WAVELENGTH CONVERSION ELEMENT INCLUDING PHOSPHOR PARTICLES, AND LED ELEMENT AND SEMICONDUCTOR LASER LIGHT EMITTING DEVICE USING WAVELENGTH CONVERSION ELEMENT

摘要

A wavelength conversion element includes: a plurality of phosphor particles; a first matrix located among a part of the plurality of phosphor particles and formed of zinc oxide in a c-axis orientation; and a second matrix located among a remaining part of the plurality of phosphor particles and formed of a material having a refractive index that is lower than a refractive index of the zinc oxide.