Yttrium-Cerium-Aluminum garnet phosphor and light-emitting device

摘要

In a yttrium-cerium-aluminum garnet phosphor having a crystallographic texture, nanocrystalline grains having a grain size of 5-20 nm and containing cerium in a higher concentration than the matrix phase are dispersed in the crystallographic texture. The emission color of the phosphor is shifted to the longer wavelength side. The phosphor can maintain its satisfactory emission performance even at high temperature.