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Single-Phase Borophene on Ir(111) : Formation, Structure, and Decoupling from the Support

Vinogradov, Nikolay A. LU orcid ; Lyalin, Andrey ; Taketsugu, Tetsuya ; Vinogradov, Alexander S. and Preobrajenski, Alexei LU (2019) In ACS Nano 13(12). p.14511-14518
Abstract

Artificial two-dimensional (2D) materials, which host electronic or spatial structure and properties not typical for their bulk allotropes, can be grown epitaxially on atomically flat surfaces; the design and investigation of these materials are thus at the forefront of current research. Here we report the formation of borophene, a planar boron allotrope, on the surface of Ir(111) by exposing it to the flux of elemental boron and consequent annealing. By means of scanning tunneling microscopy and density functional theory calculations, we reveal the complex structure of this borophene, different from all planar boron allotropes reported earlier. This structure forms as a single phase on iridium substrate in a wide range of experimental... (More)

Artificial two-dimensional (2D) materials, which host electronic or spatial structure and properties not typical for their bulk allotropes, can be grown epitaxially on atomically flat surfaces; the design and investigation of these materials are thus at the forefront of current research. Here we report the formation of borophene, a planar boron allotrope, on the surface of Ir(111) by exposing it to the flux of elemental boron and consequent annealing. By means of scanning tunneling microscopy and density functional theory calculations, we reveal the complex structure of this borophene, different from all planar boron allotropes reported earlier. This structure forms as a single phase on iridium substrate in a wide range of experimental conditions and may be then decoupled from the substrate via intercalation. These findings allow for production of large, defect-free borophene sheets and advance theoretical understanding of polymorphism in borophene.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
borophene, density functional theory, polymorphism, scanning tunnelling microscopy, two-dimensional materials
in
ACS Nano
volume
13
issue
12
pages
14511 - 14518
publisher
The American Chemical Society (ACS)
external identifiers
  • pmid:31790188
  • scopus:85076722803
ISSN
1936-0851
DOI
10.1021/acsnano.9b08296
language
English
LU publication?
yes
id
39c34727-b210-4b1a-9507-489d15fb1297
date added to LUP
2020-01-10 14:35:00
date last changed
2024-05-16 03:33:13
@article{39c34727-b210-4b1a-9507-489d15fb1297,
  abstract     = {{<p>Artificial two-dimensional (2D) materials, which host electronic or spatial structure and properties not typical for their bulk allotropes, can be grown epitaxially on atomically flat surfaces; the design and investigation of these materials are thus at the forefront of current research. Here we report the formation of borophene, a planar boron allotrope, on the surface of Ir(111) by exposing it to the flux of elemental boron and consequent annealing. By means of scanning tunneling microscopy and density functional theory calculations, we reveal the complex structure of this borophene, different from all planar boron allotropes reported earlier. This structure forms as a single phase on iridium substrate in a wide range of experimental conditions and may be then decoupled from the substrate via intercalation. These findings allow for production of large, defect-free borophene sheets and advance theoretical understanding of polymorphism in borophene.</p>}},
  author       = {{Vinogradov, Nikolay A. and Lyalin, Andrey and Taketsugu, Tetsuya and Vinogradov, Alexander S. and Preobrajenski, Alexei}},
  issn         = {{1936-0851}},
  keywords     = {{borophene; density functional theory; polymorphism; scanning tunnelling microscopy; two-dimensional materials}},
  language     = {{eng}},
  number       = {{12}},
  pages        = {{14511--14518}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{ACS Nano}},
  title        = {{Single-Phase Borophene on Ir(111) : Formation, Structure, and Decoupling from the Support}},
  url          = {{http://dx.doi.org/10.1021/acsnano.9b08296}},
  doi          = {{10.1021/acsnano.9b08296}},
  volume       = {{13}},
  year         = {{2019}},
}