This electrochromic film’s color and optical properties change when the electric potential goes from 0 to 0.8 to 1.6 volts: Green helps reduce glare, and red enhances thermal insulation.

The system incorporates both crystalline silicon cells and electrochromic film. The proposed photoelctrochromic device (PECD) combines photoelectric functions, converting sunlight into energy ...

and interesting electrochromic properties. For example, it is colored in the neutral state but transparent in the doped state ...

It started out as a school project and now this invention has earned 13-year-old Ava-Elizabeth Bell of Ravenna a first-place ...