DK – Page 3 – TechConnect Briefs

Bottom-up device simulations: modeling electrical currents on the atomic scale

Blom A., Stokbro K., QuantumWise A/S, DK

As device features approach atomic dimensions, simulations of electrical currents need to be based on a quantum-mechanical description of the system. New phenomena then appear which can be exploited for novel device functionality, but also [...]

Durability of Pt/MWCNT Nanocatalyst in High Temperature H3PO4/PBI PEMFC

Buazarand F., Khaledib H., Almoora K., Lia Q., Steenbergc T., Jensen J.O., Bjerruma N.J., technical university of denmark(DTU), DK

The newest development in the field of proton exchange membrane fuel cells (PEMFC) aims at higher operational temperatures above 100˚C [ ] which have been the main research focus at the Energy and Materials Science [...]

Silane-based water repellent and easy-to-clean surfaces for concrete structure improvement

Kargol M.A., Danish Technological Institute, DK

In addition to its civil engineering properties, concrete also has an architectural and aesthetic function. When the concrete structure ages, the visible appearance of the surface gradually changes as it is exposed to the environment, [...]

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 [...]

Increased Piezoresistive Effect in Crystalline and Polycrystalline Si Nanowires

Reck K., Richter J., Hansen O., Thomsen E.V., Technical University of Denmark, DK

This paper presents measurements of the size and doping dependence of the piezoresistive effect in top-down fabricated p-type crystalline and polycrystalline silicon nanowires. Test chips with 6 differently sized piezoresistors and integrated contacts for electrical [...]

Silane-based water repellent and easy-to-clean surfaces for concrete structure improvement

Kargol M.A., Danish Technological Institute, DK

In addition to its civil engineering properties, concrete also has an architectural and aesthetic function. When the concrete structure ages, the visible appearance of the surface gradually changes as it is exposed to the environment, [...]

Nanoparticle Formation in Supercritical Fluids – The World’s First Real Time In-situ Investigation

Jensen H., Bremholm M., Nielsen R.P., Joensen K.D., Chen Y-S, Almer J., Søgaard E.G., Iversen B.B., Iversen S.B., Iversen B.B., Iversen S.B., SCF-Technologies, DK

In this study the world’s first real time in-situ simultaneous small angle x-ray scattering (SAXS) and wide angle x-ray scattering (WAXS) characterization of supercritical nanoparticle formation was performed. In previous supercritical studies the reaction is [...]

Diode Laser Generated Ultrasound for Human Blood Cell Lysis

Ussing T., von Gersdorff L.C., FluimediX, DK

The lysing of human blood leukocyte cells prior to performing e.g. DNA analysis is performed on a routine basis in most biochemical labs. Well-established techniques include using a lysis agent or using mechanical methods such [...]

TailorMat® – Nanostructured Materials by Design using Supercritical Fluids

Iversen S.B., Foverskov M., Mateiu R., Jensen H., SCF-Technologies, DK

SCF-Technologies has build a technology platform for tailor-made nanostructured materials based on more than 10 years experience in the high pressure industry and an intensive effort in nanotechnology research. Using the special properties from supercritical [...]

First-principles Modeling of Magnetic Memory Components — Preliminary Results on the Effects of Interface Oxides

Stilling M., Stokbro K., Flensberg K., Atomistix, DK

Magnetotunnel junctions (MTJs), exhibiting high tunneling magnetoresistance (TMR), are currently being employed in new generations of hard disk drive (HDD) read heads and novel magnetic random access memory (MRAM) technology. We have modeled such spintronic [...]