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Andreas Schueler

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Publications associées (111)

Potential advantages of a multifunctional complex fenestration system with embedded micro-mirrors in daylighting

Andreas Schueler, André Gabriel Kostro, Ali Motamed, Jing Gong

Proper daylighting designs in interior spaces may reduce the energy costs of electric lighting and improve the productivity of occupants. This paper reports the potential advantages of a multifunctional complex fenestration system with embedded micro-mirro ...

Pergamon-Elsevier Science Ltd2016

In situ photoelectron spectroscopic characterization of reactively sputtered, doped vanadium oxide thin films

Rosendo Sanjines, Andreas Schueler, Olivia Valérie Charlotte Bouvard, Anna Krammer

Thin films of pure vanadium oxide (VOx) and Ge doped vanadium oxide (VOx:Ge) have been deposited by reactive magnetron sputtering on Si (100) substrates. These films were characterized by means of in situ X-ray photoelectron spectroscopy and ultraviolet ph ...

Wiley-Blackwell2016

CFSpro: ray tracing for design and optimization of complex fenestration systems using mixed dimensionality approach

Jean-Louis Scartezzini, Andreas Schueler, André Gabriel Kostro, Mario Geiger

Advanced optical ray tracing software, CFSpro, was developed for the study and optimization of complex fenestration systems (CFSs). Using an algorithm mixing 2D and 3D approaches, accurate computation of large numbers of rays in extruded geometries can be ...

Optical Soc Amer2016

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, Antonio Paone, Clara-Fausta Moldovan, Wolfgang Amadeus Vitale

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

In situ core-level and valence-band photoelectron spectroscopy of reactively sputtered tungsten oxide films

Andreas Schueler, Olivia Valérie Charlotte Bouvard, Anna Krammer

In this paper, we study tungsten oxides deposited by reactive magnetron sputtering. The total working pressure during deposition was varied in order to obtain different morphology. The effects on the electronic properties and chemical composition were stud ...

Wiley-Blackwell2016

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

Superhard, Antireflective Texturized Coatings Based on Hyperbranched Polymer Composite Hybrids for Thin-Film Solar Cell Encapsulation

Christophe Ballif, Yves Leterrier, Andreas Schueler, Franz-Josef Haug, Marina Aymara González Lazo

In this study, we demonstrate by simulation and experiment the antireflective (AR) performance of hyperbranched polymer (HBP) nanocomposites textures replicated from a moth-eye pattern using ultraviolet (UV) nanoimprint lithography. A UV-curable acrylated ...

2015

Optically-derived mechanical properties of glass fiber-reinforced polymer laminates for multifunctional load-bearing structures

Julia De Castro San Roman Fest, Thomas Keller, Andreas Schueler, André Gabriel Kostro, Anastasios Vassilopoulos, Carlos Pascual Agullo

This paper demonstrates how the translucency of glass fiber-reinforced polymer (GFRP) laminates allows the derivation of their mechanical properties through optical measurements. Spectrophotometric, goniophotometric and tensile experiments were performed o ...

SAGE Publications2015

Structural, electrical and magnetic characterization of in-situ crystallized ZnO:Co thin films synthesized by reactive magnetron sputtering

Andreas Schueler

Zn1-xCoxO (0 < x < 0.146) conductive thin films have been deposited by reactive magnetron sputtering of metallic Zn and Co targets at high pressure and temperature. The structural properties have been investigated by using X-ray diffraction (XRD) and X-ray ...

Elsevier Science Sa2015

Optical and structural analysis of sol-gel derived Cu-Co-Mn-Si oxides for black selective solar nanocomposite multilayered coatings

Aïcha Hessler-Wyser, Pierre Loesch, Martin Python, Andreas Schueler, Thomas Gascou, Yannik Antonetti, Olivia Valérie Charlotte Bouvard, Martin Joly, Marina Aymara González Lazo

In this paper, we report the preparation of the precursor solutions for the deposition of Cu-Co-Mn-Si oxides by a sot-gel method in order to produce black selective coatings for CSP receiver tubes. Their optical properties were investigated by means of spe ...

Elsevier2015

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

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

2015

Interference filter with angular independent orange colour of reflection and high solar transmittance, suitable for roof-integration of solar energy systems

Andreas Schueler, Josef Andreas Schuler, Martin Joly

olar glazing unit, suitable for photovoltaic modules and solar thermal collectors, comprising a substrate delimited by two main faces and a multi-layered interference filter also delimited by two main faces, one main face of said substrate being adapted to ...

2015

Glazing with embedded microstructures for daylighting and seasonal thermal control

Andreas Schueler, André Gabriel Kostro, Josef Andreas Schuler

A glazing for daylighting and seasonal thermal control, the glazing including a pane defined between an outside-oriented interface and an inside-oriented interface, the pane comprising a first component and a second component, wherein the first component h ...

2015

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

Rosendo Sanjines, Jean-Louis Scartezzini, Andreas Schueler, 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

Method for hardening a coating of a solar collector element, and elements produced by means of said method

Andreas Schueler, Josef Andreas Schuler, Martin Joly

The invention relates to a method for hardening a coating of a solar collector element, said element including a conductive material or a conductive layer. The invention is characterised in that the coating is hardened by induction heating. ...

2015

Total light transmittance of glass fiber-reinforced polymer laminates for multifunctional load-bearing structures

Julia De Castro San Roman Fest, Thomas Keller, Andreas Schueler, Anastasios Vassilopoulos, Carlos Pascual Agullo

The total light transmittance of hand lay-up glass fiber-reinforced polymer laminates for building construction was investigated with a view to two architectural applications: translucent load-bearing structures and the encapsulation of photovoltaic cells ...

SAGE Publications2014

Diffuse light transmittance of glass fiber-reinforced polymer laminates for multifunctional load-bearing structures

Julia De Castro San Roman Fest, Thomas Keller, Andreas Schueler, André Gabriel Kostro, Anastasios Vassilopoulos, Carlos Pascual Agullo

The diffuse light transmittance of hand lay-up glass fiber-reinforced polymer (GFRP) laminates was investigated. Spectrophotometric experiments were performed on unidirectional and cross-ply glass fiber-reinforced polymer specimens with fiber volume fracti ...

SAGE Publications2014

Reactively sputtered coatings on architectural glazing for coloured active solar thermal façades

Jean-Louis Scartezzini, Andreas Schueler, Martin Joly, Stefan Mertin, Virginie Hody-Le Caër

Covering a standard solar thermal collector with a coloured glazing, which is opaque to the human eye but highly transparent to solar energy, permits a perfect architectural integration of solar panels into glazed building façades. The colours are based on ...

Elsevier2014

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

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

IEEE2014

Light diffusion in GFRP laminates for building construction

Julia De Castro San Roman Fest, Thomas Keller, Andreas Schueler, André Gabriel Kostro, Carlos Pascual Agullo

The light diffusion of hand lay-up glass fiber-reinforced polymer (GFRP) laminates was investigated with a spectrophotometric set-up using an integrating sphere. Reinforcement weights of the laminates ranged from 410 to 3280 g/m2 and fiber volume fractions ...

2014

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