Open Access

Science, volume 334, issue 6062, pages 1530-1533

Peak External Photocurrent Quantum Efficiency Exceeding 100% via MEG in a Quantum Dot Solar Cell

Octavi E Semonin ^{1, 2}

Joseph M. Luther ¹

Sukgeun Choi ¹

Hsiang-yu Chen ¹

Jianbo Gao ^{1, 3}

Arthur J. Nozik ^{1, 4}

Matthew C Beard ¹

Hide authors affiliations Show authors affiliations: 4 affiliations

National Renewable Energy Laboratory, 1617 Cole Boulevard, Golden, CO 80401, USA. |

Department of Physics, University of Colorado, 390 UCB, Boulder, CO 80309, USA. |

Department of Physics and Astronomy, University of Toledo, MS 111, Toledo, OH 43606, USA. |

⁴

Department of Chemistry and Biochemistry, University of Colorado, 215 UCB, Boulder, CO 80309, USA |

Publication type: Journal Article

Publication date: 2011-12-16

American Association for the Advancement of Science (AAAS)

Journal: Science

Quartile SCImago

Quartile WOS

Impact factor: 56.9

ISSN: 00368075, 10959203

DOI: 10.1126/science.1209845

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Multidisciplinary

Abstract

An experimental solar cell productively uses an extra fraction of high-energy light typically lost as heat. Multiple exciton generation (MEG) is a process that can occur in semiconductor nanocrystals, or quantum dots (QDs), whereby absorption of a photon bearing at least twice the bandgap energy produces two or more electron-hole pairs. Here, we report on photocurrent enhancement arising from MEG in lead selenide (PbSe) QD-based solar cells, as manifested by an external quantum efficiency (the spectrally resolved ratio of collected charge carriers to incident photons) that peaked at 114 ± 1% in the best device measured. The associated internal quantum efficiency (corrected for reflection and absorption losses) was 130%. We compare our results with transient absorption measurements of MEG in isolated PbSe QDs and find reasonable agreement. Our findings demonstrate that MEG charge carriers can be collected in suitably designed QD solar cells, providing ample incentive to better understand MEG within isolated and coupled QDs as a research path to enhancing the efficiency of solar light harvesting technologies.

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Citations by journals

	10 20 30 40 50 60
Journal of Physical Chemistry C	Journal of Physical Chemistry C, 60, 4.09% Journal of Physical Chemistry C 60 publications, 4.09%
Nano Letters	Nano Letters, 54, 3.68% Nano Letters 54 publications, 3.68%
Journal of Physical Chemistry Letters	Journal of Physical Chemistry Letters, 50, 3.41% Journal of Physical Chemistry Letters 50 publications, 3.41%
ACS Nano	ACS Nano, 48, 3.27% ACS Nano 48 publications, 3.27%
Journal of Materials Chemistry A	Journal of Materials Chemistry A, 45, 3.07% Journal of Materials Chemistry A 45 publications, 3.07%
Advanced Materials	Advanced Materials, 37, 2.52% Advanced Materials 37 publications, 2.52%
Journal of the American Chemical Society	Journal of the American Chemical Society, 32, 2.18% Journal of the American Chemical Society 32 publications, 2.18%
RSC Advances	RSC Advances, 32, 2.18% RSC Advances 32 publications, 2.18%
Scientific Reports	Scientific Reports, 31, 2.11% Scientific Reports 31 publications, 2.11%
Nanoscale	Nanoscale, 31, 2.11% Nanoscale 31 publications, 2.11%
Physical Chemistry Chemical Physics	Physical Chemistry Chemical Physics, 25, 1.71% Physical Chemistry Chemical Physics 25 publications, 1.71%
Applied Physics Letters	Applied Physics Letters, 24, 1.64% Applied Physics Letters 24 publications, 1.64%
Physical Review B	Physical Review B, 24, 1.64% Physical Review B 24 publications, 1.64%
ACS applied materials & interfaces	ACS applied materials & interfaces, 24, 1.64% ACS applied materials & interfaces 24 publications, 1.64%
Chemistry of Materials	Chemistry of Materials, 23, 1.57% Chemistry of Materials 23 publications, 1.57%
Nature Communications	Nature Communications, 22, 1.5% Nature Communications 22 publications, 1.5%
Nano Energy	Nano Energy, 21, 1.43% Nano Energy 21 publications, 1.43%
Advanced Functional Materials	Advanced Functional Materials, 19, 1.3% Advanced Functional Materials 19 publications, 1.3%
Solar Energy Materials and Solar Cells	Solar Energy Materials and Solar Cells, 18, 1.23% Solar Energy Materials and Solar Cells 18 publications, 1.23%
Electrochimica Acta	Electrochimica Acta, 17, 1.16% Electrochimica Acta 17 publications, 1.16%
Advanced Energy Materials	Advanced Energy Materials, 17, 1.16% Advanced Energy Materials 17 publications, 1.16%
ACS Energy Letters	ACS Energy Letters, 17, 1.16% ACS Energy Letters 17 publications, 1.16%
Energy and Environmental Science	Energy and Environmental Science, 15, 1.02% Energy and Environmental Science 15 publications, 1.02%
Journal of Applied Physics	Journal of Applied Physics, 14, 0.95% Journal of Applied Physics 14 publications, 0.95%
Nanotechnology	Nanotechnology, 14, 0.95% Nanotechnology 14 publications, 0.95%
Solar Energy	Solar Energy, 14, 0.95% Solar Energy 14 publications, 0.95%
Journal of Materials Chemistry C	Journal of Materials Chemistry C, 14, 0.95% Journal of Materials Chemistry C 14 publications, 0.95%
Journal of Materials Science: Materials in Electronics	Journal of Materials Science: Materials in Electronics, 13, 0.89% Journal of Materials Science: Materials in Electronics 13 publications, 0.89%
Journal of Power Sources	Journal of Power Sources, 12, 0.82% Journal of Power Sources 12 publications, 0.82%
	10 20 30 40 50 60

Citations by publishers

	50 100 150 200 250 300 350 400
American Chemical Society (ACS)	American Chemical Society (ACS), 378, 25.78% American Chemical Society (ACS) 378 publications, 25.78%
Elsevier	Elsevier, 249, 16.98% Elsevier 249 publications, 16.98%
Royal Society of Chemistry (RSC)	Royal Society of Chemistry (RSC), 210, 14.32% Royal Society of Chemistry (RSC) 210 publications, 14.32%
Wiley	Wiley, 174, 11.87% Wiley 174 publications, 11.87%
Springer Nature	Springer Nature, 154, 10.5% Springer Nature 154 publications, 10.5%
American Institute of Physics (AIP)	American Institute of Physics (AIP), 58, 3.96% American Institute of Physics (AIP) 58 publications, 3.96%
IOP Publishing	IOP Publishing, 37, 2.52% IOP Publishing 37 publications, 2.52%
American Physical Society (APS)	American Physical Society (APS), 36, 2.46% American Physical Society (APS) 36 publications, 2.46%
Multidisciplinary Digital Publishing Institute (MDPI)	Multidisciplinary Digital Publishing Institute (MDPI), 23, 1.57% Multidisciplinary Digital Publishing Institute (MDPI) 23 publications, 1.57%
IEEE	IEEE, 17, 1.16% IEEE 17 publications, 1.16%
SPIE	SPIE, 8, 0.55% SPIE 8 publications, 0.55%
Japan Society of Applied Physics	Japan Society of Applied Physics, 6, 0.41% Japan Society of Applied Physics 6 publications, 0.41%
Taylor & Francis	Taylor & Francis, 5, 0.34% Taylor & Francis 5 publications, 0.34%
Optical Society of America	Optical Society of America, 5, 0.34% Optical Society of America 5 publications, 0.34%
American Vacuum Society	American Vacuum Society, 4, 0.27% American Vacuum Society 4 publications, 0.27%
Annual Reviews	Annual Reviews, 4, 0.27% Annual Reviews 4 publications, 0.27%
Pleiades Publishing	Pleiades Publishing, 3, 0.2% Pleiades Publishing 3 publications, 0.2%
Uspekhi Fizicheskikh Nauk Journal	Uspekhi Fizicheskikh Nauk Journal, 3, 0.2% Uspekhi Fizicheskikh Nauk Journal 3 publications, 0.2%
Cambridge University Press	Cambridge University Press, 3, 0.2% Cambridge University Press 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%
American Association for the Advancement of Science (AAAS)	American Association for the Advancement of Science (AAAS), 3, 0.2% American Association for the Advancement of Science (AAAS) 3 publications, 0.2%
Chinese Physical Society	Chinese Physical Society, 3, 0.2% Chinese Physical Society 3 publications, 0.2%
The Royal Society	The Royal Society, 2, 0.14% The Royal Society 2 publications, 0.14%
World Scientific	World Scientific, 2, 0.14% World Scientific 2 publications, 0.14%
The Electrochemical Society	The Electrochemical Society, 2, 0.14% The Electrochemical Society 2 publications, 0.14%
Materials Research Society	Materials Research Society, 2, 0.14% Materials Research Society 2 publications, 0.14%
Hindawi Limited	Hindawi Limited, 2, 0.14% Hindawi Limited 2 publications, 0.14%
Beilstein-Institut	Beilstein-Institut, 1, 0.07% Beilstein-Institut 1 publication, 0.07%
Bentham Science	Bentham Science, 1, 0.07% Bentham Science 1 publication, 0.07%
	50 100 150 200 250 300 350 400

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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Semonin O. E. et al. Peak External Photocurrent Quantum Efficiency Exceeding 100% via MEG in a Quantum Dot Solar Cell // Science. 2011. Vol. 334. No. 6062. pp. 1530-1533.

GOST all authors (up to 50) Copy

Semonin O. E., Luther J. M., Choi S., Chen H., Gao J., Nozik A. J., Beard M. C. Peak External Photocurrent Quantum Efficiency Exceeding 100% via MEG in a Quantum Dot Solar Cell // Science. 2011. Vol. 334. No. 6062. pp. 1530-1533.

RIS |

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RIS Copy

TY - JOUR

DO - 10.1126/science.1209845

UR - https://doi.org/10.1126/science.1209845

TI - Peak External Photocurrent Quantum Efficiency Exceeding 100% via MEG in a Quantum Dot Solar Cell

T2 - Science

AU - Semonin, Octavi E

AU - Luther, Joseph M.

AU - Choi, Sukgeun

AU - Chen, Hsiang-yu

AU - Gao, Jianbo

AU - Nozik, Arthur J.

AU - Beard, Matthew C

PY - 2011

DA - 2011/12/16 00:00:00

PB - American Association for the Advancement of Science (AAAS)

SP - 1530-1533

IS - 6062

VL - 334

SN - 0036-8075

SN - 1095-9203

ER -

BibTex |

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BibTex Copy

@article{2011_Semonin,

author = {Octavi E Semonin and Joseph M. Luther and Sukgeun Choi and Hsiang-yu Chen and Jianbo Gao and Arthur J. Nozik and Matthew C Beard},

title = {Peak External Photocurrent Quantum Efficiency Exceeding 100% via MEG in a Quantum Dot Solar Cell},

journal = {Science},

year = {2011},

volume = {334},

publisher = {American Association for the Advancement of Science (AAAS)},

month = {dec},

url = {https://doi.org/10.1126/science.1209845},

number = {6062},

pages = {1530--1533},

doi = {10.1126/science.1209845}

}

MLA

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MLA Copy

Semonin, Octavi E., et al. “Peak External Photocurrent Quantum Efficiency Exceeding 100% via MEG in a Quantum Dot Solar Cell.” Science, vol. 334, no. 6062, Dec. 2011, pp. 1530-1533. https://doi.org/10.1126/science.1209845.

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Publisher

American Association for the Advancement of Science (AAAS)

Journal

Science

Quartile SCImago

Quartile WOS

Impact factor

56.9

ISSN

00368075 (Print)
10959203 (Electronic)