title: Hydrothermal synthesis and photoluminescent properties of rod-shape assemblies of LaBO3:Eu3+ nanocrystals.
abstract: Uniform and assembled LaBO3 nanocrystals have been successfully synthesized via a facile hydrothermal method. These assemblies exhibit a rod-shape morphology and each of them consists of small LaBO3 nanocrystals which are tightly attached together. The phase, surface and morphology of these assemblies have been characterized. A possible assembly mechanism of such morphology is also proposed through investigation on the formation process. Photoluminescent spectra suggest that these assemblies doped with Eu3+ can give stronger red emissions than the orange one due to its aragonite structure. Such emission has been explained by the Judd-Ofelt theory. It is expected that these well-defined LaBO3 assemblies could find applications in future luminescent displays and lamps.
authors.forename: Yubin
authors.initials: Y
authors.lastname: Zeng
authors.forename: Qingling
authors.initials: Q
authors.lastname: Tao
authors.forename: Congling
authors.initials: C
authors.lastname: Li
authors.forename: Zhengquan
authors.initials: Z
authors.lastname: Li
mesh_terms: D001896:Boron Compounds / Q000737:chemistry*; D003460:Crystallization / Q000379:methods; D005063:Europium / Q000737:chemistry*; D006358:Hot Temperature; D007811:Lanthanum / Q000737:chemistry*; D008163:Luminescent Measurements / Q000379:methods*; D008422:Materials Testing; D043942:Nanotubes / Q000737:chemistry* / Q000528:radiation effects*; D010316:Particle Size; D014867:Water / Q000737:chemistry*
chemical_list: D001896:Boron Compounds; D014867:Water; D005063:Europium; D007811:Lanthanum