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Josef Andreas Schuler

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Related publications (58)

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Sulfur as pollutant species on the cathode side of a SOFC system

Jan Van Herle, Aïcha Hessler-Wyser, Josef Andreas Schuler

Sulfur poisoning in a strontium doped lanthanum cobaltite (LSC) cathode current collection layer was revealed in a solid oxide fuel cell (SOFC) tested in repeat-element and stack configuration. Sources of sulfur contamination, other than trace SOx in air, ...

2009

Chromium Poisoning : The Needle in the SOFC Stack

Josef Andreas Schuler

This thesis focuses on Cr-poisoning in solid oxide fuel cells (SOFC), which currently presents a key challenge for the development of this technology. By the implementation of dedicated experimental tools, this work offers a new access to, and comprehensio ...

EPFL2012

Solar heat gains through train windows: a non-negligible contribution to the energy balance

Josef Andreas Schuler, Luc Burnier, Olivia Valérie Charlotte Bouvard

The sector of transportation accounts for about one third of the total energy consumption in Switzerland. A monitoring campaign of the energy consumption of a regional train revealed the critical energy-consuming systems. Heating, cooling and ventilation w ...

2018

Air Side Contamination in SOFC Stack Testing

Christian Ludwig, Jan Van Herle, Aïcha Hessler-Wyser, Josef Andreas Schuler, Zacharie Wuillemin

Solid Oxide Fuel Cells (SOFCs) are likely candidates for electricity production with high efficiency and promise reasonable fuel tolerance. While fuel impurities are known anode poisons, less attention is brought to air-purity, especially to air-side conta ...

2010

Segmented cell testing for cathode parameter investigation

Jan Van Herle, Christos Comninellis, Zacharie Wuillemin, Josef Andreas Schuler, Pietro Tanasini

The increasing quality and durability of solid oxide fuel cells (SOFCs) state-of-the-art materials renders the long-term testing of fuel cells difficult since considerably long equipment times are needed to obtain valuable results. Moreover, reproducibilit ...

Elsevier2011

Combining thermal insulation and mobile communication in buildings: influence of laser-treated glazing on microwave propagation

Andreas Schueler, Josef Andreas Schuler, Luc Burnier, Jérémy Jacques Antonin Fleury, Héloïse Ludivine Delaporte

With the purpose of reducing the heating energy in buildings, it is common practice to install energy-efficient windows to increase the thermal insulation of a façade. These insulating glass units (IGIJ) include a thin silver coating acting as an infrared ...

IOP2022

Nanostructured Coatings on Glazing for Active Solar Facades

Jean-Louis Scartezzini, Josef Andreas Schuler, Christian Roecker, Maria Cristina Munari Probst, Estelle De Chambrier

Thin films on glazing play an important role in the design of solar energy conversion systems as thermal collectors or photovoltaic panels. Antireflective coatings based on porous silicon dioxide are well established in the field of solar collector glazing ...

EPFL2007

Electronic properties and ion migration of “in vacuo” lithiated nanoporous WO3:Mo thin films

Andreas Schueler, Josef Andreas Schuler, Luc Burnier, Jérémy Jacques Antonin Fleury

Electrochromic (EC) glazing helps manage daylight and solar heat gains in building, thereby allowing a reduction in energy consumption caused by heating, cooling, and artificial lighting. This study relates the optical and electronic properties of nanoporo ...

2022

Air Side Contamination in Solid Oxide Fuel Cell Stack Testing

Christian Ludwig, Jan Van Herle, Aïcha Hessler-Wyser, Josef Andreas Schuler, Zacharie Wuillemin

Elsevier2011

Wide band-pass FSS with reduced periodicity for energy efficient windows at higher frequencies

Josef Andreas Schuler, Luc Burnier, Jérémy Jacques Antonin Fleury

A simulation model and an experimental characterization of energy saving glazing transparent to mobile communication frequency up to 40 GHz is presented. A previous study showed that laser structured energy efficient windows with a frequency selective surf ...

SPRINGER HEIDELBERG2020

Experimental Determination of Optical and Thermal Properties of Semi-transparent Photovoltaic Modules Based on Dye-sensitized Solar Cells

Josef Andreas Schuler, Olivia Valérie Charlotte Bouvard, Sara Vanzo

The demand for energy efficiency of buildings and on-site electricity production is rising. Building integrated photovoltaic can provide a part of the electricity demand. Many studies are related to the module efficiency. However, architectural integration ...

2015

Sol-gel deposition and characterization of low refractive index nanocomposite Mg:F:Si:O thin films for solar and protective coatings

Jean-Louis Scartezzini, Josef Andreas Schuler, Christian Roecker, Estelle De Chambrier

Coatings for thermal solar energy conversion have to be abrasion-resistant, stable at elevated temperatures, and often have to protect the substrate against corrosion. Due to the conditions of refractive index matching between the substrate and the ambient ...

2007

Microfabrication of curved sidewall grooves using scanning nanosecond excimer laser ablation

Patrik Willi Hoffmann, Josef Andreas Schuler, Georgios Violakis, André Gabriel Kostro, Jing Gong

Novel glazing with embedded micro-mirrors can significantly reduce the energy consumption due to cooling and lighting in buildings. Especially promising are large arrays of periodic micro compound-parabolic-concentrators (CPCs) with angular-selected transm ...

SPIE2018

Development of a novel mechanical micro-engraving method for the high-aspect-ratio microstructures of an advanced window system

Josef Andreas Schuler, André Gabriel Kostro, Jing Gong

A transparent polymer film with embedded micro mirrors is developed, and it can be attached to a window glass pane for daylighting, improving visual comfort and reducing cooling load in buildings by redirecting sunlight. Despite existing cutting-edge techn ...

2018

Solar cooking potential in Switzerland: Nodal modelling and optimization

Andreas Schueler, Josef Andreas Schuler, Dasaraden Mauree, Luc Burnier, Olivia Valérie Charlotte Bouvard, Jérémy Jacques Antonin Fleury

Solar cooking is one possible solution to reduce the domination of fossil fuel in the domestic sector and to benefit from renewable energy. This study assesses the solar cooking potential in Switzerland. A nodal model, based on energy balance equations of ...

PERGAMON-ELSEVIER SCIENCE LTD2019

A Steep-Slope Transistor Combining Phase-Change and Band-to-Band-Tunneling to Achieve a sub-Unity Body Factor

Mihai Adrian Ionescu, Josef Andreas Schuler, Wolfgang Amadeus Vitale, Anna Krammer, Emanuele Andrea Casu, Arnab Biswas, Cem Alper, Teodor Rosca

Steep-slope transistors allow to scale down the supply voltage and the energy per computed bit of information as compared to conventional field-effect transistors (FETs), due to their sub-60 mV/decade subthreshold swing at room temperature. Currently pursu ...

Nature Research2017

Towards novel glazing with seasonal dynamics based on micro compound parabolic concentrators

Josef Andreas Schuler, André Gabriel Kostro, Jing Gong

Thermal loss and overheating caused by glazing is a key issue in reducing CO2 emission and energy consumption of buildings. A novel glazing based on micro compound parabolic concentrators (CPCs) is proposed. The glazing consists of a polymer layer with emb ...

2018

Assessing visibility in multi-scale urban planning: A contribution to a method enhancing social acceptability of solar energy in cities

Jean-Louis Scartezzini, Christian Roecker, Josef Andreas Schuler, Maria Cristina Munari Probst, Pietro Florio

Urban areas are facing a growing deployment of solar photovoltaic and thermal technologies on building envelopes, both on roofs and on façades. An effective solar energy planning process considers social acceptance, in relation to the landscape alteration ...

2018

Optical properties of in vacuo lithiated nanoporous WO3:Mo thin films as determined by spectroscopic ellipsometry

Andreas Schueler, Josef Andreas Schuler, Luc Burnier, Olivia Valérie Charlotte Bouvard, Maxime Lagier

Incorporation of Mo into pure WO3 thin films is of interest for electrochromic devices, as it improves colour neutrality in the dark state. Existing literature still lacks reliable quantitative data on the complex dielectric function of such coatings. In t ...

2021

Optical properties of metal-doped carbon based nanocomposite thin films: Comparing experiment to effective medium theories

Josef Andreas Schuler

Nanocomposite thin films exhibit interesting optical properties which differ from those of the pure constituents. Effective medium theories are used to model the dielectric function of the nanocomposite materials. We give an introduction to the theories of ...

2006