Self-assembly of electronically abrupt borophene/organic lateral heterostructures
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 selfassembly 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
- Authors:
-
[1];
[1];
[2];
[3];
[5];
- Northwestern Univ., Evanston, IL (United States). Applied Physics Graduate Program
- Northwestern Univ., Evanston, IL (United States). Dept. of Materials Science and Engineering
- Northwestern Univ., Evanston, IL (United States). Dept. of Materials Science and Engineering; Argonne National Lab. (ANL), Argonne, IL (United States). Center for Nanoscale Materials
- Argonne National Lab. (ANL), Argonne, IL (United States). Center for Nanoscale Materials
- Northwestern Univ., Evanston, IL (United States). Applied Physics Graduate Program; Northwestern Univ., Evanston, IL (United States). Dept. of Materials Science and Engineering; Northwestern Univ., Evanston, IL (United States). Dept. of Engineering Sciences and Applied Mathematics; Northwestern Univ., Evanston, IL (United States). Dept. of Physics and Astronomy
- Northwestern Univ., Evanston, IL (United States). Applied Physics Graduate Program; Northwestern Univ., Evanston, IL (United States). Dept. of Materials Science and Engineering; Northwestern Univ., Evanston, IL (United States). Dept. of Chemistry; Northwestern Univ., Evanston, IL (United States). Dept. of Electrical Engineering and Computer Science
- Publication Date:
- Research Org.:
- Northwestern Univ., Evanston, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1625966
- Grant/Contract Number:
- AC02-06CH11357
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Science Advances
- Additional Journal Information:
- Journal Volume: 3; Journal Issue: 2; Journal ID: ISSN 2375-2548
- Publisher:
- AAAS
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 25 ENERGY STORAGE; Science & Technology - Other Topics
Citation Formats
Liu, Xiaolong, Wei, Zonghui, Balla, Itamar, Mannix, Andrew J., Guisinger, Nathan P., Luijten, Erik, and Hersam, Mark C. Self-assembly of electronically abrupt borophene/organic lateral heterostructures. United States: N. p., 2017.
Web. doi: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. United States. https://doi.org/10.1126/sciadv.1602356
Liu, Xiaolong, Wei, Zonghui, Balla, Itamar, Mannix, Andrew J., Guisinger, Nathan P., Luijten, Erik, and Hersam, Mark C. Wed .
"Self-assembly of electronically abrupt borophene/organic lateral heterostructures". United States. https://doi.org/10.1126/sciadv.1602356. https://www.osti.gov/servlets/purl/1625966.
@article{osti_1625966,
title = {Self-assembly of electronically abrupt borophene/organic lateral heterostructures},
author = {Liu, Xiaolong and Wei, Zonghui and Balla, Itamar and Mannix, Andrew J. and Guisinger, Nathan P. and Luijten, Erik and Hersam, Mark C.},
abstractNote = {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 selfassembly 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},
doi = {10.1126/sciadv.1602356},
journal = {Science Advances},
number = 2,
volume = 3,
place = {United States},
year = {Wed Feb 01 00:00:00 EST 2017},
month = {Wed Feb 01 00:00:00 EST 2017}
}
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