Recent Developments in Phosphor Materials

Solid-state luminescent materials in powder form are generally labeled as “phosphors” in technological applications involving the production of light (usually in the visible spectral region) as a result of excitation by UV radiation, by x-rays, or by electron-beam impact. Since the widest utilization of phosphors occurs in the lighting industry, in the conversion into visible light of UV radiation from low-pressure Hg plasma, the emphasis in the following presentation will be on lighting phosphors.