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个人信息Personal Information
教授
博士生导师
硕士生导师
性别：男
毕业院校：吉林大学
学位：博士
所在单位：化工学院
学科：化学工艺. 功能材料化学与化工. 无机化学
办公地点：大连理工大学西部校区化工综合楼D401
联系方式：0411-84986067（办公室） junweiye@dlut.edu.cn
电子邮箱：junweiye@dlut.edu.cn
Synthesis and luminescence properties of a novel Eu3+, Tb3+ co-doped Al18B4O33 whiskers by a gel nano-coating method
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论文类型：期刊论文
发表时间：2011-03-01
发表刊物：JOURNAL OF MATERIALS SCIENCE
收录刊物：SCIE、EI
卷号：46
期号：5
页面范围：1259-1263
ISSN号：0022-2461
摘要：Al18B4O33:Eu3+, Tb3+ whiskers have been successfully prepared by a simple gel nano-coating method using aluminum isopropoxide as the starting materials. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), selected area electron diffraction (SAED), photoluminescence (PL), and thermogravimetric analysis (TGA) were used characterize the samples. The results show coexistence of the crystal phase Al18B4O33, amorphous phase, and Eu3+, Tb3+ ions of the samples with initial addition Al/B ratios from 3 to 1 are incorporated into the amorphous phase. The Al18B4O33:Eu3+, Tb3+ whiskers are very straight with an average diameter of 600 nm and lengths ranging from 5 to 10 mu m. Under ultraviolet excitation at 365 nm, samples show mainly exhibit the characteristic emission of Eu3+ corresponding to D-5(0) -> F-1,F-2 transitions due to an efficient energy transfer occurs from Tb3+ to Eu3+.