Researchers at the University of Colorado Boulder have developed a new material called MOCHI, which is a thin coating that can be applied to windows to allow light in while reducing heat transfer by 90%. Made of a silicone gel with tiny air bubbles, MOCHI is long-lasting, transparent, and could revolutionize energy efficiency in buildings. This clear-but-insulating material could trap heat from sunlight for sustainable energy production and has a thermal transmittance that beats conventional windows by a large margin. While the potential impact on global energy demand is revolutionary, the mass production feasibility of MOCHI is still uncertain due to the time-consuming manufacturing process.
https://cleantechnica.com/2026/01/07/mochi-blocks-90-of-heat-transfer-in-windows/