Nano Letters, volume 5, issue 5, pages 865-871

Highly efficient multiple exciton generation in colloidal PbSe and PbS quantum dots.

Randy Ellingson ¹

Matthew C Beard ¹

Justin C. Johnson ¹

Pingrong Yu ¹

Olga I Mićić ¹

Arthur J. Nozik ¹

Andrew Shabaev ¹

A.L. Efros ¹

Hide authors affiliations Show authors affiliations: 1 affiliation

Center for Basic Sciences, National Renewable Energy Laborarory, Golden, Colorado 80401, Department of Chemistry, University of Colorado, Boulder, Colorado 80309, and Naval Research Laboratory, Washington, D.C. 20375 |

Publication type: Journal Article

Publication date: 2005-03-30

American Chemical Society (ACS)

Journal: Nano Letters

Quartile SCImago

Quartile WOS

Impact factor: 10.8

ISSN: 15306984, 15306992

DOI: 10.1021/nl0502672

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General Chemistry

Condensed Matter Physics

General Materials Science

Mechanical Engineering

Bioengineering

Abstract

We report ultra-efficient multiple exciton generation (MEG) for single photon absorption in colloidal PbSe and PbS quantum dots (QDs). We employ transient absorption spectroscopy and present measurement data acquired for both intraband as well as interband probe energies. Quantum yields of 300% indicate the creation, on average, of three excitons per absorbed photon for PbSe QDs at photon energies that are four times the QD energy gap. Results indicate that the threshold photon energy for MEG in QDs is twice the lowest exciton absorption energy. We find that the biexciton effect, which shifts the transition energy for absorption of a second photon, influences the early time transient absorption data and may contribute to a modulation observed when probing near the lowest interband transition. We present experimental and theoretical values of the size-dependent interband transition energies for PbSe QDs. We present experimental and theoretical values of the size-dependent interband transition energies for PbSe QDs, and we also introduce a new model for MEG based on the coherent superposition of multiple excitonic states.

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Citations by journals

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Journal of Materials Chemistry A	Journal of Materials Chemistry A, 19, 1.28% Journal of Materials Chemistry A 19 publications, 1.28%
Journal of Physical Chemistry B	Journal of Physical Chemistry B, 18, 1.22% Journal of Physical Chemistry B 18 publications, 1.22%
Nature Communications	Nature Communications, 17, 1.15% Nature Communications 17 publications, 1.15%
RSC Advances	RSC Advances, 17, 1.15% RSC Advances 17 publications, 1.15%
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Physical Review Letters	Physical Review Letters, 15, 1.01% Physical Review Letters 15 publications, 1.01%
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Electrochimica Acta	Electrochimica Acta, 15, 1.01% Electrochimica Acta 15 publications, 1.01%
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Chemical Physics Letters	Chemical Physics Letters, 10, 0.68% Chemical Physics Letters 10 publications, 0.68%
Chemistry of Materials	Chemistry of Materials, 10, 0.68% Chemistry of Materials 10 publications, 0.68%
Accounts of Chemical Research	Accounts of Chemical Research, 10, 0.68% Accounts of Chemical Research 10 publications, 0.68%
	20 40 60 80 100 120

Citations by publishers

	50 100 150 200 250 300 350 400 450
American Chemical Society (ACS)	American Chemical Society (ACS), 411, 27.75% American Chemical Society (ACS) 411 publications, 27.75%
Elsevier	Elsevier, 227, 15.33% Elsevier 227 publications, 15.33%
Royal Society of Chemistry (RSC)	Royal Society of Chemistry (RSC), 153, 10.33% Royal Society of Chemistry (RSC) 153 publications, 10.33%
Wiley	Wiley, 119, 8.04% Wiley 119 publications, 8.04%
Springer Nature	Springer Nature, 106, 7.16% Springer Nature 106 publications, 7.16%
American Institute of Physics (AIP)	American Institute of Physics (AIP), 90, 6.08% American Institute of Physics (AIP) 90 publications, 6.08%
American Physical Society (APS)	American Physical Society (APS), 67, 4.52% American Physical Society (APS) 67 publications, 4.52%
IOP Publishing	IOP Publishing, 54, 3.65% IOP Publishing 54 publications, 3.65%
IEEE	IEEE, 21, 1.42% IEEE 21 publications, 1.42%
Multidisciplinary Digital Publishing Institute (MDPI)	Multidisciplinary Digital Publishing Institute (MDPI), 18, 1.22% Multidisciplinary Digital Publishing Institute (MDPI) 18 publications, 1.22%
Taylor & Francis	Taylor & Francis, 17, 1.15% Taylor & Francis 17 publications, 1.15%
Cambridge University Press	Cambridge University Press, 10, 0.68% Cambridge University Press 10 publications, 0.68%
Optical Society of America	Optical Society of America, 10, 0.68% Optical Society of America 10 publications, 0.68%
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SPIE	SPIE, 8, 0.54% SPIE 8 publications, 0.54%
Pleiades Publishing	Pleiades Publishing, 8, 0.54% Pleiades Publishing 8 publications, 0.54%
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Uspekhi Fizicheskikh Nauk Journal	Uspekhi Fizicheskikh Nauk Journal, 4, 0.27% Uspekhi Fizicheskikh Nauk Journal 4 publications, 0.27%
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Materials Research Society	Materials Research Society, 4, 0.27% Materials Research Society 4 publications, 0.27%
Japan Society of Applied Physics	Japan Society of Applied Physics, 4, 0.27% Japan Society of Applied Physics 4 publications, 0.27%
American Association for the Advancement of Science (AAAS)	American Association for the Advancement of Science (AAAS), 4, 0.27% American Association for the Advancement of Science (AAAS) 4 publications, 0.27%
The Royal Society	The Royal Society, 3, 0.2% The Royal Society 3 publications, 0.2%
The Electrochemical Society	The Electrochemical Society, 3, 0.2% The Electrochemical Society 3 publications, 0.2%
Physical Society of Japan	Physical Society of Japan, 3, 0.2% Physical Society of Japan 3 publications, 0.2%
Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii	Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii, 3, 0.2% Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii 3 publications, 0.2%
Annual Reviews	Annual Reviews, 3, 0.2% Annual Reviews 3 publications, 0.2%
American Vacuum Society	American Vacuum Society, 2, 0.14% American Vacuum Society 2 publications, 0.14%
	50 100 150 200 250 300 350 400 450

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Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
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Ellingson R. et al. Highly efficient multiple exciton generation in colloidal PbSe and PbS quantum dots. // Nano Letters. 2005. Vol. 5. No. 5. pp. 865-871.

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Ellingson R., Beard M. C., Johnson J. C., Yu P., Mićić O. I., Nozik A. J., Shabaev A., Efros A. Highly efficient multiple exciton generation in colloidal PbSe and PbS quantum dots. // Nano Letters. 2005. Vol. 5. No. 5. pp. 865-871.

RIS |

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RIS Copy

TY - JOUR

DO - 10.1021/nl0502672

UR - https://doi.org/10.1021/nl0502672

TI - Highly efficient multiple exciton generation in colloidal PbSe and PbS quantum dots.

T2 - Nano Letters

AU - Yu, Pingrong

AU - Mićić, Olga I

AU - Shabaev, Andrew

AU - Ellingson, Randy

AU - Beard, Matthew C

AU - Johnson, Justin C.

AU - Nozik, Arthur J.

AU - Efros, A.L.

PY - 2005

DA - 2005/03/30 00:00:00

PB - American Chemical Society (ACS)

SP - 865-871

IS - 5

VL - 5

SN - 1530-6984

SN - 1530-6992

ER -

BibTex |

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BibTex Copy

@article{2005_Ellingson,

author = {Pingrong Yu and Olga I Mićić and Andrew Shabaev and Randy Ellingson and Matthew C Beard and Justin C. Johnson and Arthur J. Nozik and A.L. Efros},

title = {Highly efficient multiple exciton generation in colloidal PbSe and PbS quantum dots.},

journal = {Nano Letters},

year = {2005},

volume = {5},

publisher = {American Chemical Society (ACS)},

month = {mar},

url = {https://doi.org/10.1021/nl0502672},

number = {5},

pages = {865--871},

doi = {10.1021/nl0502672}

}

MLA

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MLA Copy

Ellingson, Randy, et al. “Highly efficient multiple exciton generation in colloidal PbSe and PbS quantum dots..” Nano Letters, vol. 5, no. 5, Mar. 2005, pp. 865-871. https://doi.org/10.1021/nl0502672.

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Publisher

American Chemical Society (ACS)

Journal

Nano Letters

Quartile SCImago

Quartile WOS

Impact factor

10.8

ISSN

15306984 (Print)
15306992 (Electronic)