nanostructures – Page 3 – TechConnect Briefs

Nanoplates and their suitability for use as solar cells

Aagesen M., Sørensen C.B., SunFlake A/S, DK

The use of p-n junction nanowires as solar cells has received an increased amount of attention with results published on both individual silicon nanowires functioning as nano-solar cells[1] and on larger surface areas covered with [...]

Morphological, Crystalline and Photo-luminescent Property of Zinc Oxide Nanorod Array Controlled by Zinc Oxide Sol-gel Thin Film

Huang J-S, Lin C-F., National Taiwan University, TW

Our work provides a systematic study of controllable morphology, crystallinity and photoluminescence (PL) of ZnO nanorod array. Our investigation demonstrates that the pre-treatment conditions of the ZnO sol-gel thin-film have strong influences on the morphology, [...]

Preparation and applications of transition metal oxide nanofibres and nanolines

Tätte T., Paalo M., Part M., Kisand V., Lõhmus A., Kink I., University of Tartu, EE

Recently many nanoscale silica structures have been suggested for optics device design. For example silica nanoneedles are used for focusing light into spot some tens of nanometers in diameter and sub-wavelength diameter silica fibres are [...]

Synthesis of Nanostructures in Chlorine-Containing Media

Zaginaichenko S.Yu., Dubovoy A.G., Institute for Problems of Materials Science of NAS of Ukraine, UA

Modification of carbon nanostructures by different chemical elements opens an opportunity for synthesis of materials of a new generation for different applications. Filling carbon nanotubes with one or other element will allow for conferring different [...]

Fabrication of Luminescent Superparamagnetic CdSe-QDs/SiO2/Fe3O4 nanocomposite particles

Liu B., Wang D., Huang W., Xie W., Yu M., Yao A., Tongji University, CN

A new kind of water-soluble luminescent superparamagnetic nanocomposite particles has been synthesized using a modified Stöber method combined with an electrostatic assembly process. Fe3O4 nanoparticles with the size of 10 nm were uniformly coated with [...]

A Study about Surface Chemical-Physics Mechanisms Occurring for Interacting Metal Nanostructures / gas NO2

di Stasio S., Dal Santo V., National Research Council of Italy (CNR), IT

Zinc nanostructures synthesized with different morphologies from the same evaporation/condensation technique are studied with concern to surface reactivity to NO2 by Diffuse Reflectance Infrared Fourier Transformed Spectroscopy (DRIFTS). Synthesis of nanopowders is obtained, according to [...]

Synthesis of Porous Nanostructured Silica Particles by an Aerosol Templating Method

Jang H-D, Chang H., Park J.H., Kim T-O, Okuyama K., Korea Instittute of geoscience and Mineral Resources, KR

Silica nano-materials with meso- and macroporosity are of great interest due to their variety of potential applications. For the application as a catalytic supporter, nanostructured spherical silica particles having both mesopores and macropores were prepared [...]

Scanning probe-based fabrication of 3D nanostructures via affinity templates, functional RNA and meniscus-mediated surface remodeling

Chung S., Presley A.D., Elhadj S., Hok S., Hah S.S., Chernov A.A., Francis M.B., Eaton B.E., Feldheim D.L., DeYoreo J.J., Lawrence Berkeley National Laboratory, US

Developing generic platforms to organize discrete molecular elements and nanostructures into deterministic patterns at surfaces is one of the central challenges in the field of nanotechnology. Here we review three applications of the atomic force [...]

Fabrication and Characterization of Nanoscale Heating Sources (“Nanoheaters”) for Nanomanufacturing

Jogdand H., Gulsoy G., Ando T., Chen J., Doumanidis C.C., Gu Z., Gulsoy G., Rebholz C., Wong P., University of Massachusetts-Lowell, US

In macroscale manufacturing, active use of heat to alter the geometry, structure and properties of solids is central to material removal, deposition, joining, shaping, and transformation processes. However, traditional heat sources encroach difficulties with fine [...]

Quantitative Synchrotron Grazing Incidence X-ray Scattering and Reflectivity Analysis of Nano-structures and Patterns Supported with Substrates

Ree M., Yoon J., Heo K., Jin K.S., Jin S., Jin K.S., Jin S., Lee B., Park I., Park Y.H., Choi S.C., Kim G., Kim H., Kim J-S, Kim J., Kim K.W., Kim G., Kim H., Kim J-S, Kim J., Kim K.W., Oh W., Park I., Park Y.H., Hwang Y., Kim G., Kim H., Kim J-S, Kim J., Kim K.W., Kim G., Kim H., Kim J-S, Kim J., Kim K.W., Kim G., Kim H., Kim J-S, Kim J., Kim K.W., Chang T., Pohang University of Science & Technology, KR

Single-layer, multi-layer, and patterned nanostructures were fabricated with aids of substrates from various material systems (polymers, diblock copolymers, polymer blends, alumina precursors, silane precursor, etc.) using wet spin-coating and subsequent dry and thermal process, chemical [...]