Antimicrobial device using ultraviolet light

An antimicrobial device, comprising:

• an ultraviolet (UV) module, comprising:
• an electron source to provide a free electron;
• an extractor to extract the free electron from the electron source and direct the free electron in a first direction towards a target material with a first amount of energy;
• one or more path electrodes disposed between the extractor and the target material, the one or more path electrodes configured to increase the energy of the free electron from the first amount of energy to a second amount that is at least 5.3 electron volts (eV);
• the target material comprising a quantum confined material or quantum dot configured to receive the free electron and, in response, produce a photon having a wavelength within a wavelength range of 200-230 nanometers (nm);
• an exit window disposed on the target material, the exit window configured to permit photons produced by the target material to pass therethrough;
• and
• a parabolic optical reflector disposed entirely between the extractor and the target material, the parabolic optical reflector configured to permit free electrons to pass along a transmission path to the target material and to reflect photons produced by the target material outwardly through the exit window.