Overview
- Hebrew University researchers report flexible perovskite cells that control light transmission using 3D‑printed arrays of microscopic polymer pillars.
- The optical design regulates transparency without altering the perovskite absorber, preserving performance while shaping how much light passes through.
- Device appearance is tuned by adjusting transparent electrode thickness to reflect selected wavelengths, producing distinct colors during power generation.
- Laboratory tests show up to 9.2% power conversion efficiency at about 35% average visible transparency with stable output under repeated bending and extended operation.
- The solvent-free, low-temperature fabrication suits flexible substrates for applications such as solar windows and façades, and the team is advancing protective encapsulation and barrier layers.