[Julius Curt] needed to mark acrylic panels with a bit more clarity than the usual way of rastering the surface, so they attempted to 3D print directly to an acrylic sheet, which worked perfectly. … ...

The researchers said that 3 mm acrylic sheets can reflect and absorb 10% of solar radiation with wavelengths below 1.1 μm, which is insufficient for exciting electrons in PV power generation.