@article {HUANG:2013:0454-5648:776,
title = "Effect of Calcination Temperature on Morphology and Properties of White Long-lasting Phosphor Y2O2S:Tb3+, Sr2+, Zr4+",
journal = "Journal of The Chinese Ceramic Society",
parent_itemid = "infobike://ccs/jccs",
publishercode ="ccs",
year = "2013",
volume = "41",
number = "6",
publication date ="2013-06-01T00:00:00",
pages = "776-781",
itemtype = "ARTICLE",
issn = "0454-5648",
url = "https://www.ingentaconnect.com/content/ccs/jccs/2013/00000041/00000006/art00010",
doi = "doi:10.7521/j.issn.0454–5648.2013.06.10",
keyword = "rare earths, solid state reaction method, yttrium oxysulfide, white-light long-lasting phosphor",
author = "HUANG, Ping and YANG, Fan and CUI, Caie and WANG, Lei and LEI, Xing",
abstract = "The white-light long-lasting phosphor of Y2O2S:Tb3+, Sr2+, Zr4+ was prepared by a solid state reaction method. The effect of calcination temperature on the phase, surface morphology and luminescent properties of the samples was
investigated. The samples were characterized by X-ray diffractometer, scanning electron microscope, fluorescence spectrophotometer, illuminometer and thermally stimulated spectrometer, respectively. The results show that the samples are composed of Y2O2S and Y2O3
phases, in which Y2O3 is a major phase at the calcination temperature of 950 . The pure Y2O2S phase was obtained at 1 000 and 1 050 . Y2O3 phase appeared at > 1 050 . The position and shape of Tb3+ emission peaks
under the 288 nm excitation appeared similar for all the samples. The blue light emission at 417 nm and the yellowish-green light emission at 544 nm originated from the 5D37F5 and the 5D47F5
transitions of Tb3+, respectively. The trap depth was 0.64 eV and the decay time was 160 s (1 mcd/m2) for the sample synthesized at 1 000 .",
}