Publications de Marina Aymara González Lazo

Energy saving glazing with high MIMO performance

Andreas Schueler, Marina Aymara González Lazo, Shad Ali Durussel, Luc Burnier, 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

A Facile in Situ and UV Printing Process for Bioinspired Self-Cleaning Surfaces

Yves Leterrier, Sara Dalle Vacche, Marina Aymara González Lazo, Feyza Karasu Kiliç, Ioannis Katrantzis

A facile in situ and UV printing process was demonstrated to create self-cleaning synthetic replica of natural petals and leaves. The process relied on the spontaneous migration of a fluorinated acrylate surfactant (PFUA) within a low-shrinkage acrylated h ...

MDPI2016

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

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

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

Light trapping polymer-based coatings for cost effective flexible thin film photovoltaics

Marina Aymara González Lazo

Thin film silicon solar cells benefit from a lower fabrication cost than crystalline silicon cells, but they have a lower efficiency. The aim of this thesis was to explore the light-management capabilities of sub-micron polymer-based textures, both for the ...

EPFL2015

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

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

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

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, Andreas Schueler, Aïcha Hessler-Wyser, Marina Aymara González Lazo, Martin Python, Martin Joly, Yannik Antonetti, 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

Superhard transparent hybrid nanocomposites for high fidelity UV-nanoimprint lithography

Yves Leterrier, Marina Aymara González Lazo, Maïté Blank

Transparent hyperbranched acrylate nanocomposites were produced using different combinations of silica nanoparticles and silicon-based sol-gel precursors. The nanocomposites were processed using a dual-cure UV polymerization and condensation scheme. The vi ...

2013

Novel black selective coating for tubular solar absorbers based on a sol-gel method

Jean-Louis Scartezzini, Andreas Schueler, Martin Python, Marina Aymara González Lazo, Martin Joly, Thomas Gascou, Yannik Antonetti, Marina Garcia Gonzalez

Multi layered chrome-free black selective surfaces for solar thermal energy conversion were produced by a low-cost sol gel dip-coating method. The optical properties of the Cu-Co-Mn-Si-O based nanocrystalline thin films have been characterized by spectroph ...

Elsevier2013

Encapsulated Microstructures for Daylighting and Seasonal Thermal Control

Yves Leterrier, Jean-Louis Scartezzini, Marina Aymara González Lazo, Andreas Schueler, André Gabriel Kostro, Rémy Teuscher

2012

Embedded microstructures for daylighting and seasonal thermal control

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

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