Production and shaping of high performance phosphors for lighting by using sol-gel process

摘要

The development and use of efficient fluorescent lamps over the past few decades has been a prevailing in controlling electricity consumption. Nowadays, two different kinds of fluorescent lamps are used: one is based on a two colour system, while the other is based on a three colour system. In the both cases, the phosphors are excited primarily by the short wavelength (254 nm) light produced through mercury discharge in the lamp. Despite the drastic reduction of mercury-amount in the fluorescent lamps, in agreement with most of the environmental protection legislations in the world, the mercury will be certainly avoided for such application in a near future.