| 초록 |
Controlled evaporative self-assembly of conducting polymers have mostly been studied in 2-dimensional geometry, flat substrate. Herein, we report construction of hierarchically ordered structures using semi-conductive polymer, poly(3-hexylthiophene 2,5-diyl) (P3HT) within a 3-dimensional cylindrical geometry via π-π stacking of thiophene group during evaporative self-assembly. The parallel circular line patterns of P3HT were obtained with a regular width and interval owing to the conjunction of the coffee ring effect and the stick-slip phenomenon. We will discuss the effects of polymer concentration and evaporation temperature as well as the external forces on self-assembly including magnetic fields and gravitational forces. Finally, the self-assembled structures were qualitatively and quantitatively analyzed by Fourier transform, fractal dimension and lacunarity. |
