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Andreas Schueler

Cette personne a quitté l’EPFL

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Publications associées (111)

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Glazing

Andreas Schueler

Field of the invention The present invention relates to glazings which, in particular, may be used in solar collectors. In the present text, the term "glazing" means any material, e.g. glass or polycarbonate, transparent to visible electromagnetic radiatio ...

2003

Monte Carlo simulations of quantum dot solar concentrators: ray tracing based on fluorescence mapping

Jean-Louis Scartezzini, Andreas Schueler, André Gabriel Kostro

One promising application of semiconductor nanostructures in the field of photovoltaics might be quantum dot solar concentrators. Quantum dot containing nanocomposite thin films are synthesized at EPFL-LESO by a low cost sol-gel process. In order to study ...

SPIE2008

Towards microstructured glazing for daylighting and thermal control

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

Glass is a central element to modern architecture and can cover up to 100% of a building façade. The main purpose of large glazed areas is to create bright, comfortable and healthy spaces. It was shown that increasing natural light in offices reduces sickn ...

EPFL2011

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

Andreas Schueler, Rosendo Sanjines, Mario Geiger, Antonio Paone

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

Selective solar absorber coatings on receiver tubes for CSP - energy-efficient production process by sol-gel dip-coating and subsequent induction heating

Jean-Louis Scartezzini, Aïcha Hessler-Wyser, Andreas Schueler, Marina Aymara González Lazo, Martin Joly, Thomas Gascou

The energy efficiency of production processes for components of solar energy systems is an important issue. Other factors, which are important for the production of black selective solar coatings include production speed, cycle time and homogeneity of the ...

Elsevier Science Bv2014

Radio-Frequency Characteristics of Ge-doped Vanadium Dioxide Thin Films with Increased Transition Temperature

Mihai Adrian Ionescu, Andreas Schueler, Igor Stolichnov, Anna Krammer, Riyaz Mohammed Abdul Khadar, Matteo Cavalieri, Andrei Müller, Teodor Rosca, Fatemeh Qaderi Rahaqi

This work investigates and reports on the radio-frequency (RF) behavior in the frequency range of 5 – 35 GHz of germanium-doped (Ge-doped VO2) vanadium dioxide thin films, deposited on silicon substrates via sputtering and pulsed laser deposition (PLD) wit ...

2020

Optical and morphological characterisation of low refractive index materials for coatings on solar collector glazing

Jean-Louis Scartezzini, Andreas Schueler, Marie Schaer, Stefan Mertin, Martin Joly, Estelle De Chambrier, Virginie Hody-Le Caër

Nanostructured coatings based on the elements Si, O, Mg, and F have been deposited as thin films by solegel dip-coating in a particle-free atmosphere. The refractive index of the prepared SiO2 and quaternary MgeFeSieO thin films has been determined from sp ...

Pergamon-Elsevier Science Ltd2013

Embedded microstructures for daylighting and seasonal thermal control

Nicolas Jolissaint, Jean-Louis Scartezzini, Yves Leterrier, Andreas Schueler, André Gabriel Kostro, Mario Geiger, Marina Aymara González Lazo

A novel concept for an advanced fenestration system was studied and samples were produced to demonstrate the feasibility. The resulting novel glazing will combine the functions of daylighting, glare protection, and seasonal thermal control. Coated microstr ...

Spie-Int Soc Optical Engineering2012

Angle-dependent spectrophotometry of Sol-Gel deposited multilayered oxide coatings on solar collector glasses

Jean-Louis Scartezzini, Andreas Schueler, Christian Roecker, Estelle De Chambrier

Multilayered thin oxide films have been deposited on solar collector glazing by sol-gel dip coating in a dust-free environment provided by a laminar flux chapel. A superior film quality and a satisfying film homogeneity have been achieved for the produced ...

2005

Strong coloration of nanoporous tungsten oxides by in-vacuo lithiation for all-solid-state electrochromic devices

Andreas Schueler, Anna Krammer, Luc Burnier, Olivia Valérie Charlotte Bouvard, Maxime Lagier

Electrochromic windows allow for an improved management of solar heat gains in buildings and enhanced visual comfort of building users. All-solid-state electrochromic devices can be especially durable. During their fabrication lithium has to be inserted, p ...

ELSEVIER SCIENCE SA2021

Sol-gel deposition and optical characterization of multilayered SiO2/Ti1-xSixO2 coatings on solar collector glasses

Jean-Louis Scartezzini, Andreas Schueler, Christian Roecker, Estelle De Chambrier

Thin films of silicon oxide and silicon titanium mixed oxides are deposited on solar collector glazing in a sol–gel dip-coating process based on alcoxide precursors. Spectrophotometry is used to characterize the relation of film thickness and withdrawal sp ...

2006

In-situ evaluation of high-performance glazing based on illuminance and glare

Jean-Louis Scartezzini, Marilyne Andersen, Andreas Schueler, Jan Wienold, Caroline Karmann, André Gabriel Kostro, Pietro Florio

High-technology glazing panes are designed to meet the need for natural light, while optimizing key functions such as reducing solar heat gain in spaces and/or redirecting daylight to the rear of the spaces. However, the actual performance in terms of both ...

2022

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

Andreas Schueler, Anna Krammer, Olivia Valérie Charlotte Bouvard

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

Development of novel orange colored photovoltaic modules with improved angular stability and high energy efficiency

Andreas Schueler, Anna Krammer, Jérémy Jacques Antonin Fleury, Maxime Lagier, Krishna Manwani

This work illustrates a novel approach for the development of orange multilayer interference coatings with improved angular stability of color while maximizing energy efficiency. The high energy efficiency of these interference coatings is based on thin fi ...

2024

Thermochromic coatings for overheating protection of solar thermal collectors - novel type of doping (TARGET95)

Andreas Schueler, Anna Krammer

Overheating and the resulting stagnation of solar thermal collectors is a common problem even in central European latitudes. During stagnation, high temperatures lead to water evaporation, glycol degradation and stresses in the collector with increasing va ...

2018

Thermochromic films of VO2:W for smart solar energy applications

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

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. In solar thermal collectors, the elevated temperatures occurring during stagnation result in reduced lifeti ...

SPIE2009

Nanoindentation Reveals Crosslinking Behavior of Solar Encapsulants-The Methodological Advantages over Bulk Methods

Andreas Schueler

The power degradation and failure of photovoltaic (PV) modules can be caused by changes in the mechanical properties of the polymeric components during the module lifetime. This paper introduces instrumented nanoindentation as a method to investigate the m ...

2021

New challenges in solar architectural innovation

Christophe Ballif, Jan-Anders Edvin Maansson, Jean-Louis Scartezzini, Yves Leterrier, Andreas Schueler, Christian Roecker, Valentin Chapuis, Krista Susan Lumsden Friedli

Among the century’s main challenges, climate change and the need for energy sources diversification are of great importance. In this context, renewable energies undoubtedly have an important role to play. Photovoltaic (PV) electricity is especially well su ...

EPFL2011

Numerical study of optical transmission in silver plasmonic square nanohole arrays and its application to insulating windows

Andreas Schueler, Jérémy Jacques Antonin Fleury

Energy-efficient windows are being used to increase the thermal insulation of a fa & ccedil;ade. Such insulating windows contain an ultra-thin, multilayered, transparent silver coating that acts as an infrared mirror which significantly reduces thermal los ...

2024

Mobile communication through insulating windows: a new type of low emissivity coating

Andreas Schueler, Luc Burnier, Olivia Valérie Charlotte Bouvard

Building materials attenuate the microwaves used for telecommunication depending on their composition and thickness. Modern windows contain glass with a metallic coating. This might cause a low quality of cell phone reception inside some buildings. In orde ...

Elsevier2017