The end of roofs full of panels: Singapore achieves a nearly invisible solar cell that generates power even in the shade

NTU Singapore researchers unveiled a 10-nanometer transparent perovskite solar cell made entirely by vacuum deposition.

The ultrathin device stays semitransparent while generating usable power even under indirect and diffuse light.

Because it uses semiconductor-style manufacturing, it could be easier to scale for energy-producing windows and building facades.

The breakthrough points to city glass surfaces that can make electricity without blocking natural light.