Silver Decoration of Vertically Aligned MoS2-MoOx Nanosheets: A Comprehensive XPS Investigation

Author:

Youssef Khaled Al1,Das Arkaprava2ORCID,Colomer Jean-François3ORCID,Hemberg Axel4,Noirfalise Xavier4,Bittencourt Carla1ORCID

Affiliation:

1. Chimie des Interactions Plasma-Surface (ChIPS), Materials Institute, University of Mons, 23 Place du Parc, 7000 Mons, Belgium

2. Institute of Physical and Theoretical Chemistry, University of Tuebingen, 72076 Tuebingen, Germany

3. Research Group on Carbon Nanostructures (CARBONNAGe), University of Namur, 61 Rue de Bruxelles, 5000 Namur, Belgium

4. Materia Nova, 3 Avenue Copernic, 7000 Mons, Belgium

Abstract

This study investigates the simultaneous decoration of vertically aligned molybdenum disulfide nanostructure (VA-MoS2) with Ag nanoparticles (NPs) and nitrogen functionalization. Nitrogen functionalization was achieved through physical vapor deposition (PVD) DC-magnetron sputtering using nitrogen as a reactive gas, aiming to induce p-type behavior in MoS2. The utilization of reactive sputtering resulted in the growth of three-dimensional silver structures on the surface of MoS2, promoting the formation of silver nanoparticles. A comprehensive characterization was conducted to assess surface modifications and analyze chemical and structural changes. X-ray photoelectron spectroscopy (XPS) showed the presence of silver on the MoS2 surface. Scanning electron microscopy (SEM) confirmed successful decoration with silver nanoparticles, showing that deposition time affects the size and distribution of the silver on the MoS2 surface.

Publisher

MDPI AG

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