Single-Crystalline W-Doped VO2 Nanobeams with Highly Reversible Electrical and Plasmonic Responses Near Room Temperature

• Main Authors: Wang, Ning, Duchamp, Martial, Xue, Can, Dunin-Borkowski, Rafal E., Liu, Guowei, Long, Yi
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2016
• Subjects: metal-to-insulator transition; hydrothermal synthesis; nanobeams; surface plasmon resonance; vanadium dioxide
• Online Access: https://hdl.handle.net/10356/80518; http://hdl.handle.net/10220/40746
• Institution: Nanyang Technological University

Single-crystalline vanadium dioxide (VO2) nanostructures are of great interest because of their single-domain metal-to-insulator transition. In this paper, singlecrystalline W-doped VO2 nanobeams are synthesized for optical and electrical applications. As a result of differences in the polarization of the beams along their transverse and longitudinal axes, dual-surface plasmon resonance peaks at 1344 and 619 nm are generated, resulting in an increase in the solar modulating abilities of the VO2 nanobeams. The conductivity of the single-crystalline W-doped VO2 nanobeams changes by three to four orders of magnitude at the transition temperature, which is of great importance for electrical applications.