Chinese scientists have created self-cleaning glass that removes dust using electric fields

Chinese scientists from Zhejiang University have developed an innovative self-cleaning glass that uses electric fields to effectively remove dust and other particles from the surface, reports Interesting Engineering.

This technology offers a simple and environmentally friendly solution to the problem of glass contamination, which often occurs on windows, building facades and solar panels, especially in desert regions. Cleaning such surfaces usually requires significant time, effort and money.

Scientists have discovered that charged particles behave unusually when exposed to an alternating electric field: they not only move sideways, but sometimes change direction or even bounce off the surface altogether. This phenomenon has made it possible to create a transparent glass just 0.62 mm thick, which in a matter of seconds is cleaned of organic and inorganic contaminants without the use of water, chemicals or large amounts of energy.

In addition to removing dust, the glass prevents new particles from settling thanks to the so-called "particle shielding effect". The active electric field deflects charged particles in the air, reducing dust accumulation by almost 90%. This provides long-lasting protection even during dust storms and helps to maintain the transparency of the surface.

With minimal exposure to visible light, this technology is ideal for solar panels, car windshields, greenhouse roofs and windows in tall buildings where transparency and energy efficiency are important. The production of such glass does not require complex equipment and is based on common materials and industrial methods, making it accessible for mass production.

The study is published in the journal Advanced Science and could be a breakthrough in the care of surfaces that require regular cleaning.