Existence of thickness threshold for crystal growth rate of ascorbic acid from its thin solution film

Growth rate of ascorbic acid crystal domains from its aqueous solution film depends on the film thickness. Existence of a thickness threshold is experimentally confirmed below which growth rate becomes quite low and is considered to almost stop. This threshold is one of the essential factors for the dynamical transition between uniform and rhythmic growth modes. •Crystal domain growth of ascorbic acid from its aqueous solution film by solvent evaporation.•Threshold sensitive dynamical transition between uniform and rhythmic growth modes.•Experimental evidence of existence of threshold thickness under which growth rate almost stops.