ZnO – TechConnect Briefs

Solution Grown Nanostructured Ceramic Coatings for Photocatalytic and Antibacterial Surface

Tao T., Cho J., Binghamton University, US

Ceramics coatings have received great attention for use as a functional surface, as well as a protective and barrier coating. We report a low-temperature hydrothermal processing of nanostructured ceramic coatings that enable their surface to [...]

Effects of Mn doping on Grain and Grain Boundary Properties of Bi2WO6-based ZnO Varistor using Dielectric Functions for Surge Protection Application

Hong Y.W., Ha M.J., Paik J.H., Cho J-H., Jeong Y.H., Yun J.S., Park W.I., Korea Institute of Ceramic Engineering & Technology, KR

Polycrystalline ZnO has been applied to various electrical and optical applications such as gas sensors, piezoelectric transducers, phosphors, transparent conducting films, and varistors. To control the figure of merits of these devices it is essential [...]

Effects of Ca doping on Grain and Grain Boundary Properties of ZnO-Zn2BiVO6-Co3O4 Ceramics using Dielectric Functions for Surge Arrestor

Hong Y.W., Ha M.J., Paik J.H., Cho J-H., Jeong Y.H., Yun J.S., Park W.I., Korea Institute of Ceramic Engineering & Technology, KR

Polycrystalline ZnO has been applied to various electrical and optical applications such as gas sensors, piezoelectric transducers, phosphors, transparent conducting films, and varistors. To control the figure of merits of these devices it is essential [...]

Zinc Oxide optical and chemical sensors fabricated by Ink Jet printing and drop casting

Ewing D.J., Casper M., Stramel A., Morick B., Cook B., Wu J., The Department of Energy's Kansas City National Security Campus, US

Zinc oxide (ZnO) nanostructures show great promise for a variety of applications, such as UV detectors, chemical, and gas sensors. Zinc oxide has a direct bandgap (3.4 eV), a high electron mobility, and environmental stability. [...]

Two routes for cobalt doping in ZnO nanostructures

Hari P., University of Tulsa, US

Two routes for cobalt doping in ZnO nanostructures Controlled growth of ZnO nanorods on various substrates is of great importance in photonic and electronic devices. Also of interest is increasing the optical activity of zinc [...]

Hydrophobic treatment for jute fibres based on zinc oxide nanoparticles

Arfaoui M.A., Dolez P.I., Dubé M., David É., CTT Group, CA

The use of zinc oxide (ZnO) nanoparticles in the textile sector has been the subject of several studies aimed at making fibrous materials multifunctional and more resistant. This could open a wide range of new [...]

Quantum-Confinement Effects on Oscillator Strength in ZnO Quantum Dots

Tit N., UAE University, AE

We present a theoretical investigation of the quantum confinement effects (QC) on the electronic and optical properties of ZnO quantum dots (QDs) embedded in MgO matrix. The latter material acts a huge barrier for both [...]

ZnO nanorods decorated with Au nanoparticles applied as gas sensors

Gasparotto G., Mazon T., Gasparotto G., Silva R.A., Zaghete M.A., Perazolli L.A., Varela J.A., CTI, BR

Zinc oxide (ZnO) is a n-type semiconductor with energy band gap of 3:37 eV and a large binding energy of 60 meV at room temperature. ZnO nanostructures can be easily obtained with different morphologies by [...]

ZnO-Based Inverters for Flexible Electronics

Gutierrez-Heredia G., Mejia I., Rivas-Aguilar M.E., Aguirre-Tostado F.S., Quevedo-Lopez M.A., The University of Texas at Dallas, US

We report the development of low power ZnO-based inverters. Inverters were evaluated as function of gate dielectric thicknesses and electrically characterized at several power supply voltages. The logic inverters gain increases one order of magnitude [...]

Effects of ZnO buffer layer and depth profiling analysis of bulk heterojunction organic solar cells

Mbule P.S., Kim B.S., Kim T-H., Kim B.S., Kim T-H., Swart H.C., Ntwaeaborwa O.M., University of the Free State, ZA

Bulk heterojunction organic solar cells (BHJs) with ZnO nanoparticles buffer layer between the active layer and the aluminum (Al) top electrode were fabricated. The BHJs comprised of successive layers of poly(3,4ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), a blend of [...]