Luminescence Properties Research Of Ce³⁺/Tb³⁺/Mn²⁺ Co-doped Ca₁₁（SiO₄）₄（BO₃）₂ And Eu²⁺single-doped Ca₂Si₄O₇F₂ Si

White light-emitting diodes（WLEDs）are known as the next-generation lighting source for their high efficiency,energy saving,environmental protection and long life.Phosphor as a white light-emitting diode realizes the core material of fluorescence conversion,and its luminescent property is one of the important factors determining the white light-emitting diode.However,in the multi-phase mixed phosphor system,white light emission is unstable due to the problems such as mutual absorption and physicochemical properties of different phosphors.Therefore,the development of single-phase white light-emitting materials with excellent luminescence properties is imminent.Among them,the choice of matrix materials and luminescent centers is crucial.According to research,the composite group can provide a good crystal field environment for different luminescent centers,and has good color balance ability.Therefore,we choose a matrix material containing composite groups as the research object,and choose Ce³⁺with good luminescence properties.Rare earth ions such as Mn²⁺,Tb³⁺,Eu²⁺and Eu³⁺were studied as luminescent centers.In this paper,we used traditional high-temperature solid-phase method to synthesize composite group single-phase white phosphor,meanwhile,we studied the luminescence properties and mechanism of single-phase white light phosphor with topological chemical reaction method（non-contact Al reduction method）.The main research contents of this paper are as follows:（1）In this experiment,we propose a design concept containing composite groups[SiO₄^4-]and[BO₃^3-]as matrix materials,and synthesize a single phase White light-emission phosphor Ca₁₁（SiO₄）₄（BO₃）₂:Ce³⁺,Mn²⁺,Tb³⁺excited by 338 nm using high temperature solid phase method..At the same time,the optical properties such as quantum efficiency and thermal stability are analyzed.Finally,an LED device with Ra=92.2 was packaged using the phosphor and 365 nm UV-chip.（2）We synthesized Ca₂Si₄O₇F₂:Eu²⁺phosphor by topological chemical reaction.Spectral analysis by PL/PLEX and X-ray photoelectron spectroscopy confirmed that the non-contact Al reduction method can remove local trace oxygen atoms,and the oxidation time can be controlled by different reduction time and temperature,and further affects Eu²⁺ions.The crystal field environment at the site enables the regulation of spectral position and intensity.