Catalytic Growth of Single-Crystalline V2O5 Nanowire Arrays†
Startup funding from the University at Buffalo is acknowledged for support of this work. We are grateful to Dr. Peter Bush and Dr. Yueling Qin for their assistance with SEM and HRTEM measurements. We gratefully acknowledge Prof. B. Weinstein for allowing access to his Raman system. J.M.V. acknowledges support from the NSF-funded LSAMP Bridge to the doctorate program.
Graphical Abstract
Arrays of V2O5 nanowires are grown on silicon substrates by a catalytic vapor–solid mechanism (see image). The obtained nanowires are single-crystalline and highly oriented with their lengths and substrate coverage controlled by the duration of the reaction, reaction temperature, and flow velocity. The growth of these nanowire arrays paves the way for the fabrication of novel battery architectures based on the charging/discharging of individual nanowires.
