The blue shift and the change of luminescentintensity can be attributed to the quantum-size-effect of the phosphor particles.
并认为蓝移现象以及余辉衰减变快，主要归因于发光粉体纳米粒子的量子尺寸效应的影响。
2
Spherical particles have minimum scattering area, high packing density; which is beneficial to the luminescentintensity and lifetime of the devices.
球形颗粒荧光粉的光散射面积最小，堆积密度大，有助于提高发光材料的发光强度和使用寿命。
3
The coating is environmentally friendly and has longer luminescence afterglow time and higher luminescentintensity than corresponding luminescent powder.