Fig. 4: Synthesis of OPGCs based on viscosity control.
From: Organic parallel grouping crystals without grain boundary
a–f FM images of organic microrods with increasing parallel grouping frequency as the solvent viscosity (η) increases. g Time-dependent viscosity curve at different cooling rates; the solvent was DCM and the initial concentration was 20 mmol/L. h Concentration-dependent viscosity curve in different solvents. i Relationship between the frequency of parallel grouping crystal and the solvent viscosity.
