Unravelling the phase transition of 2H-MoS2 to 1T-MoS2 induced by the chemical interaction of Pd with molybdenum disulfide-graphene hybrids

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F22%3A10456677" target="_blank" >RIV/00216208:11320/22:10456677 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=yQ4rFvmDiJ" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=yQ4rFvmDiJ</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apsusc.2022.153896" target="_blank" >10.1016/j.apsusc.2022.153896</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Unravelling the phase transition of 2H-MoS2 to 1T-MoS2 induced by the chemical interaction of Pd with molybdenum disulfide-graphene hybrids

Popis výsledku v původním jazyce

Hybrids of transition metal dichalcogenides (TMDs) nanoparticles on carbon-based materials have attracted considerable attention because of their remarkable physical and catalytic properties and potential applications in future electronic devices because of their high electrical conductivity and increased active sites. The most studied among them are the MoS2 - graphene hybrids. Nowadays, interest arises from introducing a variety of atoms into the layered MoS2 with sulfur excess. In this study, Pd was step wisely deposited on MoS2 and MoS2-rGO (reduced graphene oxide) substrates as well as on MoSx and MoSx-rGO (x &gt;= 2) with different MoSx and rGO ratios for both hybrids. To unravel the chemical interaction and the morphology of Pd on molybdenum disulphide and molybdenum disulphide -graphene composites, characterization with synchrotron radiation and X-ray photoelectron spectroscopies has been employed. These techniques enable non-destructive analysis of the depth profile. This work evaluates the interaction of Pd with S atoms with unsaturated electronic structures, the formation of PdSx surface compounds and Pd substitutional doping, leading to phase transition from the semiconducting 2HMoS2 to metallic 1T-MoS2 state. The understanding of the interaction of Pd with MoSx-graphene hybrids is essential to develop TMD-graphene-based functional materials and related devices.

Název v anglickém jazyce

Unravelling the phase transition of 2H-MoS2 to 1T-MoS2 induced by the chemical interaction of Pd with molybdenum disulfide-graphene hybrids

Popis výsledku anglicky

Hybrids of transition metal dichalcogenides (TMDs) nanoparticles on carbon-based materials have attracted considerable attention because of their remarkable physical and catalytic properties and potential applications in future electronic devices because of their high electrical conductivity and increased active sites. The most studied among them are the MoS2 - graphene hybrids. Nowadays, interest arises from introducing a variety of atoms into the layered MoS2 with sulfur excess. In this study, Pd was step wisely deposited on MoS2 and MoS2-rGO (reduced graphene oxide) substrates as well as on MoSx and MoSx-rGO (x &gt;= 2) with different MoSx and rGO ratios for both hybrids. To unravel the chemical interaction and the morphology of Pd on molybdenum disulphide and molybdenum disulphide -graphene composites, characterization with synchrotron radiation and X-ray photoelectron spectroscopies has been employed. These techniques enable non-destructive analysis of the depth profile. This work evaluates the interaction of Pd with S atoms with unsaturated electronic structures, the formation of PdSx surface compounds and Pd substitutional doping, leading to phase transition from the semiconducting 2HMoS2 to metallic 1T-MoS2 state. The understanding of the interaction of Pd with MoSx-graphene hybrids is essential to develop TMD-graphene-based functional materials and related devices.

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

<a href="/cs/project/LM2018116" target="_blank" >LM2018116: Laboratoř fyziky povrchů - Optická dráha pro výzkum materiálů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Applied Surface Science

ISSN

0169-4332

e-ISSN

1873-5584

Svazek periodika

599

Číslo periodika v rámci svazku

Oct

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

12

Strana od-do

153896

Kód UT WoS článku

000817886500001

EID výsledku v databázi Scopus

2-s2.0-85131815984