NITRIDE PHOSPHOR AND METHOD FOR PREPARATION THEREOF, AND LIGHT EMITTING DEVICE

摘要

To provide a phosphor containing a comparatively much red component and having high light emitting efficiency, high brightness and further high durability, the nitride phosphor is represented by the general formula L X M Y N((2/3)X+(4/3)Y):R or L X M Y O Z N((2/3)X+(4/3)Y-(2/3)Z):R (wherein L is at least one or more selected from the group II Elements consisting of Mg, Ca, Sr, Ba and Zn, M is at least one or more selected from the Group IV Elements in which Si is essential among C, Si and Ge, and R is at least o ne or more selected from the rare earth elements in which Eu is essential among Y, La, Ce, Px, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er and Lu.); contains the another elements.