E-beam fluorinated CVD graphene: in-situ XPS study on stability and NH 3 adsorption doping effect.

Autor: Malesys V; Institut de Sciences des Matériaux de Mulhouse, Université de Haute Alsace CNRS-UMR 7361, Mulhouse, France., Duan T; Department of Engineering Sciences, Ångström Laboratory, Uppsala University, 75121 Uppsala, Sweden., Denys E; Institut de Sciences des Matériaux de Mulhouse, Université de Haute Alsace CNRS-UMR 7361, Mulhouse, France., Li H; Department of Engineering Sciences, Ångström Laboratory, Uppsala University, 75121 Uppsala, Sweden.; Shandong Technology Centre of Nanodevices and Integration, School of Microelectronics, Shandong University, Jinan 250101, People's Republic of China., Leifer K; Department of Engineering Sciences, Ångström Laboratory, Uppsala University, 75121 Uppsala, Sweden., Simon L; Institut de Sciences des Matériaux de Mulhouse, Université de Haute Alsace CNRS-UMR 7361, Mulhouse, France.
Jazyk: angličtina
Zdroj: Nanotechnology [Nanotechnology] 2024 Dec 19; Vol. 36 (9). Date of Electronic Publication: 2024 Dec 19.
DOI: 10.1088/1361-6528/ad9ab0
Abstrakt: Graphene exhibits promise in gas detection applications despite its limited selectivity. Functionalization with fluorine atoms offers a potential solution to enhance selectivity, particularly towards ammonia (NH+) molecules. This article presents a study on electron-beam fluorinated graphene (FG) and its integration into gas sensor platforms. We begin by characterizing the thermal stability of fluorographene, demonstrating its resilience up to 450 °C. Subsequently, we investigate the nature of NH 3 interaction with FG, exploring distinct adsorption energies to address preferential adsorption concerns. Notably, we introduce an innovative approach utilizing x-ray photoelectron spectroscopy cartography for simultaneous analysis of fluorinated and pristine graphene, offering enhanced insights into their properties and interactions. This study contributes to advancing the understanding and application of FG in gas sensing technologies.
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Databáze: MEDLINE