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MAKOVEEV, A. PROCHÁZKA, P. SHAHSAVAR, A. KORMOŠ, L. KRAJŇÁK, T. STARÁ, V. ČECHAL, J.
Original Title
Kinetic control of self-assembly using a low-energy electron beam
Type
journal article in Web of Science
Language
English
Original Abstract
Self-assembly and on-surface synthesis are vital strategies used for fabricating surface-confined 1D or 2D su-pramolecular nanoarchitectures with atomic precision. In many systems, the resulting structure is determined by the kinetics of the processes involved, i.e., reaction rate, on-surface diffusion, nucleation, and growth, all of which are typically governed by temperature. However, other external factors have been only scarcely harnessed to control the on-surface chemical reaction kinetics and self-assembly. Here, we show that a low-energy electron beam can be used to steer chemical reaction kinetics and induce the growth of molecular phases unattainable by thermal annealing. The electron beam provides a well-controlled means of promoting the elementary reaction step, i.e., deprotonation of carboxyl groups. The reaction rate increases with the increasing electron beam energy beyond the threshold energy of 6 eV. Our results offer the novel prospect of controlling self-assembly, enhancing the rate of reaction steps selectively, and thus altering the kinetic rate hierarchy.
Keywords
Low -Energy Electron Microscopy; Surfaces; Kinetics; On -Surface Reactions; Self-Assembly
Authors
MAKOVEEV, A.; PROCHÁZKA, P.; SHAHSAVAR, A.; KORMOŠ, L.; KRAJŇÁK, T.; STARÁ, V.; ČECHAL, J.
Released
30. 10. 2022
Publisher
ELSEVIER
Location
AMSTERDAM
ISBN
1873-5584
Periodical
APPLIED SURFACE SCIENCE
Year of study
600
Number
1
State
Kingdom of the Netherlands
Pages from
154106
Pages to
154112
Pages count
7
URL
https://www.sciencedirect.com/science/article/pii/S0169433222016427?via%3Dihub
BibTex
@article{BUT179629, author="Anton Olegovich {Makoveev} and Pavel {Procházka} and Azin {Trllová Shahsavar} and Lukáš {Kormoš} and Tomáš {Krajňák} and Veronika {Stará} and Jan {Čechal}", title="Kinetic control of self-assembly using a low-energy electron beam", journal="APPLIED SURFACE SCIENCE", year="2022", volume="600", number="1", pages="7", doi="10.1016/j.apsusc.2022.154106", issn="1873-5584", url="https://www.sciencedirect.com/science/article/pii/S0169433222016427?via%3Dihub" }