ZnO Nanorod Growth: Rate Curves & Aspect Ratio

This is the 2D counterpart to the 3D hydrothermal ZnO nanorod scene, computing the identical Arrhenius-plus-supersaturation facet kinetics through four analytic views instead of a rendered instanced-mesh array: a schematic side profile of the growing rods, an Arrhenius rate curve showing how temperature drives the axial and radial facets apart, a supersaturation curve showing the same race against precursor concentration, and a length/diameter-vs-time trace for the current run. Tune bath temperature, precursor concentration and the citrate capping agent and watch every readout react to the same rate law driving the plots.