Phase diagram for morphological transitions of wetting films on chemically structured substrates

TL;DR

This paper uses an interface displacement model to map the phase diagram of morphological transitions in wetting films on chemically striped substrates, considering temperature, undersaturation, and stripe width.

Contribution

It provides a comprehensive phase diagram for morphological transitions of wetting films on chemically structured substrates, a novel analysis in this context.

Findings

Complete phase diagram of morphological transitions

Dependence on temperature, undersaturation, and stripe width

Identification of different film shapes and transitions

Abstract

Using an interface displacement model we calculate the shapes of thin liquidlike films adsorbed on flat substrates containing a chemical stripe. We determine the entire phase diagram of morphological phase transitions in these films as function of temperature, undersaturation, and stripe width