Low-Temperature Sputtering Deposition of Aligned Polycrystalline CaCu3Ti4O12 Nanorods
January 25, 2010
Volume 93 Issue 1, Pages 51 – 54
Ednan Joanni, Raluca Savu, Bostjan Jančar, Paulo R. Bueno, José A. Varela Published Online: Oct 23 2009 10:55AM DOI: 10.1111/j.1551-2916.2009.03390.x
ABSTRACT Vertically aligned polycrystalline CaCu3Ti4O12 nanorods were obtained by rf sputtering at low substrate temperatures. The rods grow by electrostatic attraction and aggregation of charged clusters, independently of the substrate used. These nanostructures exhibit a strong nonlinear current × voltage behavior and high losses during cyclic testing, indicating a combination of Schottky’s barrier and Joule’s heating effects.