Ordered horizontal Sb2Te3 nanowires induced by femtosecond lasers

Yuwei Li, Vladimir A. Stoica, Kai Sun, Wei Liu, Lynn Endicott, Jenna C. Walrath, Alex S. Chang, Yen Hsiang Lin, Kevin P. Pipe, Rachel S. Goldman, Roy Clarke Ctirad Uher

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Nanowires are of intense interest on account of their ability to confine electronic and phononic excitations in narrow channels, leading to unique vibronic and optoelectronic properties. Most systems reported to date exhibit nanowire axes perpendicular to the substrate surface, while for many applications (e.g., photodetectors and sensors), a parallel orientation may be advantageous. Here, we report the formation of in-plane Sb2Te3 nanowires using femtosecond laser irradiation. High-resolution scanning transmission electron microscopy imaging and element mapping reveal that an interesting laser-driven anion exchange mechanism is responsible for the nanowire formation. This development points the way to the scalable production of a distinct class of nanowire materials with in-plane geometry.

Original languageEnglish (US)
Article number201904
JournalApplied Physics Letters
Issue number20
StatePublished - Nov 17 2014

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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