| Upconversion luminescence of KGd（MoO_4）_2：Er~（3＋）,Yb~（3＋） powder prepared by Pechini method |
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| 引用本文： | 陈起静,秦连杰,冯志强,葛如,赵相金,徐惠忠. Upconversion luminescence of KGd（MoO_4）_2：Er~（3＋）,Yb~（3＋） powder prepared by Pechini method[J]. 中国稀土学报(英文版), 2011, 29(9): 843-848. DOI: 10.1016/S1002-0721(10)60553-4 |
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| 作者姓名： | 陈起静 秦连杰 冯志强 葛如 赵相金 徐惠忠 |
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| 作者单位： | School of Environmental and Material Engineering;Yantai University; |
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| 基金项目： | Project supported by Shandong Province Natural Science Foundation (Y2008F10); the Award Fund for Prominent Youth Scientists of Shandong Province (2008BS09006); Shandong Province Higher Educational Science and Technology Program (J10LD1810-13) |
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| 摘 要： | Er3+ doped potassium gadolinium molybdate (KGM) phosphor with sensitizer Yb3+ ion was synthesized by the Pechini method using citric acid and ethylene glycol. The crystallization processes of the phosphor precursors were characterized by X-ray diffraction (XRD) and thermogravimetry-differential scanning calorimetry (TG-DSC), which indicated that ultrafine uniform crystallites of KGM:Er,Yb were obtained by sintering the precursors at above 650 ℃ for 5 h. Upconversion luminescence (UL) spectra of the samples ...
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| 关 键 词： | 上转换发光 Pechini法 镱离子 KGD 半导体激光二极管 粉末 制备 差示扫描量热 |
| 收稿时间： | 2011-03-16 |
Upconversion luminescence of KGd(MoO_4)_2:Er~(3+),Yb~(3+) powder prepared by Pechini method |
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| CHEN Qijing,QIN Lianjie,FENG Zhiqiang,GE Ru,ZHAO Xiangjin,XU Huizhong. Upconversion luminescence of KGd(MoO_4)_2:Er~(3+),Yb~(3+) powder prepared by Pechini method[J]. Journal of Rare Earths, 2011, 29(9): 843-848. DOI: 10.1016/S1002-0721(10)60553-4 |
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| Authors: | CHEN Qijing QIN Lianjie FENG Zhiqiang GE Ru ZHAO Xiangjin XU Huizhong |
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| Affiliation: | CHEN Qijing,QIN Lianjie,FENG Zhiqiang,GE Ru,ZHAO Xiangjin,XU Huizhong (School of Environmental and Material Engineering,Yantai University,Yantai 264005,China) |
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| Abstract: | Er3+ doped potassium gadolinium molybdate (KGM) phosphor with sensitizer Yb3+ ion was synthesized by the Pechini method using citric acid and ethylene glycol. The crystallization processes of the phosphor precursors were characterized by X-ray diffraction (XRD) and thermogravimetry-differential scanning calorimetry (TG-DSC), which indicated that ultrafine uniform crystallites of KGM:Er,Yb were obtained by sintering the precursors at above 650 °C for 5 h. Upconversion luminescence (UL) spectra of the samples were studied by a 976 nm semiconductor laser diode (LD) excitation. The UL spectra exhibited the green and red emission bands that were attributed to the 2H11/2, 4S3/2→4I15/2 and 4F9/2→4I15/2 transitions of Er3+, respectively. The possible UL mechanisms of Er3+ were explained by means of an energy level diagram. The maximum luminescent intensity was achieved when the concentration of Er3+, Yb3+ arrived at 1 mol.% and 20 mol.%, respectively. |
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| Keywords: | KGd(MoO4)2:Er3 Yb3 upconversion luminescence Pechini method rare earths |
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