Photoluminescence and thermoluminescence properties of dysprosium doped zinc metaborate phosphors

被引：45
作者：
Li Juan [1 ,2 ]
Zhang Chunxiang [3 ]
Tang Qiang [3 ]
Hao Jingquan [2 ]
Zhang Yanli [4 ]
Su Qiang [2 ,5 ]
Wang Shubin [2 ]
机构：
[1] Beihua Univ, Chem & Biol Coll, Jilin 132013, Peoples R China
[2] Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Rare Earth Chem & Phys, Changchun 130022, Peoples R China
[3] Sun Yat Sen Univ, Dept Phys, Guangzhou 510275, Guangdong, Peoples R China
[4] Natl Inst Metrol, Ionizing Radiat Div, Beijing 130000, Peoples R China
[5] Sun Yat Sen Univ, Sch Chem & Chem Engn, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China
来源：
JOURNAL OF RARE EARTHS | 2008年 / 26卷 / 02期
关键词：
thermoluminescence; dysprosium; dosimetry; zinc metaborate; gamma-ray; rare earths;
D O I：
10.1016/S1002-0721(08)60065-4
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Polycrystalline powder samples of dysprosium doped Zn(BO2)(2) phosphors were prepared by solid state reaction in air at high temperature and characterized by X-ray powder diffraction. The IR, Photoluminescence (PL), diffuse reflectance and three-dimensional (3D) thermoluminescence (TL) emission spectrum after Co-60 gamma ray irradiation were investigated. The characteristic 3D TL emission bands at about 425, 481 and 573 rim with a main emission band of around 573 nm were attributed to the host emission, F-4(9/2) -> H-6(15/2) and F-9/2 -> H-6(13/2) f-f transitions of Dy3+ ions. No emission from Dy2+ ions was observed in the measurement wavelength range. The TL-dose response of the Zn(BO2)(2):Dy polycrystalline powder sample to gamma ray radiation in the range from 1 to 100 Gy at clinical dose levels was almost linear. The experimental results showed that Zn(BO2)2:Dy had potential use as the materials of gamma-ray thermoluminescence dosimeter (TLD) for clinical dosimetry.
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收藏
页码：203 / 206
页数：4
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