|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Late News Posters
||PP-23: Modified Rayleigh Plateau Distribution of Dewet Metal Nanoparticles by Varied Solid-Liquid-Vapor and Solid-Liquid-Solid Interactions
||Benjamin White, Nicholas Roberts
|On-Site Speaker (Planned)
There has yet to be evidenced a non-lithographic, scalable process that will produce narrow distributions of diameter and chirality in as grown CNTs. A possible method of attacking this problem is to narrow the diameter and pitch distributions of the catalytic nanoparticles CNTs are grown from. Here we demonstrate a method to reduce the diameter and pitch distributions of Ni nanoparticles, dewet via laser pulse, by transitioning from a solid liquid vapor interaction to a solid-liquid-solid interaction through the introduction of Al2O3 capping layers. Samples were fabricated in a cleanroom, with thin films (5-20 nm) being deposited via sputtering or atomic layer deposition, and dewet via laser pulse. SEM results show both a reduction in the mean and a narrowing of the diameter and pitch distributions with the application of the capping layers. The effect is less pronounced with increasing capping layer thickness.