ACS Nano, volume 3, issue 10, pages 3023-3030

Size-dependent optical properties of colloidal PbS quantum dots.

Iwan Moreels ¹

Karel Lambert ¹

Dries Smeets ²

David De Muynck ³

Tom Nollet ¹

Jose Luri Martins ⁴

Frank Vanhaecke ³

Andre Vantomme ²

Jing Li ⁵

Guy Allan ⁵

Zeger Hens ¹

Hide authors affiliations Show authors affiliations: 5 affiliations

Physics and Chemistry of Nanostructures, Ghent University, Krijgslaan 281-S12, B-9000 Ghent, Belgium |

Institute for Nuclear and Radiation Physics and INPAC, Celestijnenlaan 200D, K.U. Leuven, B-3001 Leuven, Belgium |

Laboratory of Analytical Chemistry, Ghent University, Krijgslaan 281-S12, B-9000 Ghent, Belgium |

⁴

NMR and Structure Analysis Unit, Ghent University, Krijgslaan 281-S4bis, B-9000 Ghent, Belgium |

⁵

Institut d’Electronique, de Microélectronique et de Nanotechnologie, F-59652 Villeneuve d’Ascq Cedex, France |

Publication type: Journal Article

Publication date: 2009-09-25

American Chemical Society (ACS)

Journal: ACS Nano

Quartile SCImago

Quartile WOS

Impact factor: 17.1

ISSN: 19360851, 1936086X

DOI: 10.1021/nn900863a

Copy DOI

General Physics and Astronomy

General Materials Science

General Engineering

Abstract

We quantitatively investigate the size-dependent optical properties of colloidal PbS nanocrystals or quantum dots (Qdots), by combining the Qdot absorbance spectra with detailed elemental analysis of the Qdot suspensions. At high energies, the molar extinction coefficient epsilon increases with the Qdot volume d(3) and agrees with theoretical calculations using the Maxwell-Garnett effective medium theory and bulk values for the Qdot dielectric function. This demonstrates that quantum confinement has no influence on epsilon in this spectral range, and it provides an accurate method to calculate the Qdot concentration. Around the band gap, epsilon only increases with d(1.3), and values are comparable to the epsilon of PbSe Qdots. The data are related to the oscillator strength f(if) of the band gap transition and results agree well with theoretical tight-binding calculations, predicting a linear dependence of f(if) on d. For both PbS and PbSe Qdots, the exciton lifetime tau is calculated from f(if). We find values ranging between 1 and 3 mus, in agreement with experimental literature data from time-resolved luminescence spectroscopy. Our results provide a thorough general framework to calculate and understand the optical properties of suspended colloidal quantum dots. Most importantly, it highlights the significance of the local field factor in these systems.

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Citations by journals

	10 20 30 40 50 60
Journal of Physical Chemistry C	Journal of Physical Chemistry C, 60, 6.03% Journal of Physical Chemistry C 60 publications, 6.03%
Chemistry of Materials	Chemistry of Materials, 47, 4.72% Chemistry of Materials 47 publications, 4.72%
ACS Nano	ACS Nano, 42, 4.22% ACS Nano 42 publications, 4.22%
Nanoscale	Nanoscale, 32, 3.22% Nanoscale 32 publications, 3.22%
ACS applied materials & interfaces	ACS applied materials & interfaces, 29, 2.91% ACS applied materials & interfaces 29 publications, 2.91%
Journal of Physical Chemistry Letters	Journal of Physical Chemistry Letters, 27, 2.71% Journal of Physical Chemistry Letters 27 publications, 2.71%
Nano Letters	Nano Letters, 24, 2.41% Nano Letters 24 publications, 2.41%
Journal of Materials Chemistry C	Journal of Materials Chemistry C, 19, 1.91% Journal of Materials Chemistry C 19 publications, 1.91%
Journal of the American Chemical Society	Journal of the American Chemical Society, 18, 1.81% Journal of the American Chemical Society 18 publications, 1.81%
Advanced Materials	Advanced Materials, 17, 1.71% Advanced Materials 17 publications, 1.71%
Advanced Functional Materials	Advanced Functional Materials, 15, 1.51% Advanced Functional Materials 15 publications, 1.51%
Nanotechnology	Nanotechnology, 15, 1.51% Nanotechnology 15 publications, 1.51%
Journal of Materials Chemistry A	Journal of Materials Chemistry A, 15, 1.51% Journal of Materials Chemistry A 15 publications, 1.51%
Applied Physics Letters	Applied Physics Letters, 14, 1.41% Applied Physics Letters 14 publications, 1.41%
Journal of Alloys and Compounds	Journal of Alloys and Compounds, 14, 1.41% Journal of Alloys and Compounds 14 publications, 1.41%
Journal of Applied Physics	Journal of Applied Physics, 12, 1.21% Journal of Applied Physics 12 publications, 1.21%
RSC Advances	RSC Advances, 12, 1.21% RSC Advances 12 publications, 1.21%
Physical Review B	Physical Review B, 11, 1.11% Physical Review B 11 publications, 1.11%
Journal of Materials Science: Materials in Electronics	Journal of Materials Science: Materials in Electronics, 11, 1.11% Journal of Materials Science: Materials in Electronics 11 publications, 1.11%
ACS Photonics	ACS Photonics, 11, 1.11% ACS Photonics 11 publications, 1.11%
Physical Chemistry Chemical Physics	Physical Chemistry Chemical Physics, 11, 1.11% Physical Chemistry Chemical Physics 11 publications, 1.11%
Journal of Chemical Physics	Journal of Chemical Physics, 10, 1.01% Journal of Chemical Physics 10 publications, 1.01%
Scientific Reports	Scientific Reports, 10, 1.01% Scientific Reports 10 publications, 1.01%
Solar Energy Materials and Solar Cells	Solar Energy Materials and Solar Cells, 10, 1.01% Solar Energy Materials and Solar Cells 10 publications, 1.01%
ACS Applied Nano Materials	ACS Applied Nano Materials, 10, 1.01% ACS Applied Nano Materials 10 publications, 1.01%
Small	Small, 9, 0.9% Small 9 publications, 0.9%
CrystEngComm	CrystEngComm, 8, 0.8% CrystEngComm 8 publications, 0.8%
Chemical Reviews	Chemical Reviews, 8, 0.8% Chemical Reviews 8 publications, 0.8%
Chemical Society Reviews	Chemical Society Reviews, 8, 0.8% Chemical Society Reviews 8 publications, 0.8%
	10 20 30 40 50 60

Citations by publishers

	50 100 150 200 250 300 350
American Chemical Society (ACS)	American Chemical Society (ACS), 309, 31.06% American Chemical Society (ACS) 309 publications, 31.06%
Elsevier	Elsevier, 155, 15.58% Elsevier 155 publications, 15.58%
Royal Society of Chemistry (RSC)	Royal Society of Chemistry (RSC), 133, 13.37% Royal Society of Chemistry (RSC) 133 publications, 13.37%
Wiley	Wiley, 119, 11.96% Wiley 119 publications, 11.96%
Springer Nature	Springer Nature, 68, 6.83% Springer Nature 68 publications, 6.83%
American Institute of Physics (AIP)	American Institute of Physics (AIP), 41, 4.12% American Institute of Physics (AIP) 41 publications, 4.12%
IOP Publishing	IOP Publishing, 34, 3.42% IOP Publishing 34 publications, 3.42%
Multidisciplinary Digital Publishing Institute (MDPI)	Multidisciplinary Digital Publishing Institute (MDPI), 20, 2.01% Multidisciplinary Digital Publishing Institute (MDPI) 20 publications, 2.01%
IEEE	IEEE, 15, 1.51% IEEE 15 publications, 1.51%
Optical Society of America	Optical Society of America, 13, 1.31% Optical Society of America 13 publications, 1.31%
American Physical Society (APS)	American Physical Society (APS), 12, 1.21% American Physical Society (APS) 12 publications, 1.21%
Pleiades Publishing	Pleiades Publishing, 10, 1.01% Pleiades Publishing 10 publications, 1.01%
Taylor & Francis	Taylor & Francis, 6, 0.6% Taylor & Francis 6 publications, 0.6%
Cambridge University Press	Cambridge University Press, 5, 0.5% Cambridge University Press 5 publications, 0.5%
American Association for the Advancement of Science (AAAS)	American Association for the Advancement of Science (AAAS), 4, 0.4% American Association for the Advancement of Science (AAAS) 4 publications, 0.4%
SPIE	SPIE, 3, 0.3% SPIE 3 publications, 0.3%
Materials Research Society	Materials Research Society, 3, 0.3% Materials Research Society 3 publications, 0.3%
Hindawi Limited	Hindawi Limited, 3, 0.3% Hindawi Limited 3 publications, 0.3%
Walter de Gruyter	Walter de Gruyter, 2, 0.2% Walter de Gruyter 2 publications, 0.2%
EDP Sciences	EDP Sciences, 1, 0.1% EDP Sciences 1 publication, 0.1%
The Royal Society	The Royal Society, 1, 0.1% The Royal Society 1 publication, 0.1%
The Electrochemical Society	The Electrochemical Society, 1, 0.1% The Electrochemical Society 1 publication, 0.1%
Korean Chemical Society	Korean Chemical Society, 1, 0.1% Korean Chemical Society 1 publication, 0.1%
Korean Society of Industrial Engineering Chemistry	Korean Society of Industrial Engineering Chemistry, 1, 0.1% Korean Society of Industrial Engineering Chemistry 1 publication, 0.1%
Hosokawa Powder Technology Foundation	Hosokawa Powder Technology Foundation, 1, 0.1% Hosokawa Powder Technology Foundation 1 publication, 0.1%
National Academy of Sciences of Ukraine (Co. LTD Ukrinformnauka) (Publications)	National Academy of Sciences of Ukraine (Co. LTD Ukrinformnauka) (Publications), 1, 0.1% National Academy of Sciences of Ukraine (Co. LTD Ukrinformnauka) (Publications) 1 publication, 0.1%
Trans Tech Publications	Trans Tech Publications, 1, 0.1% Trans Tech Publications 1 publication, 0.1%
Annual Reviews	Annual Reviews, 1, 0.1% Annual Reviews 1 publication, 0.1%
Cold Spring Harbor Laboratory	Cold Spring Harbor Laboratory, 1, 0.1% Cold Spring Harbor Laboratory 1 publication, 0.1%
	50 100 150 200 250 300 350

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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GOST Copy

Moreels I. et al. Size-dependent optical properties of colloidal PbS quantum dots. // ACS Nano. 2009. Vol. 3. No. 10. pp. 3023-3030.

GOST all authors (up to 50) Copy

Moreels I., Lambert K., Smeets D., De Muynck D., Nollet T., Martins J. L., Vanhaecke F., Vantomme A., Li J., Allan G., Hens Z. Size-dependent optical properties of colloidal PbS quantum dots. // ACS Nano. 2009. Vol. 3. No. 10. pp. 3023-3030.

RIS |

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RIS Copy

TY - JOUR

DO - 10.1021/nn900863a

UR - https://doi.org/10.1021/nn900863a

TI - Size-dependent optical properties of colloidal PbS quantum dots.

T2 - ACS Nano

AU - Lambert, Karel

AU - Smeets, Dries

AU - De Muynck, David

AU - Nollet, Tom

AU - Allan, Guy

AU - Moreels, Iwan

AU - Martins, Jose Luri

AU - Vanhaecke, Frank

AU - Vantomme, Andre

AU - Li, Jing

AU - Hens, Zeger

PY - 2009

DA - 2009/09/25 00:00:00

PB - American Chemical Society (ACS)

SP - 3023-3030

IS - 10

VL - 3

SN - 1936-0851

SN - 1936-086X

ER -

BibTex |

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BibTex Copy

@article{2009_Moreels,

author = {Karel Lambert and Dries Smeets and David De Muynck and Tom Nollet and Guy Allan and Iwan Moreels and Jose Luri Martins and Frank Vanhaecke and Andre Vantomme and Jing Li and Zeger Hens},

title = {Size-dependent optical properties of colloidal PbS quantum dots.},

journal = {ACS Nano},

year = {2009},

volume = {3},

publisher = {American Chemical Society (ACS)},

month = {sep},

url = {https://doi.org/10.1021/nn900863a},

number = {10},

pages = {3023--3030},

doi = {10.1021/nn900863a}

}

MLA

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MLA Copy

Moreels, Iwan, et al. “Size-dependent optical properties of colloidal PbS quantum dots..” ACS Nano, vol. 3, no. 10, Sep. 2009, pp. 3023-3030. https://doi.org/10.1021/nn900863a.

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Publisher

American Chemical Society (ACS)

Journal

ACS Nano

Quartile SCImago

Quartile WOS

Impact factor

17.1

ISSN

19360851 (Print)
1936086X (Electronic)