US – Page 279 – TechConnect Briefs

A Novel Technique for Purification and Segregation

Mangir T., Chaves J., Chaves S., Khairatkar M., Chaves J., Chaves S., California State University Long Beach, US

In paper we describe a technique to purify and segregate carbon nano tubes (CNTs) from the iron impurities to use the CNTs for thin films. After extensive research into a proper and repeatable cleaning process [...]

Bismuth Triiodide Sheets Assisted Growth of Cadmium Sulfide Binary Crystals and Branched Nanowires in Solution

Li H.Y., Jiao J., Portland State University, US

Semiconductor nanowires demonstrate their potential in the fabrication of electronic and optic nanodivices. As one of the most important II-VI group semiconductors, CdS nanowires have been synthesized by metal catalyzed vapor-liquid-solid (VLS) and vapor-solid (VS) [...]

PECVD synthesis of Si nano-wires

Kravcheko I.I., University of Florida, US

Silicon nano-wires 42 nm in diameter and up to 70 micrometer long have been obtained by utilizing a common for an average nano-fabrication facility plasma equipment set that did not require special modifications.

Vapor Deposited Nanolaminates

Kobrin B., Grimes M., Dangaria N., Applied Microstructures, Inc., US

We present the latest developments in nanocoatings deposition technology, realized using Molecular Vapor Deposition (MVD®) method. Multi-layer nanolaminates of metal oxides (alumina, titania, silicon oxide, …etc.) and self-assembled monolayers (SAMs) sequentially deposited using an automated [...]

Large scale synthesis of SiC nanofibers from various carbon precursors

Ritts A.C., Li H., Yu Q., University of Missouri-Columbia, US

In this proceeding submicron and micron sized graphitic particles were compared with MWNTs as precursors for producing several grams of SiC nanofibers in a 3’’ diameter hot-walled chemical vapor deposition reactor. Nickel nitrate and the [...]

INGAAS/GAAS Quantum Dot With Material Mixing

Filikhin I., Suslov V.M., Vlahovic B., North Carolina Central University, US

We model an InGaAs/GaAs quantum dot having dependence of the Ga fraction along vertical axis. The effect of material mixing on the electron energy spectra is considered. This theoretical model is based on a single [...]

Nanomaching of Silicon nanoporous Structures by Colloidal Gold Nanoparticle

Zhu J., Bart-Smith H., Begley M.R., Kelly R.G., Zangari G., Reed M.L., University of Virginia, US

We report an efficient method for fabricating nanoporous structures in crystalline silicon, using colloidal gold nanoparticles in HF/H2O2 etchant. Colloidal gold in HF/H2O2 solutions accelerates the etching rate by two orders of magnitude and simultaneously [...]

A Novel Technique for Purifiction and Segregation of CNT Using Inkjet Technology

Chaves J.S., Chaves S., Chaves J.S., Chaves S., Mangir T., California State University Long Beach, US

Since Carbon Nanotubes (CNT) were discovered in the early 90’s a whole new research field has evolved. CNTs have many properties that make them desirable for the construction of nano-scale Electronics. One area that is [...]

Templated Self-Assembly of 5 nm Gold Nanoparticles

Ocola L.E., Lin X-M., Argonne National Laboratory, US

Combining top-down electron beam lithography and bottom-up colloidal chemical assembly can potentially lead to large scale patterning of nanocrystals on arbitary substates. Our approach consists of fabrication of templates from hydrogen silsesquioxane (HSQ) on treated [...]

A Novel Self-Assembled and Maskless Technique for Highly Uniform Arrays of Nano-Holes And Nano-Pillars

Wu W., Dey D., Memis O.G., Katsnelson A., Mohseni H., Northwestern University, US

We present a low-cost and high-throughput process for realization of two-dimensional arrays of deep sub-wavelength features using a self-assembled monolayer of HCP silica and polystyrene microspheres and well-developed photoresist lithography. This method utilizes the microspheres [...]