Publication result detail

Carborane Nanomembranes

FREY, M.; PICKER, J.; NEUMANN, CH.; VIŠŇÁK, J.; MACHÁČEK, J.; TOK, O. L.; BÁBOR, P.; BAŠE, T.; TURCHANIN, A.

Original Title

Carborane Nanomembranes

English Title

Carborane Nanomembranes

Type

WoS Article

Original Abstract

We report on the fabrication of a boron-based two-dimensional (2D) material via electron irradiation-induced cross-linking of carborane self-assembled monolayers (SAMs) on crystalline silver substrates. The SAMs of 1,2-dicarba-closo-dodecarborane-9,12-dithiol (O9,12) were prepared on flat crystalline silver substrates and irradiated with low-energy electrons, resulting in a 2D nanomembrane. The mechanical stability and compact character of the carborane nanomembrane were improved by using 12-(1 ',12 '-dicarba-closo-dodecarboran-1 '-yl)-1,12-dicarba-closo-dodecarborane-1-thiol (1-HS-bis -pCB), a longer, rod-like SAM precursor with two para-carborane units linked linearly together. The self-assembly, cross-linking process, and transfer of the resulting membranes onto holey substrates were characterized with different complementary surface-sensitive techniques including X-ray photoelectron spectroscopy (XPS), ultraviolet photoelectron spectroscopy (UPS), and low-energy electron diffraction (LEED) as well as scanning tunneling and electron microscopies (STM, SEM) to provide insight on the structural changes within the cross-linked SAMs. The presented methodology has potential for the development of boron-based 2D materials for applications in electronic and optical devices.

English abstract

We report on the fabrication of a boron-based two-dimensional (2D) material via electron irradiation-induced cross-linking of carborane self-assembled monolayers (SAMs) on crystalline silver substrates. The SAMs of 1,2-dicarba-closo-dodecarborane-9,12-dithiol (O9,12) were prepared on flat crystalline silver substrates and irradiated with low-energy electrons, resulting in a 2D nanomembrane. The mechanical stability and compact character of the carborane nanomembrane were improved by using 12-(1 ',12 '-dicarba-closo-dodecarboran-1 '-yl)-1,12-dicarba-closo-dodecarborane-1-thiol (1-HS-bis -pCB), a longer, rod-like SAM precursor with two para-carborane units linked linearly together. The self-assembly, cross-linking process, and transfer of the resulting membranes onto holey substrates were characterized with different complementary surface-sensitive techniques including X-ray photoelectron spectroscopy (XPS), ultraviolet photoelectron spectroscopy (UPS), and low-energy electron diffraction (LEED) as well as scanning tunneling and electron microscopies (STM, SEM) to provide insight on the structural changes within the cross-linked SAMs. The presented methodology has potential for the development of boron-based 2D materials for applications in electronic and optical devices.

Keywords

carboranes; two-dimensional materials; molecularself-assembly; electron irradiation induced chemical synthesis; nanomembranes

Key words in English

carboranes; two-dimensional materials; molecularself-assembly; electron irradiation induced chemical synthesis; nanomembranes

Authors

FREY, M.; PICKER, J.; NEUMANN, CH.; VIŠŇÁK, J.; MACHÁČEK, J.; TOK, O. L.; BÁBOR, P.; BAŠE, T.; TURCHANIN, A.

Released

19.02.2025

Publisher

AMER CHEMICAL SOC

Location

WASHINGTON

ISBN

1936-0851

Periodical

ACS Nano

Volume

19

Number

8

State

United States of America

Pages from

8131

Pages to

8141

Pages count

11

URL

https://pubs.acs.org/doi/10.1021/acsnano.4c16611

BibTex

@article{BUT197491,
  author="FREY, M. and PICKER, J. and NEUMANN, CH. and VIŠŇÁK, J. and MACHÁČEK, J. and TOK, O. L. and BÁBOR, P. and BAŠE, T. and TURCHANIN, A.",
  title="Carborane Nanomembranes",
  journal="ACS Nano",
  year="2025",
  volume="19",
  number="8",
  pages="8131--8141",
  doi="10.1021/acsnano.4c16611",
  issn="1936-0851",
  url="https://pubs.acs.org/doi/10.1021/acsnano.4c16611"
}