| 초록 |
Poly (3-hexylthiophene) (P3HT) has been extensively investigated due to its electrical properties, stability, and solution-processability applicable to organic field-effect transistors, chemical sensors, and photovoltaic solar cells. As electronic elements, the control of both nanoscale morphology and chain alignment has been critical issues because of anisotropic charge transport in the conjugated polymers. Here, we fabricated ultrahigh density array of P3HT nanotubes via solution wetting in the nanoporous template followed by the solvent annealing. It is found that the P3HT nanotubes have (010) planar structure due to π-π interchain stacking along the nanotube axis. Due to this molecular ordering, the conductivity was higher about 10 times than that of a continuous P3HT film. These well-defined P3HT nanotube arrays with extremely large surface area and the enhancement of the charge transport could be used as sensors and organic photovoltaic devices. |
