Nanotube surface arrays: weaving, bending, and assembling on patterned silicon.
We report the fabrication of ordered arrays of oriented and bent carbon nanotube on a patterned silicon surface with a micron scale spacing extending over millimeter size surface areas. We suggest that the patterning is controlled by the hydrodynamic behavior of a fluid front and orientation and bending mechanisms are facilitated by the pinned carbon nanotubes trapped by the liquid-solid-vapor contact line. The bending of the pinned nanotubes occurs along the shrinking receding front of the drying microdroplets. The formation of stratified microfluidic layers is vital for stimulating periodic instabilities of the contact line.
Materials Science & Engineering Department, Iowa State University, Ames, Iowa 50011, USA. vladimir@iastate.edu
Vladimir V
VV
Tsukruk
Hyunhyub
H
Ko
Sergiy
S
Peleshanko
D040761:Biomimetic Materials / Q000737:chemistry; D019295:Computational Biology; D004247:DNA / Q000737:chemistry; D057927:Hydrophobic and Hydrophilic Interactions; D018625:Microscopy, Atomic Force; D008968:Molecular Conformation; D036103:Nanotechnology / Q000379:methods*; D037742:Nanotubes, Carbon / Q000737:chemistry*; D013499:Surface Properties
D037742:Nanotubes, Carbon; D004247:DNA