Luminescent Properties in Relation to Controllable Phase and Morphology of LuBO3:Eu3+ Nano/Microcrystals Synthesized by Hydrothermal Approach

Content Provider	Semantic Scholar
Author	Li, Yanping Zhang, Jiahua Zhang, Xingliang Luo, Yongshi Lu, Shaozhe Ren, Xinguang Wang, Xiaojun Sun, Ling-Dong Yan, Chun-Hua
Copyright Year	2009
Abstract	The calcite and vaterite type LuBO3:Eu3+ nano/microcrystals with various morphologies were synthesized by the hydrothermal (HT) approach through controlling the pH values of the precursor solutions. The calcite type LuBO3:Eu3+ shows the dominant magnetic dipole 5D0−7F1 emission due to S6 inversion symmetry of Lu. It also shows a symmetrical O−Eu charge transfer (CT) excitation band, which, however, is asymmetrical and broad in the material prepared by the solid-state (SS) reaction method. The effect of the residual OH− groups introduced in HT synthesis is discussed on O−Lu exciton annihilation and local environment distortion. Two different Eu3+ centers, one of which is with inversion symmetry, are observed in vaterite type LuBO3:Eu3+. The HT sample with nanostructures, such as vaterite type flowerlike LuBO3:Eu3+, demonstrates a red shift of the CT band and appearance of a long excitation tail at the long wavelength side of the CT band. XRD, selective excitation and fluorescence decay measurements indicat.
Starting Page	468
Ending Page	475
Page Count	8
File Format	PDF HTM / HTML
DOI	10.1021/cm802015u
Volume Number	21
Alternate Webpage(s)	http://bec01.phy.georgiasouthern.edu/xwang/research/Chem%20Mater%2021%202009%20Li%20YP.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article