浏览全部资源
扫码关注微信
东北师范大学 物理学院,吉林 长春,130021
纸质出版日期:2015-10-10,
收稿日期:2015-7-23,
修回日期:2015-8-25,
扫 描 看 全 文
吕玲, 张猛, 祝汉成等. 12CaO&middot;7Al<sub>2</sub>O<sub>3</sub>:Ce<sup>3+</sup>透明陶瓷的制备及其闪烁特性研究[J]. 发光学报, 2015,36(10): 1101-1105
LYU Ling, ZHANG Meng, ZHU Han-cheng etc. Synthesis and Scintillation Properties of 12CaO&middot;7Al<sub>2</sub>O<sub>3</sub>:Ce<sup>3+</sup> Transparent Ceramics[J]. Chinese Journal of Luminescence, 2015,36(10): 1101-1105
吕玲, 张猛, 祝汉成等. 12CaO&middot;7Al<sub>2</sub>O<sub>3</sub>:Ce<sup>3+</sup>透明陶瓷的制备及其闪烁特性研究[J]. 发光学报, 2015,36(10): 1101-1105 DOI: 10.3788/fgxb20153610.1101.
LYU Ling, ZHANG Meng, ZHU Han-cheng etc. Synthesis and Scintillation Properties of 12CaO&middot;7Al<sub>2</sub>O<sub>3</sub>:Ce<sup>3+</sup> Transparent Ceramics[J]. Chinese Journal of Luminescence, 2015,36(10): 1101-1105 DOI: 10.3788/fgxb20153610.1101.
采用高温固相法制备了不同Ce
3+
掺杂浓度的12CaO7Al
2
O
3
(C12A7:
x
%Ce
3+
)陶瓷样品。在350 nm紫外光激发下
样品的发射光谱呈现为主峰位于440 nm的宽带
来源于Ce
3+
的5d
1
2
F
5/2
和
2
F
7/2
的辐射跃迁。随着Ce
3+
掺杂浓度的增加
发射强度增大;当Ce
3+
摩尔分数超过0.7%时
有杂质相出现。为了进一步提高光致发光强度
采用自蔓延燃烧法合成了C12A7:0.5%Ce
3+
陶瓷样品。在H
2
气氛下热处理
通过改变笼中阴离子基团的种类和数目提高了陶瓷闪烁特性(发光强度和衰减时间)。结果表明
C12A7:Ce
3+
陶瓷是可应用于闪烁体的潜在材料。
12CaO7Al
2
O
3
:Ce
3+
(C12A7:
x
%Ce
3+
) transparent ceramics were synthesized by a solid state method. Upon 350 nm UV excitation
a broad emission band located around 440 nm can be observed and it can be attributed to the transitions from 5d
1
to
2
F
5/2
and
2
F
7/2
of Ce
3+
respectively. It can be seen that the emitting intensity increases with the increasing of Ce
3+
doping concentration. When the mole fraction of Ce
3+
exceeds 0.7%
other impurities appear. To enhance the emitting intensity
C12A7:0.5%Ce
3+
transparent ceramics were prepared by a self-propagating combustion method. For the samples annealed in H
2
ambient
the scintillation properties
such as the emitting intensity and decay time
are improved by controlling sorts and amounts of encaged anions in C12A7. The experiment results show that Ce
3+
doped C12A7 might be a potential scintillation material.
12CaO&middot7Al2O3Ce3+闪烁特性衰减时间陶瓷
12CaO&middot7Al2O3Ce3+scintillation propertiesdecay timeceramics
Liu S, Feng X, Shi Y, et al. Fabrication, microstructure and properties of highly transparent Ce3+:Lu3Al5O12 scintillator ceramics [J]. Opt. Mater., 2014, 36(12):1973-1977.
Sakthong O, Chewpraditkul W, Wanarak C, et al. Scintillation properties of Gd3Al2Ga3O12:Ce3+ single crystal scintillators [J]. Nucl. Instrum. Methods Phys. Res. A, 2014, 751:1-5.
Wei Q, Liu G, Zhou Z, et al. Preparation and spectroscopic properties of Ce-doped La2Si2O7 as novel scintillator materials [J]. Mater. Lett., 2014, 126:178-180.
Yanagida T, Fujimoto Y, Watanabe K, et al. Scintillation and optical stimulated luminescence of Ce-doped CaF2 [J]. Rad. Meas., 2014, 71:162-165.
Chen Q W, Shi Y, Shi J L. The latest progress in ceramic scintillators research [J]. Mater. Sci. Eng.(材料科学工程), 2005, 23(1):128-132 (in Chinese).
Drozdowski W, Wojtowicz A J, ?ukasiewicz T, et al. Scintillation properties of LuAP and LuYAP crystals activated with cerium and molybdenum [J]. Nucl. Instrum. Methods Phys. Res. A, 2006, 562(1):254-261.
Fan L, Shi Y, Xu J, et al. Consolidation of translucent Ce3+-doped Lu2SiO5 scintillation ceramics by pressureless sintering [J]. J. Mater. Res., 2014, 29(19):2252-2259.
Hu C, Liu S P, Fasoli M, et al. ESR and TSL study of hole and electron traps in LuAG:Ce,Mg ceramic scintillator [J]. Opt. Mater., 2015, 45:252-257.
Kamada K, Nikl M, Kurosawa S, et al. Co-doping effects on luminescence and scintillation properties of Ce doped Lu3Al5O12 scintillator [J]. Nucl. Instrum. Methods Phys. Res. A, 2015, 782:9-12.
Liu Y X, Ma L, Yan D T, et al. Effects of encaged anions on the optical and EPR spectroscopies of RE doped C12A7 [J]. J. Lumin., 2014, 152:28-32.
Bian H Y, Liu Y X, Yan D T, et al. Spectral modulation through controlling anions in nanocaged phosphors [J]. J. Mater. Chem. C, 2013, 1(47):7896-7903.
Liu X L, Liu Y X, Yan D T, et al. A multiphase strategy for realizing green cathodoluminescence in 12CaOAl2O3-CaCeAl3O7:Ce3+,Tb3+ conductive phosphor [J]. Dalton Trans., 2013, 42(46):16311-16317.
Liu X L, Liu Y X, Yan D T, et al. Single-phased white-emitting 12CaO7Al2O3:Ce3+,Dy3+ phosphors with suitable electrical conductivity for field emission displays [J]. J. Mater. Chem., 2012, 22(33):16839-16843.
Li L, Liang H B, Tian Z F, et al. Luminescence of Ce3+ in different lattice sites of La2CaB10O19 [J]. J. Phys. Chem. C, 2008, 112:13763-13768.
Xu J, Fan L, Shi Y, et al. Effects of Ce3+ doping concentrations on microstructure and luminescent properties of Ce3+:Lu3Al5O12 (Ce:LuAG) transparent ceramics [J]. Opt. Mater., 2014, 36(12):1954-1958.
Liang H B, Tian Z F, Zhong J P, et al. Luminescence of Ce3+ activated (fluoro-) phosphates under VUV-UV and X-ray excitation [J]. Chin. J. Lumin.(发光学报), 2011, 32(5):411-416 (in Chinese).
Qu G Y, Dong N, Guo H, et al. Synthesis and spectroscopic properties of MBPO5 Ce3+(M=Ca, Sr, Ba) [J]. Chin. J. Lumin.(发光学报), 2005, 26(2):199-204 (in Chinese).
Gong L, Lin Z, Ning S, et al. Synthesis and characteristics of the C12A7-O- nanoparticles by citric acid sol-gel combustion method [J]. Mater. Lett., 2010, 64(11):1322-1324.
Jia D, Jia W, Wang X J, et al. Quenching of thermo-stimulated photo-ionization by energy transfer in CaAl4O7:Tb3+, Ce3+ [J]. Solid State Commun., 2004, 129(1):1-4.
Tldsepp E, Avarmaa T, Denks V, et al. Synthesis and luminescence properties of Ce3+ doped nanoporous 12CaO7Al2O3 powders and ceramics [J]. Opt. Mater., 2010, 32(8):784-788.
Hayashi K, Kamiya T, Hirano M, et al. Light-induced conversion of an insulating refractory oxide into a persistent electronic conductor [J]. Nature, 2002, 419:462-465.
Sushko P V, Shluger A L, Hirano M, et al. From insulator to electride: A theoretical model of nanoporous oxide 12CaO 7Al2O3 [J]. JACS, 2006, 129:942-951.
Su Q. Rare Earth Chemistry [M]. Zhengzhou: Henan Science and Technology Press, 1993:285-288 (in Chinese).
Sun J Y, Du H Y. Luminescent Material [M]. Beijing: Chemical Industry Press, 2003:97-99 (in Chinese).
0
浏览量
35
下载量
1
CSCD
关联资源
相关文章
相关作者
相关机构