large-area-substrate-based-nanofabrication-controllable-customizable

Large Area Substrate-Based Nanofabrication of Controllable and Customizable Gold Nanoparticles Via Capped Dewetting

Recent scientific advances in the utilization of metallic nanoparticle for enhanced energy conversion efficiency, improved optical device performance, and ...

Utah State University

Nanowires with higher tungsten (W) concentration and enhanced conductivity were grown via the laser assisted electron beam induced deposition (LAEBID) technique using tungsten hexacarbonyl W(CO)6 as the gas precursor. Periodic, pulsed laser irradiation facilitated CO desorption during growth by heating the deposit. Deposit purity improved with laser pulse width up to the threshold for pyrolytic laser chemical vapor deposition (LCVD). Higher resolution was also observed and was attributed to reduced CO incorporation and higher deposit density. The optimal composition and lowest resistivity was achieved by synchronizing the electron beam induced deposition and laser assist such that (1) the electron beam induced deposit is less than a monolayer per cycle and (2) the laser induced heating is just below the LCVD threshold. 

Nicholas A. Roberts

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