Advanced Materials for Engineering Applications – Page 38

Fabrication of the α–Fe2O3 nanowires and application of the photodetector/optical switching

Hsu L.C., Li Y.Y., National Chung Cheng University, TW

In this study, we demonstrate a rapid and easy method to synthesis α-Fe2O3 nanowires (NWs). The density of the α-Fe2O3 NWs were successfully control by different thickness of Fe thin film within 10 hours by [...]

Layered nanocomposites of plate-like particles and polymers

Zhang Y., Evans J.R.G., University College London, UK

Clay-polymer nanocomposites have emerged as a new class of material in recent years because a low addition of clay (<5 wt.%) in a polymer matrix causes significant improvement in material properties. They represent the low [...]

Multiferroic StTiO3/BiFeO3 Superlattice:Theory and Experiment

Roy A., Garg A., Prasad R., Auluck S., Indian Institute of Technology Kanpur, IN

Materials designing using the concept of artificial layered structures has opened up a new vista in process engineering owing to the possibility of evolving unusual and novel functional properties which are often not found in [...]

Magnetic nanoparticles as components of magnetoresistance sensors: the gGMR-sensor

Weddemann A., Ennen I., Regtmeier A., Hütten A., Zahn M., Massachusetts Institute of Technology, US

Superparamagnetic microbeads and nanoparticles have a wide range of applications. Due to their magnetic stray field they influence soft magnetic material nearby which allows for the magnetic recognition of such particles by magnetoresistive sensors. Such [...]

High-Efficiency Optical Absorbers Derived from Carbon Nanostructures

Kaul D.B., Coles J.B., Megerian K.G., Eastwood M., Green R.O., Pagano T., Bandaru P.R., Jet Propulsion Laboratory, US

High-Efficiency Optical Absorbers Derived from Carbon Nanostructures Anupama B. Kaul,1 (*)James B. Coles,1 Krikor G. Megerian,1 M. Eastwood,1 R. O. Green,1 T. Pagano,1 and Prabhakar R. Bandaru2 1Jet Propulsion Laboratory, California Institute of Technology, Pasadena, [...]

Brittle Ductile Transition in Carbon Nanotube Bundles

Cornwell C.F., Allen J.B., Marsh C., Carlson T., Stynoski P., Newcomb B., Masters B., Ebeling R., Welch C.R., U.S. Army Engineer Research and Development Center, US

Carbon nanotubes (CNTs) attract considerable interest because of their extremely high stiffness, strength, and electrical and thermal conductivity. While the strength and stiffness of CNTs can be extremely high, bundles composed of aligned CNTs are [...]

Laser Writing of Metallic Nanostructures in a Polymer Matrix with Applications to Metamaterials

Shukla S., Vidal X., Furlani E.P., Swihart M.T., Prasad P.N., Harvard University, US

We present a novel laser-based method for directly writing metallic nanostructures in a polymer matrix with sub-wavelength resolution [1]. The method involves two-photon lithography (TPL) in which a femtosecond-pulsed laser induces two-photon initiated in situ [...]

Sub-wavelength metal nanostructure fabrication by parallel dip-pen nanolithography

Jang J-W, Nettikadan S., NanoInk Inc, US

Metal nanostructures in sub-wavelength scale have attracted interests in materials engineering and optics research. Metal nanostructures in sub-wavelength scale have been used as plasmonic diffraction gratings and negative index metamaterials. E-beam lithography has been commonly [...]

Nanostructured Materials & Devices

The Effect of Various Binder Additions on the Magnetic Properties of Soft Magnetic P/M Cores

Kim H.-J., Kim K.S., Kim S.I., Kim H.-J., Kim K.S., Kim S.I., Song J-J, Yoon S.C., Kim H.-J., Kim K.S., Kim S.I., Inje University, KR

Recently, there has been a growing demand for soft magnetic materials used in miniaturized electromagnetic devices with high performance, which can be used at a high frequency range. These applications include Switch Moded Power Supply, [...]