PMMM has an excellent light transmission rate of 95%, which is higher than the 91% typically achieved by most types of glass. Such high transparency is due to the unique microscopic structure of the surface, which consists of a series of pyramids, each only 10 microns wide.

These microscopic patterns scatter 73% of incoming light, giving the surface a matte appearance while maintaining excellent light transmission.

Leading researcher Gang Huang highlighted the universal advantages of the material.

It allows you to create illuminated, glare-free and exclusive interiors for work and life. Since the photosynthesis efficiency in greenhouses is 9 percent higher than in greenhouses with glass roofs, high light transmittance can increase efficiency.
Huang explained.

One of the special properties of PMMM is its ability to reflect infrared radiation, a process known as radiative cooling. By reflecting infrared waves, the material can reduce the indoor temperature by up to 6 °C compared to the outdoor temperature, significantly reducing the need for air conditioning and contributing to energy savings.

Additionally, PMMM exhibits self-cleaning properties due to its hydrophobic microscopic pyramids.

• These structures trap a thin layer of air on the surface, causing water droplets from rain or dew to roll off, effectively removing dust and dirt.

This feature ensures that surfaces coated with PMMM remain clean with minimal maintenance.

Material structure and comparison with glass / Photo: Gan Huang, KIT

The future of revolutionary materials

Huang and his team believe that PMMM’s multifunctional capabilities could revolutionize building design and urban planning.

“This material can simultaneously optimize the use of sunlight indoors, provide passive cooling and reduce dependence on air conditioners,” says the scientist.

The solution is scalable and can be easily integrated into plans for the construction of “green” buildings and urban planning.

As researchers continue to explore the full potential of PMMM, its implementation could mark a significant shift towards more sustainable and efficient building practices and promise increased comfort and productivity for both people and facilities.