| abstract |
The present invention provides a yellow phosphor capable of remarkably increasing the luminous efficiency compared to YAG: Ce, having a narrow emission peak with good color purity, and capable of increasing the emission intensity without inducing a by-product phase during synthesis. For the purpose. A yellow phosphor mainly containing a crystal composed of a compound represented by the following formula (1). Ln4-x (EuzM1-z) xSi12-yAlyO3 + x + yN18-xy-0.5≰x≰3, 0 <z <0.3, 0 <y≰4 (1) where Ln is the element IIIa And at least one element selected from the group consisting of rare earth elements, and M is at least one element selected from the group consisting of Ca, Ba, Sr and Mg. [Selection figure] None |