DESAFIO

This project, which is a continuation of the project started in 2018, intends to develop photonic structures applied to improving efficiency of photovoltaic modules based on thin film technology and the crystalline silicon standard using wafers. The goal is to have the photonic structures improve the capturing of incident solar radiation on photovoltaic solar cells and use passive cooling so the operating temperature of the photovoltaic modules can be reduced to increase their efficiency and durability. On this collaborative project the consortium is made up of ADItech as the coordinator, CENER as the technical leader and the UPNA as a collaborating partner.

Activities done in prior iterations (DESAFIO 2018) have made it possible for the project to evolve into the next phase, achieving several goals related with capturing light and passive cooling. On one hand, simulations of the photonic structures on the crystalline silica have made it possible to determine the optimum ones, which have subsequently been fabricated. And the light capturing effect has been quantified through the photo-generated current.

Likewise, thin film samples have been fabricated with random periodic structures that show diverse radiation capturing. Along those lines, it has been shown experimentally that the samples with periodic micrometric structures show a slight improvement in capturing light in comparison with the samples that have random nanometric structures.

The simulations have also made it possible to identify the geometry of the structures on the glass that provide improved (passive) radiative cooling. Glass samples with passive cooling have been fabricated in response to the simulation results. Thanks to the differential calorimeter built by the UPNA it has been possible to prove the improved passive cooling capacity of the samples fabricated by CENER.

The project was accepted as a group speaker at CYTEF2020, the Congress of Refrigeration Science and Technology, which was held in Pamplona from 1 to 3 July 2020 with the title “Differential calorimeter for testing efficiency of samples processed for radiative cooling”.


  • Año: 2019
  • Sector estratégico: Industria de la energía verde
  • Líder del proyecto: CENER
  • Socios del proyecto: UPNA

2019

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