Detail publikace
Structure of epitaxial heteromolecular bilayers probed by low-energy electron microscopy
PROCHÁZKA, P. STARÁ, V. PLANER, J. SKÁLA, T. ČECHAL, J.
Originální název
Structure of epitaxial heteromolecular bilayers probed by low-energy electron microscopy
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
Heteromolecular interfaces with tailored properties are vital for many advanced applications. However, the complex view on the formation of these interfaces is generally missing as it is difficult to access them with common techniques. Here, we employ hierarchical self-assembly to build a heteromolecular interface of structurally similar yet chemically distinct molecular building blocks and demonstrate an epitaxial relationship between the top and bottom layers. In particular, we employ semideprotonated phase of 4,4 ' biphenyl dicarboxylic acid (BDA) on Ag(001) surface to mediate the epitaxial growth of intact BDA phase on the top. The interface phase induces high structural order of the second layer phase, which was missing on Ag surface. The combination of real-space imaging and diffraction analysis by low-energy electron microscopy (LEEM) enabled us to precisely identify structural features, including domain sizes and orientations, and the distinct origin of domain boundaries in the first and second layers. Our work thus establishes LEEM as an efficient method for studying heteromolecular interfaces.
Klíčová slova
Molecular stacking; Self-assembly; Surfaces; Low-energy electron microscopy; Scanning tunneling microscopy; Photoelectron Spectroscopy
Autoři
PROCHÁZKA, P.; STARÁ, V.; PLANER, J.; SKÁLA, T.; ČECHAL, J.
Vydáno
1. 4. 2025
Nakladatel
ELSEVIER
Místo
AMSTERDAM
ISSN
2468-0230
Periodikum
SURFACES AND INTERFACES
Ročník
62
Číslo
106251
Stát
Nizozemsko
Strany od
106251-1
Strany do
106251-8
Strany počet
8
URL