Experimental and computational study of triple line shape and evolution on heterogeneous surfaces

- Current work studies the effect of macroscale chemical heterogeneities on triple line.
- Triple line shape and kinetics are studied, especially the nature of pinning.
- The triple line shape is shown to depend on the geometry of the chemical heterogeneity.
- The interfacial energy is shown to reach a maximum value in the pinned state.
- The system energy shows a gradient descent phase prior to the sudden jump due to de-pinning.