Synthesis And Performance Investigation Of Rare Earth And Luminescence Materials

The luminescent material has been a hot topic in today's research because of its wide application field. In addition to the well-known applications in the field of lighting, in the field of optoelectronic devices,display devices and other applications has been a big breakthrough. This paper mainly discusses the preparation and application of rare earth and/or transition metal ions doped luminescent materials.A series of rare earth (including Ce3+, Tb3+, Dy3+, Eu3+) doped SrZrF6 have been successfully synthesized via hydrothermal method and corresponding characterizations on these materials, including X-ray diffraction (XRD), scanning election microscope (SEM) and steady state spectra have been investigated and reported in chapter 3 of this dissertation. Researches on optimal synthetic condition of SrZrF6-based phosphors have in particular been performed and exhibited in this chapter.Chapter 4 of thesis reports a variety of non-rare-doped red phosphors whose chemical composition can be represented as MGe4O9:Mn4+ (M=K2,Ba or Sr). Not merely have various performance and properties of these materials been measured, but also the relationship between luminescent intensity and the concentration of dopant ions Mn4+ has been detailedly studied. In this part, we discuss the appropriate coordination environment for Mn4+ in visible light-emitting oxy-compound.In chapter 5 of this paper, Ca14Al10Zn6O35:Bi3+ phosphor has been successfully prepared and reported at the first time. By co-doping Bi3+and Mn4+/Eu3+, energy transfer between ion paies would occur in phosphors and we conducted detailed investigations and researches on this phenomenon.