AIP Advances (Sep 2016)

Selective growth of tilted ZnO nanoneedles and nanowires by PLD on patterned sapphire substrates

  • Alexander Shkurmanov,
  • Chris Sturm,
  • Jörg Lenzner,
  • Guy Feuillet,
  • Florian Tendille,
  • Philippe De Mierry,
  • Marius Grundmann

DOI
https://doi.org/10.1063/1.4963076
Journal volume & issue
Vol. 6, no. 9
pp. 095013 – 095013-5

Abstract

Read online

We report the possibility to control the tilting of nanoneedles and nanowires by using structured sapphire substrates. The advantage of the reported strategy is to obtain well oriented growth along a single direction tilted with respect to the surface normal, whereas the growth in other directions is suppressed. In our particular case, the nanostructures are tilted with respect to the surface normal by an angle of 58°. Moreover, we demonstrate that variation of the nanostructures shape from nanoneedles to cylindrical nanowires by using SiO2 layer is observed.