| abstract |
The invention discloses a particle size controllable laser scatterer and a preparation method and application thereof. The laser scatterer has a three-dimensional porous network structure formed by interconnecting nanoparticles, the particle size of the nanoparticles is 5-1000nm, and the light transmittance of the particle-size controllable laser scatterer in the wavelength of 200-2500nm is 0～90%, reflectivity 0～99%. The preparation method includes: hydrolyzing and polycondensing an organosiloxane precursor under catalyst conditions to form a gel, and obtaining a particle size-controllable laser scatterer through the steps of solvent replacement, modification and drying. The invention also discloses a laser fluorescent lighting device and a laser fluorescent lighting material. The particle size-controllable laser scatterer of the invention has a high scattering rate, can scatter a highly concentrated laser source into a three-dimensional uniform light source, and at the same time has a simple preparation process and mild reaction conditions, and can be used in laser illumination, laser scattering, laser display and laser protection. It has great application prospects in other fields. |