| Bi2O3-B2O3-BaO玻璃的制备及其近红外发光性能的研究 |
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| 引用本文： | 刘军芳,苏良碧,徐军.Bi2O3-B2O3-BaO玻璃的制备及其近红外发光性能的研究[J].物理学报,2013,62(3):37804-037804. |
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| 作者姓名： | 刘军芳 苏良碧 徐军 |
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| 作者单位： | 1. 同济大学材料科学与工程学院, 上海 200092;
2. 同济大学, 先进土木工程材料教育部重点实验室, 上海 200092;
3. 中国科学院上海硅酸盐研究所, 透明与光功能无机材料重点实验室, 上海 201800 |
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| 基金项目： | 国家自然科学基金青年科学基金(批准号: 61008045)和中央高校基本科研业务费专项资金资助的课题. |
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| 摘 要： | 采用高温熔融法制备了xBi2O3-50B2O3-(50-x)BaO玻璃, 测定了样品玻璃的近红外光区的发射谱、荧光寿命以及Raman光谱. 在808 nm波长光的激发下, 50Bi2O3-50B2O3二元玻璃中未观察到近红外发光; 随体系中BaO的加入, 当x为40, 45以及49时, 玻璃样品中观察到了近红外宽带发光现象; BaO含量进一步增加, 当x=10–30时, 近红外发光现象消失; 而当玻璃中Bi浓度很低时, 在0.5Bi2O3-50B2O3-50BaO及1Bi2O3-50B2O3-50BaO玻璃中发现了近红外发光现象, 且存在多个发光峰. 对铋离子近红外发光机理进行了初步的探讨.
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| 关 键 词： | 近红外发光 Bi离子 非桥氧 |
| 收稿时间： | 2012-06-19 |
Preparation and near-infrared luminescence properties of Bi2O3-B2O3-BaO glasses |
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| Liu Jun-Fang,Su Liang-Bi,Xu Jun.Preparation and near-infrared luminescence properties of Bi2O3-B2O3-BaO glasses[J].Acta Physica Sinica,2013,62(3):37804-037804. |
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| Authors: | Liu Jun-Fang Su Liang-Bi Xu Jun |
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| Institution: | 1. College of Materials Science and Engineering, Tongji University, Shanghai 200092, China;
2. Key Laboratory of Advanced Civil Engineering Materials (Tongji University), Ministry of Education, Shanghai 200092, China;
3. Key Laboratory of Transparent and Opto-Functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800, China |
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| Abstract: | xBi2O3-50B2O3-(50-x)BaO glasses are prepared by melting method. Their infrared luminescence spectra, fluorescence decay curves and Raman scattering spectra are measured. No obvious near-infrared (NIR) luminescence is observed in 50Bi2O3-50B2O3 glass under 808 nm laser diode (LD) pumping. Adding BaO, broadband NIR luminescences are observed in 40Bi2O3-50B2O3-10BaO glass, 45Bi2O3-50B2O3-5BaO glass and 49Bi2O3-50B2O3-1BaO glass. With the increase of BaO concentration, no obvious NIR luminescences are observed in 30Bi2O3-50B2O3-20BaO glass, 20Bi2O3-50B2O3-30BaO glass and 10Bi2O3-50B2O3-40BaO glass. The NIR emissions with several emission peaks appear in 0.5Bi2O3-50B2O3-50BaO glass and 1Bi2O3-50B2O3-50BaO glass. The mechanism for the emission is investigated preliminarily. |
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| Keywords: | near infrared emission Bi ions non-bridging oxygen |
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