absorption – TechConnect Briefs

Mesoporous Alumina Affinities for Metals as a Function of pH

Hepburn R., Fujimi Corporation, US

One important application for mesoporous alumina is as the adsorbent for retaining Molybdenum-99m in the Molybdenum/Technetium generators used for medical imaging throughout the world. In 2016, Fujimi created a novel mesoporous alumina material that could [...]

Interaction of a millimeter sized droplet on the powder substrates and study of capillarity in porous media flow

Avhad A.G., Tan H., Washington State University, US

Droplet impact on powder materials is a ubiquitous phenomenon in nature and engineering technologies including powder-binder based 3D printing, wet granulation, spray drying, powder coating, agricultural sprays, water erosion of soil, and raindrops landing on [...]

Thermal and Optical investigation of Y2O3 nanocrystalline phosphors

Tatar D., Kaygusuz H., Tezcan F., Erim B., Ovecoglu M.L., Ozen G., Istanbul Technical University, TR

The chemical decomposition technique was used to sythesize Y2O3 nanophospors. This technique (to our knowledge, a new technique used to synthesize Y2O3 nanocrystalline phosphors) is based on the thermal decomposition of Yttrium alginate gels. The [...]

Conductance Enhancement of Nanoparticulate Indium Tin Oxide Layers Made by Printing Technique

Gross M., Maksimenko I., Faber H., Linse N., Wellmann P.J., University Erlangen-Nuremberg, DE

To improve their conductance we applied several treatments on nanoparticulate indium tin oxide (In2O3:Sn, ITO) layers: post bake, infiltration by an ITO precursor solution with subsequent sol-gel transformation into ITO, treatment with etching agents as [...]

Fabrication of CuO Nanofilm preparation by Electrophoretic Deposition

Chang H., Wei C.H., National Taipei University of Technology, TW

This paper uses electrophoretic deposition for coating a self-fabricated CuO nanofluid on a stainless steel substrate and measures the nature of this nanofilm. The pH value of the fabricated CuO nanofluid is 6.0, with a [...]

Optical Absorption Modeling of Arbitrary Shaped Nanoparticles

Mullin P., Kozlowski G., Kozlowski P.G., Kozlowski G., Kozlowski P.G., Busbee J.D., Jones J.G., Wright State University, US

A method for modeling the optical absorption spectra of nanosize metal particles is demonstrated. Computer software has been developed to generate the absorption spectra from the particles geometry and material properties. The software breaks the [...]

Model of Photovoltage Response of Bacteriorhodopsin in PVA Films

Frydrych M., Lensu L., Aschi C., Parkkinen J., Parkkinen S., Parkkinen J., Parkkinen S., Jaaskelainen T., Lappeenranta University of Technology, FI

Bacteriorhodopsin (BR) is a light-transducing protein contained in a purple membrane of microorganism Halobacterium salinarium. Natural function of BR is to act as a light-driven proton pump in energy balancing mechanism of the bacterium. Numerous [...]

Simulation Study of ZnTe-CdZnTe Based Asymmentric Step Strained Layer Quantum Well Infrared Photo-Detectors

Vaya P.R., Srinivasan R., ITT Madras, IN

A AnTe - CdZnTe system based asymmetric step quantum well structures have been analyzed and the effects of step discontinuity, well discontinuity, well width, and step with on absorption coefficient and detectivity, which have a [...]