Fluorescent powder for producing high brightness white light emitting diodes and white light emitting device

摘要

A composition of a fluorescent material having the formula (YxTbyCez) Al5O12, wherein x + y = 3, x, y ≠ 0, 0 z 0.5, wherein (YxTby) Al5O12 is a host thereof and Ce is an activator thereof and wherein by adjusting the metal component of the (YxTby) Al5O12 host of the fluorescent material, a crystal field thereof can be modulated whereby a wavelength of light emitted from the fluorescent material is changed.