Thermally Induced Correlation Effects Studied by Raman Spectroscopy in PtSe2/Al2O3 Systems

Jan Raczyński; Jakub Nowaczyk; Ewelina Nowak; Semir El-Ahmar; Edyta Chłopocka; Mirosław Szybowicz; Wojciech Koczorowski

doi:10.1039/D4NR04062G

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Title

Thermally Induced Correlation Effects Studied by Raman Spectroscopy in PtSe2/Al2O3 Systems

Authors

Jan Raczyński (WIMiFT) ^{[ 1 ][ 2.8 ][ P ]}
Jakub Nowaczyk (WIMiFT) ^{[ 1 ][ S ]}
Ewelina Nowak (WIMiFT) ^{[ 2 ][ 2.8 ][ P ]}
Semir El-Ahmar (WIMiFT) ^{[ 1 ][ 2.8 ][ P ]}
Edyta Chłopocka (WIMiFT) ^{[ 3 ][ 2.8 ][ SzD ]}
Mirosław Szybowicz (WIMiFT) ^{[ 2 ][ 2.8 ][ P ]}
Wojciech Koczorowski (WIMiFT) ^{[ 1 ][ 2.8 ][ P ]}

^{[ 1 ]} Instytut Fizyki, Wydział Inżynierii Materiałowej i Fizyki Technicznej, Politechnika Poznańska | ^{[ 2 ]} Instytut Badań Materiałowych i Inżynierii Kwantowej, Wydział Inżynierii Materiałowej i Fizyki Technicznej, Politechnika Poznańska | ^{[ 3 ]} Wydział Inżynierii Materiałowej i Fizyki Technicznej, Politechnika Poznańska | ^{[ P ]} employee | ^{[ S ]} student | ^{[ SzD ]} doctoral school student

Scientific discipline (Law 2.0)

[2.8] Materials engineering

Year of publication

2025

Published in

Nanoscale

Journal year: 2025 | Journal volume: vol. 17 | Journal number: iss. 20

Article type

scientific article

Publication language

english

Keywords

EN

2D materials
Transition Metal Dichalcogenides
PtSe2
Raman spectroscopy
correlation plot

Abstract

EN In this paper, we report the analysis of the Raman spectroscopy results of PtSe2 layers (ranging from 1 to 10 layers) deposited on an Al2O3 substrate, compared to those of the sub-micron thin flake and bulk PtSe2. The positions of typical PtSe2 Raman modes and the integral intensity ratios of the A1g and E1g bands are compared and discussed for all the systems considered in the temperature range from room temperature to 520 K. Moreover, the correlation plot of E1g and A1g is used to analyse the correlations of the dominant Raman modes in the PtSe2/Al2O3 systems, in which the frequency position (in-plane to out-of-plane) ratio exhibits a well-defined linear dependence on temperature.

Pages (from - to)

12810 - 12816

DOI

10.1039/D4NR04062G

URL

https://pubs.rsc.org/en/content/articlelanding/2025/nr/d4nr04062g

Ministry points / journal

140

Impact Factor

5,8 [List 2023]

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