Electrophoretic deposition of WS2 flakes on nanoholes arrays. Role of the used suspension medium

TL;DR

This paper optimizes electrophoretic deposition of WS2 flakes on nanohole arrays, focusing on how suspension medium affects process efficiency and flake stability for plasmonic applications.

Contribution

It introduces a method to control WS2 flake deposition by analyzing the impact of different suspension media on process efficiency and stability.

Findings

Suspension medium significantly affects deposition efficiency.

Different media influence the stability of WS2 flakes.

Optimized conditions improve site-selective deposition.

Abstract

Here we optimized the electrophoretic deposition process for the fabrication of WS2 plasmonic nanohole integrated structures. We showed how the conditions used for the site selective deposition influenced the properties of the deposited flakes. In particular, we investigated the effect of different suspension medium used during the deposition both in the efficiency of the process and in the stability of WS2 flakes, which were deposited on a ordered arrays of plasmonic nanostructures.