Researchers at Karlsruhe Institute of Technology (KIT) have developed an innovative transparent metamaterial that can help cool rooms without the need for air conditioning. This novel polymer-based metamaterial essentially combines various properties and could replace glass components in construction in the near future.
The Polymer-based Micro-Photonic Multi-Functional Metamaterial (PMMM) consists of microscopic pyramids made of silicone, measuring about ten micrometers, or one-tenth the diameter of a hair. This PMMM film features light diffusion, is self-cleaning, and offers radiative cooling while maintaining a high level of transparency. Tests revealed cooling of about 6 °C compared to the ambient temperature.
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Our newly developed material has the potential to be used in various areas and makes a significant contribution to sustainable and energy-efficient architecture. The material can simultaneously optimize the use of sunlight indoors, provide passive cooling, and reduce reliance on air conditioning. The solution is scalable and can be seamlessly integrated into plans for environmentally friendly building construction and urban development,” said Bryce S. Richards, Professor at IMT and RichardsGan Huang, a Group Leader at IMT.
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