Journal
SOFT MATTER
Volume 5, Issue 8, Pages 1583-1586Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b822998h
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Funding
- National Science Foundation [CBET-0844084]
- Key Laboratory of Molecular Engineering of Polymers at Fudan University
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [1153660, 0844084] Funding Source: National Science Foundation
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A toluene solution of the semiconducting conjugated polymer regioregular poly(3-hexylthiophene) (rr-P3HT) was confined in a sphere-on-flat geometry, forming an axially symmetric, capillary-held microfluid, from which the consecutive stick-slip'' motion of the contact line of the solution via solvent evaporation was effectively regulated. As a result, hierarchical snake-skin'' like structures of high regularity were obtained where each microscopic ellipsoid within the snake-skin'' was composed of bundles of rr-P3HT nanofibers. This facile, one-step deposition technique based on controlled evaporative self-assembly opens up a new avenue for organizing semicrystalline conjugated polymers into two-dimensional ordered patterns in a simple, cost-effective, and controllable manner.
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