Atom Probe Tomography Analysis of Ag Doping in 2D Layered Material (PbSe)5(Bi2Se3)3

Xiaochen Ren, Arunima K. Singh, Lei Fang, Mercouri G Kanatzidis, Francesca Tavazza, Albert V. Davydov, Lincoln J. Lauhon

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Impurity doping in two-dimensional (2D) materials can provide a route to tuning electronic properties, so it is important to be able to determine the distribution of dopant atoms within and between layers. Here we report the tomographic mapping of dopants in layered 2D materials with atomic sensitivity and subnanometer spatial resolution using atom probe tomography (APT). APT analysis shows that Ag dopes both Bi2Se3 and PbSe layers in (PbSe)5(Bi2Se3)3, and correlations in the position of Ag atoms suggest a pairing across neighboring Bi2Se3 and PbSe layers. Density functional theory (DFT) calculations confirm the favorability of substitutional doping for both Pb and Bi and provide insights into the observed spatial correlations in dopant locations.

Original languageEnglish
Pages (from-to)6064-6069
Number of pages6
JournalNano Letters
Volume16
Issue number10
DOIs
Publication statusPublished - Oct 12 2016

Fingerprint

Tomography
tomography
Doping (additives)
Atoms
probes
atoms
dopes
spatial resolution
Electronic properties
tuning
routes
Density functional theory
density functional theory
impurities
Tuning
lead selenide
sensitivity
Impurities
electronics

Keywords

  • 2D materials
  • Atom probe tomography
  • DFT
  • Doping
  • Materials genome initiative

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

Ren, X., Singh, A. K., Fang, L., Kanatzidis, M. G., Tavazza, F., Davydov, A. V., & Lauhon, L. J. (2016). Atom Probe Tomography Analysis of Ag Doping in 2D Layered Material (PbSe)5(Bi2Se3)3 Nano Letters, 16(10), 6064-6069. https://doi.org/10.1021/acs.nanolett.6b02104

Atom Probe Tomography Analysis of Ag Doping in 2D Layered Material (PbSe)5(Bi2Se3)3 . / Ren, Xiaochen; Singh, Arunima K.; Fang, Lei; Kanatzidis, Mercouri G; Tavazza, Francesca; Davydov, Albert V.; Lauhon, Lincoln J.

In: Nano Letters, Vol. 16, No. 10, 12.10.2016, p. 6064-6069.

Research output: Contribution to journalArticle

Ren, X, Singh, AK, Fang, L, Kanatzidis, MG, Tavazza, F, Davydov, AV & Lauhon, LJ 2016, 'Atom Probe Tomography Analysis of Ag Doping in 2D Layered Material (PbSe)5(Bi2Se3)3 ', Nano Letters, vol. 16, no. 10, pp. 6064-6069. https://doi.org/10.1021/acs.nanolett.6b02104
Ren, Xiaochen ; Singh, Arunima K. ; Fang, Lei ; Kanatzidis, Mercouri G ; Tavazza, Francesca ; Davydov, Albert V. ; Lauhon, Lincoln J. / Atom Probe Tomography Analysis of Ag Doping in 2D Layered Material (PbSe)5(Bi2Se3)3 In: Nano Letters. 2016 ; Vol. 16, No. 10. pp. 6064-6069.
@article{13a9905fff7f4d7badff711e6c3d4fd5,
title = "Atom Probe Tomography Analysis of Ag Doping in 2D Layered Material (PbSe)5(Bi2Se3)3",
abstract = "Impurity doping in two-dimensional (2D) materials can provide a route to tuning electronic properties, so it is important to be able to determine the distribution of dopant atoms within and between layers. Here we report the tomographic mapping of dopants in layered 2D materials with atomic sensitivity and subnanometer spatial resolution using atom probe tomography (APT). APT analysis shows that Ag dopes both Bi2Se3 and PbSe layers in (PbSe)5(Bi2Se3)3, and correlations in the position of Ag atoms suggest a pairing across neighboring Bi2Se3 and PbSe layers. Density functional theory (DFT) calculations confirm the favorability of substitutional doping for both Pb and Bi and provide insights into the observed spatial correlations in dopant locations.",
keywords = "2D materials, Atom probe tomography, DFT, Doping, Materials genome initiative",
author = "Xiaochen Ren and Singh, {Arunima K.} and Lei Fang and Kanatzidis, {Mercouri G} and Francesca Tavazza and Davydov, {Albert V.} and Lauhon, {Lincoln J.}",
year = "2016",
month = "10",
day = "12",
doi = "10.1021/acs.nanolett.6b02104",
language = "English",
volume = "16",
pages = "6064--6069",
journal = "Nano Letters",
issn = "1530-6984",
publisher = "American Chemical Society",
number = "10",

}

TY - JOUR

T1 - Atom Probe Tomography Analysis of Ag Doping in 2D Layered Material (PbSe)5(Bi2Se3)3

AU - Ren, Xiaochen

AU - Singh, Arunima K.

AU - Fang, Lei

AU - Kanatzidis, Mercouri G

AU - Tavazza, Francesca

AU - Davydov, Albert V.

AU - Lauhon, Lincoln J.

PY - 2016/10/12

Y1 - 2016/10/12

N2 - Impurity doping in two-dimensional (2D) materials can provide a route to tuning electronic properties, so it is important to be able to determine the distribution of dopant atoms within and between layers. Here we report the tomographic mapping of dopants in layered 2D materials with atomic sensitivity and subnanometer spatial resolution using atom probe tomography (APT). APT analysis shows that Ag dopes both Bi2Se3 and PbSe layers in (PbSe)5(Bi2Se3)3, and correlations in the position of Ag atoms suggest a pairing across neighboring Bi2Se3 and PbSe layers. Density functional theory (DFT) calculations confirm the favorability of substitutional doping for both Pb and Bi and provide insights into the observed spatial correlations in dopant locations.

AB - Impurity doping in two-dimensional (2D) materials can provide a route to tuning electronic properties, so it is important to be able to determine the distribution of dopant atoms within and between layers. Here we report the tomographic mapping of dopants in layered 2D materials with atomic sensitivity and subnanometer spatial resolution using atom probe tomography (APT). APT analysis shows that Ag dopes both Bi2Se3 and PbSe layers in (PbSe)5(Bi2Se3)3, and correlations in the position of Ag atoms suggest a pairing across neighboring Bi2Se3 and PbSe layers. Density functional theory (DFT) calculations confirm the favorability of substitutional doping for both Pb and Bi and provide insights into the observed spatial correlations in dopant locations.

KW - 2D materials

KW - Atom probe tomography

KW - DFT

KW - Doping

KW - Materials genome initiative

UR - http://www.scopus.com/inward/record.url?scp=84991672006&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84991672006&partnerID=8YFLogxK

U2 - 10.1021/acs.nanolett.6b02104

DO - 10.1021/acs.nanolett.6b02104

M3 - Article

VL - 16

SP - 6064

EP - 6069

JO - Nano Letters

JF - Nano Letters

SN - 1530-6984

IS - 10

ER -