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Fabrication and Luminescence Study of Ce3+-doped YAG Transparent Ceramics
SHI Yun,PAN Yu-Bai,FENG Xi-Qi,LI Jiang,Guo Jin-Kun
无机材料学报 , 2010, DOI: 10.3724/sp.j.1077.2010.00125
Abstract: 0.3at% Ce∶YAG (Y3Al5O12) transparent ceramics was fabricated by a solid state reaction method, with the high pure (≥99.99%) commercial powders α-Al2O3, Y2O3, CeO2 using as raw materials. The ceramic green bodies were sintered in 1750℃ for 10h in vacuum. The linear transmission of the prepared Ce∶YAG ceramics in visible range 500-900nm reaches about 80% homogeneously (1.2mm thick, double polished). Photoluminescence properties show that the emitting band of the Ce∶YAG ceramics lies in 500-700nm, which is the characteristic emitting of Ce3+. It is concluded that the Ce∶YAG transparent ceramics is a promising scintillator materials especially for middle-low energy ray detecting.
XPS在YAG:Ce3+荧光粉中Ce3+半定量分析方面的应用  [PDF]
王廉明,庄李强,黄月霞,王德强
华东理工大学学报 , 2015,
Abstract: 利用XPS测试方法对YAG:Ce3+荧光粉中的Ce3+含量进行了半定量分析,为研究Ce3+含量与YAG:Ce3+荧光粉发光强度的关系,在不同的烧结气氛下制备了一系列YAG:Ce3+荧光粉样品。通过分峰拟合计算可知,在4种不同的制备条件下,Ce3+的相对含量(fCe3+,用Ce3+峰面积与Ce3++Ce4+峰面积之比来估算)分别是88.46%,77.55%,75.33%和68.14%,所对应的烧结气氛依次为CO和N2的混合气氛、CO气氛、N2气氛和空气烧结气氛。YAG:Ce3+荧光粉的发光强度随着Ce3+相对含量的增加有显著增强。
Effects of Ce3+ ions on the spectroscopic properties of fluorophosphate glasses codoped with Er3+/Yb3+
Ce3+对Er3+/Yb3+共掺氟磷酸盐玻璃光谱性质的影响

Li Tao,Zhang Qin-Yuan,Jiang Zhong-Hong,
李 涛
,张勤远,姜中宏

物理学报 , 2006,
Abstract: 研究了能量接受离子Ce3+对Er3+上转换发光强度以及Er3+在1.5μm附近波段发光性能参数的影响,并从能量匹配及能级结构角度出发对Er3+/Ce3+间的能量转移机制进行了分析.分析认为,4I11/2能级的Er3+通过无辐射能量转移把能量传递给2F5/2能级的Ce3+
ce3+/er3+/yb3+共掺锑硅酸盐玻璃的光谱性质  [PDF]
王琰,钱奇,杨钢锋,张勤远1,姜中宏,
武汉理工大学学报 , 2009,
Abstract: ?研究了能量接受离子ce3+对er3+离子上转换荧光强度以及1.5μm荧光特性的影响。根据ce3+?和er3+离子的能级结构按能量匹配原理对er3+/yb3+/ce3+共掺杂的锑硅酸盐玻璃中稀土离子间的能量转移机制进行了分析。分析表明,er3+离子在4i11/2能级上通过无辐射驰豫将能量传递给ce3+离子,使ce3+离子由基态2f5/2能级跃迁至2f7/2能级,而er3+离子则由4i11/2能级无辐射跃迁至4i13/2能级,从而有效降低锑硅酸盐玻璃中er3+的上转换发光。实验结果显示,当er3+浓度为1.81×10-20cm-3时,ce3+的最佳掺杂浓度为1.08×10-20cm-3,此时ce3+的引入不仅可以降低上转换发光,而且有效提高er3+离子在1.5μm的荧光强度和4i13/2能级荧光寿命。
Controlled emission and coupling of small-size YAG:Ce3+ nanocrystals to gold nanowire  [PDF]
M. D. Birowosuto,Isnaeni,C. de Mello Donega,A. Meijerink
Physics , 2015, DOI: 10.1063/1.4931578
Abstract: We report a controlled emission of Ce3+ ions inside single Yttrium Aluminum Gar- net Y3Al5O12 (YAG:Ce3+) nanocrystals with a diameter of 22 +- 10 nm as a result of a coupling of a surface plasmon mode propagating along single gold nanowire (NW). From the PL images, the intensity for single YAG:Ce3+ nanocrystals in the proximity of the single gold NW increases by a factor of two in comparison with that without the NW. Also, we observe a maximum of 3.8-fold emission rate en- hancements for the single nanocrystal close to the single gold NW. The emission rate enhancements of YAG:Ce3+ nanocrystals are two folds the enhancements of 100-nm fluorescent nanospheres. This value is in agreement with the calculation of a combi- nation from the analytical scattering model and boundary element method (BEM). We also confirm that the small size light sources are more efficient for the emission rate enhancements. Thus, the controlled emission of small YAG:Ce3+ nanocrystals with the perfect photostabilities will pave the way for the ultimate efficient nanoscale light sources.
ce3+和yb3+对er3+掺杂铋镓铅锗玻璃光谱性质影响  [PDF]
李艳贞,石冬梅,钱奇,张勤远,姜中宏
武汉理工大学学报 , 2010,
Abstract: ?研究了掺杂ce3+和yb3+对er3+掺杂20bi2o3-15ga2o3?45pbo20geo2玻璃1.5 μm波段荧光和可见上转换发光性能的影响,分析了ce3+、yb3+离子和er3+离子间的能量传递过程。结果表明:yb3+离子掺杂在提高er3+离子1.5 μm波段荧光强度的同时,也显著增强了可见上转换红、绿光发射强度。在yb3+/er3+共掺杂玻璃中引入ce3+离子,有效抑制了可见上转换发光,进一步增强了er3+离子1.5 μm波段荧光。
Effect of introducing Ce3+ on the emission properties of Er3+/Yb3+-doped TeO2-WO3-ZnO glasses
Ce3+对Er3+/Yb3+共掺TeO2-WO3-ZnO玻璃发光性能的影响

Li Jia-Cheng,Xue Tian-Feng,Fan You-Yu,Li Shun-Guang,Hu He-Fang,
李家成
,薛天锋,范有余,李顺光,胡和方

物理学报 , 2006,
Abstract: 在Er3+/Yb3+共掺TeO2-WO3-ZnO玻璃中引入Ce3+,研究了Ce3+对Er3+1.5μm发射性能及其上转换发光性能的影响。结果表明,随Ce3+浓度的增加Er3+1.5μm波段的荧光强度先增强后降低,优化的Ce3+掺杂浓度在2.07×1020/cm3左右;1.5μm波段的荧光寿命则随Ce3+浓度的增加有轻微降低,从3.4ms降到3.0ms,但Ce3+浓度的增加对1.5μm波段的荧光半高宽基本无影响;Er3+/Ce3+间的交叉弛豫Er3+(4I11/2)+Ce3+(2F5/2)→Er3+(4I13/2)+Ce3+(2F7/2)使玻璃的上转换发光强度大大降低,但在过高的Ce3+浓度下,Er3+/Ce3+间的另一交叉弛豫Er3+(4I13/2)+Ce3+(2F5/2)→Er3+(4I15/2)+Ce3+(2F7/2)则使Er3+4I13/2能级粒子数减少,导致1.5μm波段荧光强度和荧光寿命降低.
易分散球形yag:ce3+荧光粉的制备和性能  [PDF]
王磊,姜奉华,巩海波,王介强
材料研究学报 , 2012,
Abstract: ?将微波均相沉淀与喷雾干燥相结合,并添加助熔剂辅助煅烧制备出单相yag:ce3+荧光粉体,研究了微波均相沉淀与喷雾干燥的共同作用对煅烧条件和yag:ce3+荧光粉颗粒形貌、分散性和荧光性能的影响。结果表明,这种单相yag:ce3+荧光粉体具有良好分散性,平均粒径为2?μm;将微波均相沉淀与喷雾干燥相结合能制备出分散性好的球形yag前驱体颗粒;添加naf助熔剂使煅烧温度降低至1150℃,并得到纯yag晶相;随着naf添加量的增加荧光粉结晶度提高、发光强度增强、发射光谱蓝移;naf添加量(质量分数)为6%时荧光粉的荧光强度最高,且与单一助熔剂比较,h3bo3--naf混合助熔剂能更好的改善yag:ce3+的荧光性能。
Er3+/Yb3+/Ce3+共掺碲酸盐玻璃光谱特性及能量传递机理  [PDF]
周亚训,徐星辰,王森
硅酸盐学报 , 2012,
Abstract: 为进一步揭示多稀土离子共掺低声子能量玻璃中Er3+的光谱特性及其发光机理,采用高温熔融法制备了Er3+/Yb3+/Ce3+共掺组分为(72.5–x)TeO2–20ZnO–5La2O3–0.5Er2O3–2Yb2O3–xCe2O3(x=0,0.4,0.7,1.0,摩尔分数x%)的碲酸盐玻璃,通过测量吸收光谱、荧光光谱和无掺杂样品的Raman光谱,以及计算相应能级间的吸收截面和受激发射截面,研究并分析了Yb3+和Ce3+离子掺杂对于Er3+的1.55μm波段荧光特性的影响。结果显示Yb3+和Ce3+的引入能显著增强975nm泵浦下Er3+的1.55μm波段荧光强度。分析表明Er3+在1.55μm波段荧光强度的增强主要归结于Yb3+/Yb3+、Yb3+/Er3+离子间的共振能量传递过程以及基于单声子和双声子辅助的Er3+/Ce3+离子间的能量传递过程,并通过计算得到了相应稀土离子间的能量传递微观参数和声子所作的贡献比
Influence of High Phonon Energy Oxide on Spectroscopic Properties of Er3+/Ce3+ Co-doped Tellurite Glasses
WANG Sen, ZHOU Ya-Xun, DAI Shi-Xun, WANG Xun-Si, SHEN Xiang, CHEN Fei-Fei
无机材料学报 , 2012, DOI: 10.3724/sp.j.1077.2012.11572
Abstract: High phonon energy oxides of WO3, SiO2 and B2O3 were introduced into the Er3+/Ce3+ co-doped tellurite glass (TeO2-Bi2O3-TiO2) with low phonon energy, respectively. The absorption spectra in the wavelength region of 400–1700 nm, fluorescence spectra of 1.53μm band, fluorescence lifetimes of Er3+ and Raman spectra of the glasses were measured. The spectral parameters of Er3+ were calculated with the help of McCumber theory. It is shown that the energy transfer process between Er3+ and Ce3+ becomes more effectively when introducing the high phonon energy oxide, and the 1.53μm band fluorescence emission corresponding to Er3+:4I13/2→4I15/2 transition enhances accordingly due to the increased population of Er3+ in the 4I13/2 level. Meanwhile, the fluorescence width at half magnitude (FWHM) and bandwidth quality factor (σe×FWHM) can be improved with the introducing of high phonon energy oxide. The results provide practical significance to obtain the excellent spectroscopic glass host applied for the Er3+-doped fiber amplifier (EDFA).
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