Punching holes in opaque solar cells turns them transparent

Source: Science Daily

Researchers in Korea have found an effective and inexpensive strategy to transform solar cells from opaque to transparent. Existing transparent solar cells tend to have a reddish hue and lower efficiency, but by punching tiny holes on crystalline silicon wafers, it allows light through without coloring. The holes are then strategically spaced, so the human eye is unable to ‘see’ the pattern.

https://www.sciencedaily.com/releases/2019/12/191211115534.htm