Cleaning glass facades and solar installations is expensive and time-consuming. Dirt reduces the yield of solar modules. However, the Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology (FEP) has now succeeded in applying crystalline titanium oxide to ultra-thin glass using a roll-to-roll process, thus achieving hydrophobic surfaces that become superhydrophilic under UV light.
In 2021, photovoltaics covered 8.9% of gross electricity consumption in Germany with electricity generation of 50 TWh. This percentage must increase to reach a sustainable energy transition. Dirt-repellent, easy to clean surfaces ensure transparency and cleanliness for facades, and more efficient and consistent energy production for solar power, with lower maintenance costs.
"We are focusing on photoinduced ...
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