abstract |
A glass material is provided, which has a composition of M 2 O—ZnO-M′ 2 0 3 —Bi 2 O 3 —SiO 2 , wherein M is Li, Na, K, or a combination thereof, and M′ is B, Al, or a combination thereof. A fluorescent composite material can be composed of the glass material and a phosphor material. The fluorescent composite material may collocate with an excitation light source to provide a light-emitting device. |