Self-assembly of electronically abrupt borophene/organic lateral heterostructures

Xiaolong Liu, Zonghui Wei, Itamar Balla, Andrew J. Mannix, Nathan P. Guisinger, Erik Luijten, Mark C Hersam

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Two-dimensional boron sheets (that is, borophene) have recently been realized experimentally and found to have promising electronic properties. Because electronic devices and systems require the integration of multiple materials with well-defined interfaces, it is of high interest to identify chemical methods for forming atomically abrupt heterostructures between borophene and electronically distinct materials. Toward this end, we demonstrate the self-assembly of lateral heterostructures between borophene and perylene-3,4,9,10-tetracarboxylic dianhydride (PTCDA). These lateral heterostructures spontaneously form upon deposition of PTCDA onto submonolayer borophene on Ag(111) substrates as a result of the higher adsorption enthalpy of PTCDA on Ag(111) and lateral hydrogen bonding among PTCDA molecules, as demonstrated by molecular dynamics simulations. In situ x-ray photoelectron spectroscopy confirms the weak chemical interaction between borophene and PTCDA, while molecular-resolution ultrahigh-vacuum scanning tunneling microscopy and spectroscopy reveal an electronically abrupt interface at the borophene/PTCDA lateral heterostructure interface. As the first demonstration of a borophene-based heterostructure, this work will inform emerging efforts to integrate borophene into nanoelectronic applications.

Original languageEnglish
Article numbere1602356
JournalScience advances
Volume3
Issue number2
DOIs
Publication statusPublished - Feb 1 2017

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Perylene
Self assembly
Heterojunctions
Boron
Nanoelectronics
Ultrahigh vacuum
Scanning tunneling microscopy
Photoelectron spectroscopy
Electronic properties
Molecular dynamics
Enthalpy
Hydrogen bonds
Demonstrations
Spectroscopy
Adsorption
X rays
Molecules
Computer simulation
Substrates

ASJC Scopus subject areas

  • General

Cite this

Liu, X., Wei, Z., Balla, I., Mannix, A. J., Guisinger, N. P., Luijten, E., & Hersam, M. C. (2017). Self-assembly of electronically abrupt borophene/organic lateral heterostructures. Science advances, 3(2), [e1602356]. https://doi.org/10.1126/sciadv.1602356

Self-assembly of electronically abrupt borophene/organic lateral heterostructures. / Liu, Xiaolong; Wei, Zonghui; Balla, Itamar; Mannix, Andrew J.; Guisinger, Nathan P.; Luijten, Erik; Hersam, Mark C.

In: Science advances, Vol. 3, No. 2, e1602356, 01.02.2017.

Research output: Contribution to journalArticle

Liu, X, Wei, Z, Balla, I, Mannix, AJ, Guisinger, NP, Luijten, E & Hersam, MC 2017, 'Self-assembly of electronically abrupt borophene/organic lateral heterostructures', Science advances, vol. 3, no. 2, e1602356. https://doi.org/10.1126/sciadv.1602356
Liu X, Wei Z, Balla I, Mannix AJ, Guisinger NP, Luijten E et al. Self-assembly of electronically abrupt borophene/organic lateral heterostructures. Science advances. 2017 Feb 1;3(2). e1602356. https://doi.org/10.1126/sciadv.1602356
Liu, Xiaolong ; Wei, Zonghui ; Balla, Itamar ; Mannix, Andrew J. ; Guisinger, Nathan P. ; Luijten, Erik ; Hersam, Mark C. / Self-assembly of electronically abrupt borophene/organic lateral heterostructures. In: Science advances. 2017 ; Vol. 3, No. 2.
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