%0 Journal Article
%T Luminescence of Eu2+ in Sr2Al6O11-Based Phosphor<br>Eu2+离子在Sr2Al6O11基磷光体中发光行为的研究
%A ZHAO Shu-Jin
%A LIN Yuan-Hua
%A ZHANG Zhong-Tai
%A NAN Ce-Wen
%A <br>赵淑金
%A 林元华
%A 张中太
%A 南策文
%J 无机材料学报
%D 2003
%I Science Press
%X The effects of different doping concentration of Eu2+ on the properties of Sr2Al6O11-based phosphor were studied. The results indicate that there are two main emission peaks at 403nm and 493nm existing in the phosphor, while the doping concentration of Eu2+ is below 0.01mol, which are corresponding to various Sri and Sr2 sites in the Sr2Al6O11 matrix. While increasing the doping concentration of Eu2+, the emission peak of 403nm disappears and the peak of 493nm becomes strong simultaneously due to the energy transfer between the different Eu2+ centers. Decay curves imply that the phosphor without co-doping Dy3+ has no long afterglow properties. When the doping concentration of Eu2+ is 0.01mol, the long afterglow is the best in three experimental samples with different Eu2+ contents. The luminescent properties will decrease while increasing the doping concentration of Eu2+ due to the concentration quenching.
%K phosphor
%K emission spectra
%K long afterglow<br>Sr2Al6O11基磷光体
%K 发光行为
%K 发射光谱
%K 长余辉发光材料
%K 铝酸锶
%K 铕
%K 掺杂
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=ABC0063016AF57E1C73EF43C8D2212BD&aid=E63FB2601006FFD2&yid=D43C4A19B2EE3C0A&vid=13553B2D12F347E8&iid=CA4FD0336C81A37A&sid=4966445AEEBA9556&eid=CA5852BD1A173B3A&journal_id=1000-324X&journal_name=无机材料学报&referenced_num=2&reference_num=11