Abstract / Description of output
Regioregular poly(3-hexylthiophene) (RR-P3HT) nanotubes (200 nm in diameter) with tunable aspect ratios from 25 to 300 were prepared using a polymer melt wetting technique. Aspect-ratio tunability was achieved by controlling the wetting behavior of RR-P3HT melts in a template. The crystallinity and chain orientation of RR-P3HT were studied by grazing incidence X-ray diffraction, wide-angle X-ray diffraction, and polarized photoluminescence spectroscopy. Results suggest that RR-P3HT chains in the lamellar structure prefer to be perpendicular to the axis of the RR-P3HT nanotubes, forming a face-on conformation in the RR-P3HT nanotubes that leads to increased carrier mobility of RR-P3HT. Field-effect transistors were fabricated based on a single RR-P3HT nanotube and showed a carrier mobility of 0.14 ± 0.02 cm2/V·s.
Original language | English |
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Pages (from-to) | 11874-11881 |
Number of pages | 8 |
Journal | ACS Applied Materials and Interfaces |
Volume | 6 |
Issue number | 15 |
DOIs | |
Publication status | Published - 13 Aug 2014 |
Keywords / Materials (for Non-textual outputs)
- AAO
- charge transport properties
- field-effect transistor
- nanotube array
- RR-P3HT
- tunable aspect ratios