Making ZnS:Cu, a green phosphorescent material
Channel: Hydrogen, Time
Date: 2019-02-03

Phosphors are used in Cathode Ray Tubes (CRT), Vacuum Fluorescent Displays (VFD), glow in the dark paint and other applications.
This video shows the synthesis of ZnS:Cu, a green phosphor based on Zinc Sulfide.

References:
W. Yen, M. Weber, "Inorganic Phosphors", CRC press