Red light-emitting nitride material and light-emitting part and light-emitting device comprising same

摘要

The present invention provides a nitride red light emitting material, a light emitting body containing the same, and a light emitting element. The general formula of the light emitting material is M_A(Al, B)_BSi_CN_DO_E: Eu_M, Rn where M represents at least one of the alkaline earth metal elements Mg, Ca, Sr, Ba and Zn and R represents at least one of the rare earth elements Y, La, Ce, Gd and Lu, B ", 1 " c " 1.5, 2.5 &The light emitting material is effectively excited by the radiation having a wavelength of 500 nm or less to emit visible red light having a broad spectral width of 500 nm to 780 nm. The luminescent material of the present invention has advantages such as a high luminous efficiency, a good temperature characteristic and a wide half width, and can be used alone or in combination with other luminescent materials to produce a high performance luminescent device.;