Hybridization Directionality Governs the Interaction Strength between MoS2 and Metals

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F25%3A00638740" target="_blank" >RIV/61388955:_____/25:00638740 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/25:00638740 RIV/60461373:22340/25:43932554

Výsledek na webu

<a href="https://hdl.handle.net/11104/0369332" target="_blank" >https://hdl.handle.net/11104/0369332</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.nanolett.5c03200" target="_blank" >10.1021/acs.nanolett.5c03200</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hybridization Directionality Governs the Interaction Strength between MoS2 and Metals

Popis výsledku v původním jazyce

Gold-assisted exfoliation has emerged as an effective method for producing large-area monolayers of two-dimensional materials, yet its underlying mechanism remains poorly understood. While other metals also hold promise for facilitating large-area exfoliation, their practical application is hindered by oxidation in air. To address this, we fabricate heterostructures of monolayer MoS2 with polycrystalline gold, silver, copper, palladium, cobalt, and nickel via direct mechanical exfoliation of bulk molybdenite under controlled atmospheric conditions. Our photoemission spectroscopy, vibrational spectroscopy, and density functional theory results reveal the metal-dependent modification of monolayer MoS2. We identify the hybridization directionality and, in particular, the asymmetry between the bottom and top sulfur atoms as previously overlooked key factors in weakening the MoS2-MoS2 van der Waals interaction, ultimately enabling selective monolayer exfoliation.

Název v anglickém jazyce

Hybridization Directionality Governs the Interaction Strength between MoS2 and Metals

Popis výsledku anglicky

Gold-assisted exfoliation has emerged as an effective method for producing large-area monolayers of two-dimensional materials, yet its underlying mechanism remains poorly understood. While other metals also hold promise for facilitating large-area exfoliation, their practical application is hindered by oxidation in air. To address this, we fabricate heterostructures of monolayer MoS2 with polycrystalline gold, silver, copper, palladium, cobalt, and nickel via direct mechanical exfoliation of bulk molybdenite under controlled atmospheric conditions. Our photoemission spectroscopy, vibrational spectroscopy, and density functional theory results reveal the metal-dependent modification of monolayer MoS2. We identify the hybridization directionality and, in particular, the asymmetry between the bottom and top sulfur atoms as previously overlooked key factors in weakening the MoS2-MoS2 van der Waals interaction, ultimately enabling selective monolayer exfoliation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

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

Nano Letters

ISSN

1530-6984

e-ISSN

1530-6992

Svazek periodika

25

Číslo periodika v rámci svazku

34

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

12995-13002

Kód UT WoS článku

001554065400001

EID výsledku v databázi Scopus

2-s2.0-105014226047