Publications by Marina Aymara González Lazo

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

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

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

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

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

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, Andreas Schueler, Franz-Josef Haug, Marina Aymara González Lazo

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

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

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, Maïté Blank, Marina Aymara González Lazo

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, Martin Python, Andreas Schueler, Thomas Gascou, Yannik Antonetti, Martin Joly, Marina Aymara González Lazo, 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, Andreas Schueler, André Gabriel Kostro, Rémy Teuscher, Marina Aymara González Lazo

2012

Embedded microstructures for daylighting and seasonal thermal control

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

UV-nanoimprint lithography and large area roll-to-roll texturization with hyperbranched polymer nanocomposites for light-trapping applications

Aïcha Hessler-Wyser, Yves Leterrier, Philippe Couty, Diego Fischer, Rémy Teuscher, Caroline Calderone, Marina Aymara González Lazo

Light-trapping textures were produced in hyperbranched polymer (HBP) silica nanocomposites using a UV-nanoimprint lithography (UVNIL) replication method, either in batch or roll-to-roll processes. The hardness of the HBP was found to increase by a factor o ...

Elsevier2012

Large Area Roll-to-Roll Texturation with Hyperbranched Polymer Nanocomposites for Light-Trapping Applications

Aïcha Hessler-Wyser, Yves Leterrier, Rémy Teuscher, Marina Aymara González Lazo

2011