ES – Page 6 – TechConnect Briefs

Simultaneous Tip and Base Growth of Carbon Nanotubes Produced by RF Plasma Enhanced CVD

García-Céspedes J., Pascual E., Bertran E., IN2UB, Universitat de Barcelona, ES

In this work, carbon nanotubes (CNTs) with curly and straight segments were synthesized by means of radio-frequency plasma enhanced chemical vapour deposition (rf-PECVD) onto silicon substrates, using Fe as the catalyst material. The origin of [...]

Numerical Modeling for Comparison of Emitter-Base Designs of InGaP/GaAs Heterojunction Bipolar Transistors

, Universitat Politecnica de Catalunya, ES

In this work it is investigated the consequences of the design of the emitter pedestal in the electric DC and AC performance of GaInP/GaAs HBTs using numerical modeling TCAD tool. Two different HBTs are studied [...]

3-D Analytical Models for the Short-Channel Effect Parameters in Undoped FinFET Devices

Hamid H.A., Roig J., Universitat Rovira i Virgili, ES

We present 3-D analytical models for subthreshold swing, threshold voltage and threshold volatge roll-off of undoped FinFET devices. After solving the 3-D Poisson equation, in which the mobile charge term was included, we have obtained [...]

Toxicogenomics study of nanomaterials on the model organism zebrafish

Rojo I., Uriarte M., Obieta I., Bustero I., Egizabal A., Pardo M.A., Martínez de Ilárduya O., Azti-Tecnalia, ES

The applications of nanomaterials include fields as biomedicine, cosmetics or food science, raising a concern about the need to determine their toxic effects. Most of the toxicity tests are based on the analysis of classical [...]

DC to RF Small-Signal Compact DG MOSFET model

Lázaro A., Moldovan O., Cerdeira A., Fjeldly T.A., Universitat rovira i Virgili (URV), ES

In this paper we present a complete compact model for doped DG MOSFETs which includes explicit expressions of the channel current and of all small- and large-signal parameters. The model is based on a unified [...]

Production of Nanodots by Ion Sputtering on Mechanical Polished (110) Si-Substrates

Ballesteros C., Rodríguez T., Rodríguez T., Universidad Carlos III de Madrid, ES

We report a new method to deposit Cu nanocrystals by 5kV Ar+ ion sputtering of Cu metallic ribbons at glazing incidence, 8º, on top of (110) Si-substrates mechanical polished down to a 0.1 μm finish. [...]

Compact Model of Multiple-gate SOI MOSFETs

Iñiguez B., Hamid H.A., Jiménez D., Roig J., Universitat Rovira i Virgili, ES

In this work we present compact modelling schemes, for the undoped nanoscale multiple-gate MOSFET, suitable for design and projection of these devices. The proposed models have a physical basis and assume well-tempered multiple-gate MOSFETs; i.e., [...]

Carbon Coated Magnetic Nanoparticles for Local Drug Delivery using Magnetic Implants

Fernández-Pacheco R., Ibarra M.R., Valdivia J.G., Marquina C., Serrate D., Romero M.S., Gutiérrez M., Arbiol J., Institute of Nanoscience of Aragon, ES

Bioferrofluid obtained using iron coated nanoparticles are promising candidates for magnetic drug delivery. The carbon cages made the particles biocompatibles and provide a suport for drug adsortion. We propose a new method in which gold [...]

Glucose Sensors Based on Glucose Oxidase Immobilized in Polypyrrole-Polyacrylamide Microparticles

Rubio-Retama J., Mecerreyes D., University Complutense, ES

Soluble, polypyrrole has been synthesized by the incorporation of the sulphonate dopant anion which renders the polymer soluble in water. The soluble polypyrrole was incorporated in the aqueous phase of a W/O concentrated emulsion, together [...]

Microstructure Changes Induced by Low-energy High-temperature Nitrogen Ion Implantation on Vanadium-Titanium Alloys

Varela M., García J.A., Rodríguez R., Ballesteros C., Univ. Carlos III de Madrid, ES

A detailed structural characterization of unimplanted and low-energy, nitrogen implanted V5at.%Ti alloy is presented. The alloys were produced by repeated arc melting in a high-purity He atmosphere. Samples were nitrogen-implanted at 1,2 kV and 1 [...]