Observation of a burstein-moss shift in rhenium-doped MoS2 nanoparticles

Qi C. Sun; Lena Yadgarov; Rita Rosentsveig; Gotthard Seifert; Reshef Tenne; Janice L. Musfeldt

doi:10.1021/nn400464g

Observation of a burstein-moss shift in rhenium-doped MoS₂ nanoparticles

Qi C. Sun, Lena Yadgarov, Rita Rosentsveig, Gotthard Seifert, Reshef Tenne, Janice L. Musfeldt

Department of Molecular Chemistry and Materials Science Perlman

Weizmann Institute of Science

Research output: Contribution to journal › Article › peer-review

Abstract

We investigated the optical properties of rhenium-doped MoS₂ nanoparticles and compared our findings with the pristine and bulk analogues. Our measurements reveal that confinement softens the exciton positions and reduces spin-orbit coupling, whereas doping has the opposite effect. We model the carrier-induced exciton blue shift in terms of the Burstein-Moss effect. These findings are important for understanding doping and finite length scale effects in low-dimensional nanoscale materials.

Original language	English
Pages (from-to)	3506-3511
Number of pages	6
Journal	ACS Nano
Volume	7
Issue number	4
DOIs	https://doi.org/10.1021/nn400464g
State	Published - 23 Apr 2013

Keywords

Burstein-Moss effect
chalcogenides
nanoparticles
optical conductivity
spin-orbit coupling

All Science Journal Classification (ASJC) codes

General Materials Science
General Engineering
General Physics and Astronomy

Access to Document

10.1021/nn400464g

Cite this

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title = "Observation of a burstein-moss shift in rhenium-doped MoS2 nanoparticles",

abstract = "We investigated the optical properties of rhenium-doped MoS2 nanoparticles and compared our findings with the pristine and bulk analogues. Our measurements reveal that confinement softens the exciton positions and reduces spin-orbit coupling, whereas doping has the opposite effect. We model the carrier-induced exciton blue shift in terms of the Burstein-Moss effect. These findings are important for understanding doping and finite length scale effects in low-dimensional nanoscale materials.",

keywords = "Burstein-Moss effect, chalcogenides, nanoparticles, optical conductivity, spin-orbit coupling",

author = "Sun, \{Qi C.\} and Lena Yadgarov and Rita Rosentsveig and Gotthard Seifert and Reshef Tenne and Musfeldt, \{Janice L.\}",

note = "U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-FG02-01ER45885]; NanoMaterials, Ltd.This research is supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under Award DE-FG02-01ER45885 (J.L.M.) and NanoMaterials, Ltd. (R.T.). R.T. is the director of the Helen and Martin Kimmel Center for Nanoscale Science and holds the Drake Family Chair in Nanotechnology. We thank D. Mazumdar for useful discussions.",

year = "2013",

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doi = "10.1021/nn400464g",

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T1 - Observation of a burstein-moss shift in rhenium-doped MoS2 nanoparticles

AU - Sun, Qi C.

AU - Yadgarov, Lena

AU - Rosentsveig, Rita

AU - Seifert, Gotthard

AU - Tenne, Reshef

AU - Musfeldt, Janice L.

N1 - U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-FG02-01ER45885]; NanoMaterials, Ltd.This research is supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under Award DE-FG02-01ER45885 (J.L.M.) and NanoMaterials, Ltd. (R.T.). R.T. is the director of the Helen and Martin Kimmel Center for Nanoscale Science and holds the Drake Family Chair in Nanotechnology. We thank D. Mazumdar for useful discussions.

PY - 2013/4/23

Y1 - 2013/4/23

N2 - We investigated the optical properties of rhenium-doped MoS2 nanoparticles and compared our findings with the pristine and bulk analogues. Our measurements reveal that confinement softens the exciton positions and reduces spin-orbit coupling, whereas doping has the opposite effect. We model the carrier-induced exciton blue shift in terms of the Burstein-Moss effect. These findings are important for understanding doping and finite length scale effects in low-dimensional nanoscale materials.

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KW - Burstein-Moss effect

KW - chalcogenides

KW - nanoparticles

KW - optical conductivity

KW - spin-orbit coupling

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