Usually solar cells are made of crystalline silicon, which by itself does not transmit light.

Korean scientists have drilled many microscopic holes in a thin plate in a certain order, allowing sunlight to pass through. As a result, for the human eye, the photocell has become transparent and virtually colorless, since most of the area of ​​the material is occupied by openings with a diameter of about 100 μm each, which freely transmit light.

The rest of the surface is still capable of converting solar energy into electricity. According to the developers, their battery reaches 12.2% efficiency compared to the standard 20-25%. So scientists are going to replace the regular solar panels with new solar panels.