Study abroad opportunities for science and engineering students

nanojapanAs a TU sophomore studying abroad with NanoJapan, Zak Bennett was able to participate in the fabrication and electrical transport characterization of ballistic rectifier samples by utilization of a substrate, electron beam microscope and wet chemical etching currently being conducted by the Inoue lab in Osaka, Japan.

The results of work on this research project will help to create the most efficient design for ballistic rectifiers and utilize InAs properties to obtain room temperature rectification effects in future devices. Rectifiers turn AC electrical signals into DC signals and currently diode-based rectifiers that are able to operate up to the GHz range, but higher frequencies still remain out of reach.

Ballistic rectifiers rely on the unencumbered, or ballistic, conduction of electrons to operate at extremely high frequencies up to the THz. Ballistic rectifiers are ideal for use in high-speed (THz) applications as their only limiting factor is the very small distance the electron must travel within the two-dimensional electron gas boundaries.