Highly Efficient Bulk-Crystal-Sized Exfoliation of 2D Materials under Ultrahigh Vacuum

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F24%3A00585020" target="_blank" >RIV/61388955:_____/24:00585020 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/24:10481768

Výsledek na webu

<a href="https://hdl.handle.net/11104/0352789" target="_blank" >https://hdl.handle.net/11104/0352789</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acsaelm.3c01824" target="_blank" >10.1021/acsaelm.3c01824</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Highly Efficient Bulk-Crystal-Sized Exfoliation of 2D Materials under Ultrahigh Vacuum

Popis výsledku v původním jazyce

In the realm of materials science and nanotechnology, the pursuit of the scalable preparation of high-quality monolayers of two-dimensional (2D) materials is a significant challenge. Despite the widespread interest sparked by the unique quantum mechanical effects in these materials, achieving scalable and controlled syntheses remains hindered by a lack of suitable techniques. This work presents a facile exfoliation approach that successfully yields bulk-crystal-sized 2D monolayers, approaching 100% under ultrahigh vacuum (UHV) conditions. The process was demonstrated by exfoliating MoS2 on Au and Ag substrates. Raman spectroscopy reveals a strong dispersive interaction at the metal/MoS2 interface, inducing a high strain field on the topmost layer of the bulk crystal. This strain field's inhomogeneous distribution reduces interlayer van der Waals interactions, enhancing the selectivity of monolayer exfoliation. Beyond scalable exfoliation, our method opens avenues for obtaining monolayers of materials unstable under ambient conditions, emphasizing its broader applicability in advancing the synthesis of 2D materials for diverse applications.

Název v anglickém jazyce

Highly Efficient Bulk-Crystal-Sized Exfoliation of 2D Materials under Ultrahigh Vacuum

Popis výsledku anglicky

In the realm of materials science and nanotechnology, the pursuit of the scalable preparation of high-quality monolayers of two-dimensional (2D) materials is a significant challenge. Despite the widespread interest sparked by the unique quantum mechanical effects in these materials, achieving scalable and controlled syntheses remains hindered by a lack of suitable techniques. This work presents a facile exfoliation approach that successfully yields bulk-crystal-sized 2D monolayers, approaching 100% under ultrahigh vacuum (UHV) conditions. The process was demonstrated by exfoliating MoS2 on Au and Ag substrates. Raman spectroscopy reveals a strong dispersive interaction at the metal/MoS2 interface, inducing a high strain field on the topmost layer of the bulk crystal. This strain field's inhomogeneous distribution reduces interlayer van der Waals interactions, enhancing the selectivity of monolayer exfoliation. Beyond scalable exfoliation, our method opens avenues for obtaining monolayers of materials unstable under ambient conditions, emphasizing its broader applicability in advancing the synthesis of 2D materials for diverse applications.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/GX20-08633X" target="_blank" >GX20-08633X: ÅrchitektRonika dvoudimenzionálních krystalů se synergií chirálních elektrochemických a optoelektronických konceptů na Å- škále</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

ACS Applied Electronic Materials

ISSN

2637-6113

e-ISSN

2637-6113

Svazek periodika

6

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

2301-2308

Kód UT WoS článku

001192441900001

EID výsledku v databázi Scopus

2-s2.0-85189083161