Publications de Luc Burnier | EPFL Graph Search

Energy saving glazing with high MIMO performance

Andreas Schueler, Marina Aymara González Lazo, Luc Burnier, Shad Ali Durussel, Jérémy Jacques Antonin Fleury, Héloïse Ludivine Delaporte

Multiple Input Multiple Output (MIMO) systems are increasingly used to support the rapid growth in mobile traffic. Their ability of multiplying the data capacity is especially suitable in 4G-5G wireless railway communications. However, MIMO efficiency is l ...

2025

Performances studies of a basket-based solar cooker for humanitarian aid in Uganda

Andreas Schueler, Luc Burnier, David Notzon, Romain Schindelholz, Jérémy Jacques Antonin Fleury

This study explores the suitability of a basket -based solar cooker for cooking in Uganda, an equatorial country. The solar cooker is designed to be easily constructed and based on recycled and locally available materials. Its performance in terms of cooki ...

Pergamon-Elsevier Science Ltd2023

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

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

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

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

Glazing unit

Andreas Schueler, Luc Burnier, Jérémy Jacques Antonin Fleury

The present invention concerns an insulating glazing unit (1) adapted to let pass electromagnetic radiation with low transmission loss for receiving electromagnetic radiation. The insulating glazing unit (1) comprises: a first windowpane (3) defining at le ...

2021

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

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

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

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

Laser engraving device for multiple laser beams

Andreas Schueler, Luc Burnier

The present invention concerns a laser engraving device (1) for engraving a target surface (17). The laser engraving device (1) comprises: a beam splitter (7) for dividing a processing laser beam (25) into a plurality of engraving laser beams (27); a first ...

2020

Co-Sputtered Monocrystalline GeSn for Infrared Photodetection

Andreas Schueler, Josef Andreas Schuler, Anna Fontcuberta i Morral, Luc Burnier, Nicolas Philippe Laurent Humblot, Anna Krammer, Andrea Giunto

We demonstrate monocrystalline growth of GeSn on Ge and Si substrates by co-sputtering. We discuss the evolution of film growth with thickness, elucidating the effects of substrate temperature, sputtering source, and the importance of hydrogen dilution in ...

IEEE2020

Solar cooking potential in Switzerland: Nodal modelling and optimization

Andreas Schueler, Josef Andreas Schuler, Olivia Valérie Charlotte Bouvard, Timothée Chatelain, Luc Burnier, Dasaraden Mauree, Samson Taylor, 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

Novel microwave transparent low emissivity coating for energy-efficient glazing: towards 5G frequencies

Andreas Schueler, Luc Burnier, Jérémy Jacques Antonin Fleury

Novel mobile communication technology such as 5G will provide a more efficient and reliable platform for the development of the Internet of Things. However, microwaves in the range of 5G frequencies are strongly attenuated by modern energy-efficient glazin ...

IOP2019

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

Josef Andreas Schuler, Olivia Valérie Charlotte Bouvard, Luc Burnier

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

Energy saving glazing with a wide band-pass FSS allowing mobile communication: up-scaling and characterisation

Andreas Schueler, Olivia Valérie Charlotte Bouvard, Luc Burnier

A real case study and characterisation of modern energy efficient windows allowing mobile communication is presented. An earlier study had shown that laser scribing of energy saving coatings allows highly reducing the microwave attenuation (from 30 to 1-3d ...

Inst Engineering Technology-Iet2017

Structured transparent low emissivity coatings with high microwave transmission

Andreas Schueler, Olivia Valérie Charlotte Bouvard, Luc Burnier

In order to reduce the energy consumption of buildings, modern windows include metal-containing coatings. These coatings strongly attenuate the microwaves used for mobile communications. Here, we present a novel approach to improve radio signal transmissio ...

Springer Verlag2017

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

Andreas Schueler, Olivia Valérie Charlotte Bouvard, Luc Burnier

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