Printed Electronics World
Dec 13, 2019
Punching Holes in Opaque Solar Cells Turns Them Transparent
Researchers 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 holes that are around 100 μm in diameter (comparable in size to a human hair) on crystalline silicon wafers, it allows light through without coloring.