Open AccessEffect of H3BO3 on structure and long persistence properties of Y1.98O3：Eu, Dy red long-afterglow phosphor
Author(s) -
Wei Xie,
Yinhai Wang,
Jun Quan,
Chen Zou,
Feng Liang,
Liang Shao
Publication year - 2014
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.63.016101
Subject(s) - phosphor , afterglow , thermoluminescence , materials science , luminescence , photoluminescence , analytical chemistry (journal) , emission spectrum , diffraction , optics , spectral line , optoelectronics , physics , chemistry , chromatography , astronomy , gamma ray burst
The phosphor Y1.98O3: Eu0.013+, Dy0.013+ was prepared by high temperature solid reaction method. X-ray powder diffraction (XRD), scanning electronic microscope (SEM), photoluminescence spectra (PL), and single-photon counter system were used to investigate the structure, morphology, luminescent properties, and decay characteristics of the phosphor Y1.98O3: Eu0.013+, Dy0.013+ which was synthesized with different contents of H3BO3. Results show that the structure of the H3BO3-contained phosphors can keep Y2O3 matrix when the content of H3BO3 is below 8%(mol), and the particles size of phosphors increases during the addition of H3BO3. The luminescence of phosphors come from the transition of 5D0→7FJ of Eu3+, the main emission peaks at 612 nm and the intensity is increased linearly with the increase of H3BO3 content. Phosphors show better afterglow characteristics during the increase of H3BO3.The measurement of thermoluminescence(TL) reveals that the addition of H3BO3 increases the trap depth and trap concentration in the host, hence the afterglow characteristics become better.