Structure of epitaxial heteromolecular bilayers probed by low-energy electron microscopy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10510413" target="_blank" >RIV/00216208:11320/25:10510413 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=II0msKKmtT" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=II0msKKmtT</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.surfin.2025.106251" target="_blank" >10.1016/j.surfin.2025.106251</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Structure of epitaxial heteromolecular bilayers probed by low-energy electron microscopy

Popis výsledku v původním jazyce

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 &apos; 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.

Název v anglickém jazyce

Structure of epitaxial heteromolecular bilayers probed by low-energy electron microscopy

Popis výsledku anglicky

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 &apos; 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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Surfaces and Interfaces

ISSN

2468-0230

e-ISSN

—

Svazek periodika

62

Číslo periodika v rámci svazku

Apr

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

106251

Kód UT WoS článku

001452968100001

EID výsledku v databázi Scopus

2-s2.0-105000332376