS Photonics 4 publications, 1.3%
ACS Applied Nano Materials	ACS Applied Nano Materials, 4, 1.3% ACS Applied Nano Materials 4 publications, 1.3%
Chemical Science	Chemical Science, 4, 1.3% Chemical Science 4 publications, 1.3%
Advanced Materials Technologies	Advanced Materials Technologies, 3, 0.98% Advanced Materials Technologies 3 publications, 0.98%
Journal of Chemical Physics	Journal of Chemical Physics, 3, 0.98% Journal of Chemical Physics 3 publications, 0.98%
Applied Surface Science	Applied Surface Science, 3, 0.98% Applied Surface Science 3 publications, 0.98%
Solar RRL	Solar RRL, 3, 0.98% Solar RRL 3 publications, 0.98%
ACS Nano	ACS Nano, 3, 0.98% ACS Nano 3 publications, 0.98%
ACS Omega	ACS Omega, 3, 0.98% ACS Omega 3 publications, 0.98%
	5 10 15 20 25

Citations by publishers

	20 40 60 80 100 120
American Chemical Society (ACS)	American Chemical Society (ACS), 120, 39.09% American Chemical Society (ACS) 120 publications, 39.09%
Wiley	Wiley, 62, 20.2% Wiley 62 publications, 20.2%
Royal Society of Chemistry (RSC)	Royal Society of Chemistry (RSC), 44, 14.33% Royal Society of Chemistry (RSC) 44 publications, 14.33%
Elsevier	Elsevier, 26, 8.47% Elsevier 26 publications, 8.47%
Springer Nature	Springer Nature, 22, 7.17% Springer Nature 22 publications, 7.17%
American Institute of Physics (AIP)	American Institute of Physics (AIP), 10, 3.26% American Institute of Physics (AIP) 10 publications, 3.26%
IEEE	IEEE, 5, 1.63% IEEE 5 publications, 1.63%
Multidisciplinary Digital Publishing Institute (MDPI)	Multidisciplinary Digital Publishing Institute (MDPI), 4, 1.3% Multidisciplinary Digital Publishing Institute (MDPI) 4 publications, 1.3%
American Physical Society (APS)	American Physical Society (APS), 2, 0.65% American Physical Society (APS) 2 publications, 0.65%
IOP Publishing	IOP Publishing, 2, 0.65% IOP Publishing 2 publications, 0.65%
Japan Society of Applied Physics	Japan Society of Applied Physics, 2, 0.65% Japan Society of Applied Physics 2 publications, 0.65%
Korean Ceramic Society	Korean Ceramic Society, 1, 0.33% Korean Ceramic Society 1 publication, 0.33%
Science in China Press	Science in China Press, 1, 0.33% Science in China Press 1 publication, 0.33%
Korean Chemical Society	Korean Chemical Society, 1, 0.33% Korean Chemical Society 1 publication, 0.33%
Korean Society of Industrial Engineering Chemistry	Korean Society of Industrial Engineering Chemistry, 1, 0.33% Korean Society of Industrial Engineering Chemistry 1 publication, 0.33%
Walter de Gruyter	Walter de Gruyter, 1, 0.33% Walter de Gruyter 1 publication, 0.33%
Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii	Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii, 1, 0.33% Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii 1 publication, 0.33%
	20 40 60 80 100 120

We do not take into account publications without a DOI.
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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.

GOST all authors (up to 50) Copy

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.

RIS |

Cite this

RIS Copy

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 -

BibTex |

Cite this

BibTex Copy

@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}

}

MLA

Cite this

MLA Copy

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.

Found error?

Publisher

American Chemical Society (ACS)

Journal

Journal of the American Chemical Society

Quartile SCImago

Quartile WOS

Impact factor

ISSN

00027863 (Print)
15205126 (Electronic)