Open AccessThe study of anti-Stokes photoluminescence properties in the YZr2OZr3:Er3+ nanocrystals
Author(s) -
Xin Wang,
Shan Gao,
AN Li-min,
Kefu Chao,
Zeng Qing-Hui,
Baojiu Chen,
Xianggui Kong
Publication year - 2004
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.53.1972
Subject(s) - nanocrystal , materials science , dopant , nanocrystalline material , photoluminescence , ion , analytical chemistry (journal) , erbium , molar concentration , precipitation , doping , stokes shift , nanotechnology , luminescence , optoelectronics , chemistry , chromatography , physics , organic chemistry , meteorology
The homogeneous precipitation method was used for preparing nanocrystalline erbium-doped Y2O3 with various molar concentrations. These materials synthesized in the system were characterized with XRD, SEM micrograph and PL spectra. Stokes and antiStokes PL emissions of Y2O3:Er3+ nanocrystals were investigated, whose intensities were varied evidently with a range of dopant erbium ions concentration. When the molarity of dopant erbium ions is close to 2.0%, the relative intensities of anti-Stokes PL spectra are dominant. From the XRD and SEM micrograph, the Y2O3:Er3+ nanocrystal with cubic structure is verified and the distribution of particles size is homogeneous. The experimental results indicate that the anti-Stokes emission results from twophoton absorption process in the Y2O3:Er3+ nanocrystal system.