Ordered horizontal Sb2Te3 nanowires induced by femtosecond lasers
- Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Physics
- Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Materials Science and Engineering
- Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Mechanical Engineering
- Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Physics; Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Materials Science and Engineering
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 in this paper, 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.
- Research Organization:
- Energy Frontier Research Centers (EFRC) (United States). Center for Solar and Thermal Energy Conversion (CSTEC)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); US Air Force Office of Scientific Research (AFOSR); National Science Foundation (NSF)
- Grant/Contract Number:
- SC0000957; FG02-06ER46339; FA9550-12-1-0465; DMR-0723032; DMR- 9871177; DMR-0315633
- OSTI ID:
- 1370099
- Alternate ID(s):
- OSTI ID: 1224306
- Journal Information:
- Applied Physics Letters, Vol. 105, Issue 20; Related Information: CSTEC partners with University of Michigan (lead); Kent State University; ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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