Luminescent Semiconductors

摘要

T he investigation of the optical properties of inorganic solids is currently a very topical theme, not least because of the dramatic changes being made in the use of illuminants. In fact, the energy saved by replacing incandescent bulbs and even energy-saving lamps with the highly efficient- light-emitting diodes (LEDs) is considerable,since approximately 20% of the electric energy is used for illumination purposes.