A new non-dimensional ratio of the velocity of evaporating static interface versus lifting velocity is proposed for the same. The plot with five orders of magnitude variation of non-dimensional numbers on each axis demarcates the regions of several newly observed phenomena: ‘No retention’, ‘Bridge breaking’, and ‘Wall formation’ with ‘stable’ and ‘unstable’ interface evolution. Rich experimental characterization data on volatile polymer solution evolution in a uniport lifted Hele-Shaw cell (ULHSC) is represented on a non-dimensional phase plot. This paper characterizes viscous fingering instability-based, lithography-less, spontaneous, and scalable process towards fabrication of 3D patterns like nature-inspired honeycomb structures with ultra-high aspect ratio walls. Mimicking nature using artificial technologies has always been a quest/fascination of scientists and researchers of all eras.
