Jérémy Fleury

École Polytechnique Fédérale de Lausanne | EPFL

As the demand for photovoltaic technologies continues to grow, the quest for efficient and sustainable transparent conducting electrodes (TCEs) rapidly rises. Traditional solutions, such as indium tin oxide (ITO), face challenges related to indium scarcity and environmental impact. To tackle these issues, a novel metal mesh rear TCE consisting of g...

Hierarchical metal mesh structures are fabricated for use as transparent conductive electrodes in electrochromic devices with large-band transmittance switching. Electrochromic materials (WO 3 and Ta:NiO) are deposited by plasma sputtering on the metal mesh and characterized in a custom-made electrochemical setup allowing in-situ photo-spectrometer...

In light-limiting conditions, aerial organs of most plants reorient their growth towards the light to improve photosynthesis, through a process known as phototropism (1-3). The blue light receptors phototropin control phototropic responses through light-induced protein kinase activity (4). Current models posit that asymmetric activation of these se...

The integrated performance assessment of buildings can orient their design in the early stages. Despite the wide availability of physics simulation-based, data-driven, and hybrid techniques, it is often difficult to rely on a single, appropriate technique to obtain reliable results. A set of methods, each featuring advantages and limitations, help...

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 mirror which reduces the thermal losses that occur through radiation, but at the same time ref...

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 surface greatly reduces the microwave attenuation for frequencies below 5 GHz, while preserving th...

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 a box-type solar cooker is implemented in Matlab. Model parameters that cannot be determined e...

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 glazing found in most recent buildings. This paper presents major steps towards microwave transparen...

Solar cooking is one possible solution to reduce the domination of fossil fuel in the domestic sector and to benefit the renewable energy. This study assesses the solar cooking potential in Switzerland. A suited nodal model, based on energy balance equations of a box-type solar cooker is implemented in Matlab. Model parameters that cannot be determ...