Chalcogenide perovskite film generates electricity when squeezed or stressed

https://techxplore.com/news/2024-10-chalcogenide-perovskite-generates-electricity-stressed.html

"environmentally friendly (does not contain lead): polymer film infused with 0.3 mm thick chalcogenide perovskite... deforms causing positive/ negative ions within (dipole)... contains barium, zirconium, sulfur..., powerd LED's... use in machines, infrastructure, bio-medical, tires charging vehicle as it drives, streetlights powered by traffic rumble, skyscrapers generating electricity as buildings sway, devices worn by runners or bikers that light up their shoes or helmets"