Lumeks
Lumeks are a class of crystalline materials that exhibit persistent luminescence, emitting visible light for extended periods after stimulation by ultraviolet light, heat, or an electric field. They are typically based on aluminates, silicates, or phosphates doped with rare-earth or transition-metal ions, which create energy traps within the crystal lattice. The luminescent emission is usually blue to green, but dopant selections can yield yellow, orange, or red hues.
Formation and structure: Lumeks form in hydrothermal environments where silica-rich fluids interact with carbonaceous or organic-rich
Occurrences and production: Globally reported but relatively rare, lumeks are mined from specialized hydrothermal veins and
Applications and research: Lumeks are investigated for long-lasting phosphors in signage, architectural lighting, and display technologies,
Etymology and terminology: The name lumek is derived from lumen, Latin for light, with lumeks referring to
Safety and regulation: Handling of lumeks follows standard mineral processing and chemical safety protocols. Because they