US – Page 103 – TechConnect Briefs

Ambient Temperature Synthesis and Sintering of Conductive Aqueous Copper Inks

Druffel T., Jha M., Dharmadasa R., University of Louisville, US

Conducting films are becoming increasingly important for the printed electronics industry with applications in various technologies including antennas, RFID tags, photovoltaics, flexible electronics and displays. To date, expensive noble metals have been utilized in these [...]

Water Synthesis of Glutathione- capped Cadmium Selenide Quantum Dots and Stabilization by PVP coating at Room Temperature

Arroyo-Vizcarrondo S.A., Beltran-Huarac J., Morell G., Primera-Pedrozo O.M., Universidad Metropolitana, US

Various nanomaterials have been developed throughout the decades, but quantum dots (QDs) have represented one of the successful new biological probes due to their optical properties coming from the semiconductor core material. CdSe QDs were [...]

Nanoparticles: Synthesis and Film Deposition Using a Simple and Fast Centrifuge Sedimentation Method

Wang J-S., Markelonis A.R., Wai C.M., Brown G.J., Air Force Research Laboratory, US

Gold nanoparticles were prepared by reduction of gold cations suspended in sodium bis(2-ethylhexyl)sulfosuccinate (AOT) water-in-hexane microemulsions with another AOT microemulsion containing a reducing agent NaCNBH3. The size of the Au nanoparticles can be controlled by [...]

A High-throughput Electrospray Nozzle for Nanoparticle Production

Fu H., Hoerr R.A., Ryan P.J., Nanocopoeia, Inc, US

Electrospray is well-known for its capability of producing monodisperse particles with sizes ranging from a few nanometers to micrometers. Even though electrospray has been used in a wide range of research areas, its low throughput [...]

Uniform Melt State Process For The Production Of Nanostructured Materials

Redjdal M., Hadidi K., Sundaram S.K., Amastan LLC, US

Existing processes for the production of nanostructured composite materials suffer from non-homogeneity of feedstock and non uniformity of thermal processing path. Amastan’s UniMelt™ process solves both problems through the use of uniform temperature profile microwave [...]

Nano-Silicon and Non-Oxide Ceramics Synthesis via Gas-phase Sodium Reduction Aerosol Reactor

Schimmoeller B., Massey K., Kodas T., Smith G., Kutsovsky Y., Cabot Corporation, US

The largest volumes of nano-particles in consumer products include carbon black for reinforcement applications (e.g. tires), silicon dioxide (SiO2) as rheology agent (e.g. silicones) and titanium dioxide (TiO2) in pigments and photocatalysts. All of those [...]

Charge Amplification of a Graphene-integrated-CMOS (GIC) RF Detector

Ordonez R.C., Hayashi C., Kamin N., de Andrade M.C., Garmire D., University of Hawaii at Manoa, US

A novel approach is demonstrated to characterize the charge amplification of mono-layered graphene as an integral part of a Complementary Metal Oxide Semiconductor Device (CMOS) under RF radiation. We have verified that charge carriers generated [...]

Soluble Graphene Hybrid Composite (GHC) by Physical Functionalization

Le G.V., Le T.M., Dinh D., Dinh H., Dinh D., Dinh H., Nguyen K.C., Nguyen T.T., Nguyen K.C., Nguyen T.T., Le G.V., Le T.M., DHK GRAPHENOLOGIES LLC, US

Generally speaking, the CVD process of CH4 gas on copper substrate renders a rigid and conductive film from extended graphene molecule which is hard to be produced in large scale. The graphene oxide (GO) is [...]

3-D characterization of carbon nanotube-polymer composites using scanning electron microscopy and confocal Raman microscopy

Zhao M.H., Cannara R.J., National Institute of Standards and Technology, US

3D characterization of the dispersion of CNTs in a polymer matrix is a critical step toward understanding and improving the performance of CNT polymer composites. In this study, SEM and confocal Raman microscopy (CRM) were [...]

Pulsed Laser Deposition of Carbon Nanomaterials

Mozet W.T., Tse S.D., Kear B., Chhowalla M., Cheong S-W, Rutgers University, US

Nanostructured graphite and few-layer graphene (FLG) have been grown on copper and silicon substrates via pulsed laser deposition (PLD). Our PLD setup utilizes a high power Nd:YAG laser (266 and 532 nm) to ablate a [...]