| Er3+/Yb3+共掺Bi2O3-GeO2-Na2O玻璃的上转换发光 |
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| 引用本文： | 陆龙君,聂秋华,徐铁峰,戴世勋,沈祥.Er3+/Yb3+共掺Bi2O3-GeO2-Na2O玻璃的上转换发光[J].中国激光,2006,33(8):117-1121. |
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| 作者姓名： | 陆龙君 聂秋华 徐铁峰 戴世勋 沈祥 |
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| 作者单位： | 宁波大学信息科学与工程学院,浙江,宁波,315211;宁波市新型功能材料及其制备科学实验室--省部共建国家重点实验室培育基地,浙江,宁波,315211 |
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| 基金项目： | 国家自然科学基金;浙江省自然科学基金;浙江省科技厅资助项目 |
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| 摘 要： | 研究了不同Er3 /Yb3 掺杂比46Bi2O3-44GeO2-10Na2O(B46G44N10)(摩尔分数)玻璃的吸收光谱、红外吸收谱和上转换光谱性质,分析了玻璃中Yb3 敏化Er3 的上转换发光机制。测试了Er3 离子在不同Yb3 浓度下玻璃中的上转换荧光强度,得到最佳的掺杂质量比Er3 ∶Yb3 =1∶6。计算了在980 nm激发下Er2O3质量分数为0.5%和Yb2O3质量分数为3.0%的Er3 /Yb3 共掺B46G44N10玻璃的绿光上转换效率为2.27×10-4。比较了不同基质材料玻璃的上转换效率,结果表明B46G44N10玻璃是一种良好的上转换基质材料。
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| 关 键 词： | 材料 发光机制 铋锗酸盐玻璃 上转换效率 |
| 文章编号： | 0258-7025（2006）08-1117-05 |
| 收稿时间： | 2006-02-24 |
| 修稿时间： | 2006-04-11 |
Upconversion Emission of Er3+/Yb3+-Codoped Bi2O3-GeO2-Na2O Glasses |
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| LU Long-jun,NIE Qiu-hua,XU Tie-feng,DAI Shi-xun,SHEN Xiang.Upconversion Emission of Er3+/Yb3+-Codoped Bi2O3-GeO2-Na2O Glasses[J].Chinese Journal of Lasers,2006,33(8):117-1121. |
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| Authors: | LU Long-jun NIE Qiu-hua XU Tie-feng DAI Shi-xun SHEN Xiang |
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| Abstract: | The absorption spectra, infrared (IR) absorption spectra and upconversion fluorescence spectra of a series of Er3+/Yb3+-codoped 46Bi2O3-44GeO2-10Na2O (B46G44N10) glasses were investigated, and upconversion luminescence mechanisms of Yb3+ sensitize Er3+ were analyzed. Upconversion fluorescence intensities of Yb3+ sensitize Er3+ were measured, the optimal doping ratio of Er3+ and Yb3+ was 1∶6 for this glass, which resulted in the strongest upconversion fluorescence intensities. An upconversion efficiency of 2.27×10-4 was calculated for green emission from the B46G44N10 glass with 0.5 wt.-% Er2O3, and 3.0 wt.-% Yb2O3 pumped by 980 nm. Results indicated that this kind of bismuth glasses might be potential materials for developing upconversion optical devices. |
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| Keywords: | materials luminescence mechanism bismuth-germanate glasses upconversion efficiency |
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