Regenerative braking using phosphorescence

An apparatus for electrical energy generation in a vehicle, comprising:

• a light source, powered by electrical energy generated by a conversion of mechanical energy from a braking event in the vehicle, configured to emit optical energy from a surface of said light source;
• a phosphorescent material in optical communication with the light source and configured to (i) absorb said optical energy from the light source, and (ii) emit optical energy at a different wavelength from the optical energy from the light source;
• and
• a photovoltaic cell in optical communication with the phosphorescent material and configured to (i) absorb the optical energy emitted by the phosphorescent material, and (ii) generate electrical power from optical energy.