Publications de Antonio Paone | EPFL Graph Search

Coating for optical and electronic applications

Andreas Schueler, Josef Andreas Schuler, Anna Krammer, Antonio Paone

Single- or multilayered coating, such as a selective solar absorber coating or a coating being part of an integrated electronic circuit, comprising one or more layers containing germanium (Ge) doped VO2+x, where -0.1 ≤ x ≤ 0.1. ...

2017

Electrothermal actuation of vanadium dioxide for tunable capacitors and microwave filters with integrated microheaters

Mihai Adrian Ionescu, Andreas Schueler, Clara-Fausta Moldovan, Montserrat Fernandez-Bolanos Badia, Wolfgang Amadeus Vitale, Antonio Paone, Luca Petit

We report the fabrication, modeling and characterization of novel microwave tunable capacitors based on the metal-insulator transition (MIT) of Vanadium Dioxide (VO2) as a future replacement solution for microelectromechanical capacitive switches. We prese ...

Elsevier Science Sa2016

Investigation of the metal-insulator transition in VO2 for Electronic Switches with Sub-1mV/Decade Steep Subthreshold Slope

Mihai Adrian Ionescu, Andreas Schueler, Josef Andreas Schuler, Clara-Fausta Moldovan, Wolfgang Amadeus Vitale, Antonio Paone

We report a thorough investigation of the electrically-induced metal-insulator transition in vanadium dioxide (VO2) for abrupt switching in 2-terminal devices (0.24 mV/dec at 25 °C, 0.38 mV/dec at 50 °C). We exploit the electrothermal actuation model based ...

IEEE2016

Temperature-dependent multiangle FTIR NIR-MIR ellipsometry of thermochromic VO2 and V1-xWxO2 films

Rosendo Sanjines, Andreas Schueler, Antonio Paone

VO2 and W-doped VO2 thin films were prepared by Radio Frequency (RF) reactive magnetron sputtering using V-metal target. The amount of W doping was quantified by Rutherford Backscattering Spectrometry (RBS). The optical constants of VO2 and V1-xWxO2 films ...

Pergamon-Elsevier Science Ltd2015

Fabrication of CMOS-compatible abrupt electronic switches based on vanadium dioxide

Mihai Adrian Ionescu, Clara-Fausta Moldovan, Josef Andreas Schuler, Wolfgang Amadeus Vitale, Antonio Paone

Vanadium dioxide thin films were deposited on amorphous SiO2-coated Si substrates, by reactive magnetron sputtering at 490 °C of a pure vanadium target. The deposition parameters were optimized in order to maximize the resistivity modulation due to the met ...

Elsevier2015

CMOS-compatible abrupt switches based on VO2 metal-insulator transition

Mihai Adrian Ionescu, Andreas Schueler, Clara-Fausta Moldovan, Wolfgang Amadeus Vitale, Antonio Paone

2015

Influence of doping in thermochromic V1−xWxO2 and V1−xAlxO2 thin films: Twice improved doping efficiency in V1−xWxO2

Jean-Louis Scartezzini, Andreas Schueler, Rosendo Sanjines, Antonio Paone

The parameters of thermal evaporation and magnetron sputtering deposition were optimized for fabrication of vanadium dioxide thin films. The O2 partial pressure during film deposition is critical for obtaining a pure VO2 phase. Thermochromic V1−xWxO2 (x = ...

Elsevier2015

Tunable Capacitors and Microwave Filters Based on Vanadium Dioxide Metal-Insulator Transition

Mihai Adrian Ionescu, Clara-Fausta Moldovan, Josef Andreas Schuler, Wolfgang Amadeus Vitale, Montserrat Fernandez-Bolanos Badia, Antonio Paone

We report the fabrication, modeling and characterization of novel microwave tunable capacitors based on the metal-insulator transition (MIT) of Vanadium Dioxide (VO2). We present the advantages of VO2-based capacitors over alternative technologies for micr ...

2015

Steep slope VO2 switches for wide-band (DC-40 GHz) reconfigurable electronics

Mihai Adrian Ionescu, Andreas Schueler, Antonios Bazigos, Wladyslaw Grabinski, Montserrat Fernandez-Bolanos Badia, Wolfgang Amadeus Vitale, Antonio Paone

IEEE2014

Thermal solar collector with VO2 absorber coating and V1-xWxO2 thermochromic glazing – Temperature matching and triggering

Andreas Schueler, Rosendo Sanjines, Antonio Paone, Mario Geiger

Overheating is a common problem both with the use of active and passive solar energy in thermal solar energy systems and in highly glazed buildings, even in central European latitudes. In solar thermal collectors, the elevated temperatures occurring during ...

2014