| 银微粒表面吸附若丹明B分子荧光增强和淬灭的研究 |
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| 引用本文： | 方炎,魏凤文,王亚利,于永澄.银微粒表面吸附若丹明B分子荧光增强和淬灭的研究[J].物理学报,1994,43(4):555-559. |
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| 作者姓名： | 方炎 魏凤文 王亚利 于永澄 |
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| 作者单位： | 首都师范大学实验中心,北京100037 |
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| 基金项目： | 北京市自然科学基金资助的课题. |
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| 摘 要： | 研究了若丹明B分子的530.0和572.0nm两个荧光峰在银微粒表面的增强和淬灭效应,发现若丹明B分子的530.0nm荧光峰获得了30倍的增强,而与此同时,572.5nm荧光峰则强烈淬灭。对其快速动力学过程的研究表明,这两个荧光峰的增强和淬灭过程在每一时刻都是互逆的。
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| 关 键 词： | 银 吸附 若丹明B分子 荧光 RhB |
| 收稿时间： | 1993-05-21 |
QUENCHING AND ENHANCEMENT OF FLAORESCENCE OF DYE MOLECULE ON SILVER COLLOID |
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| FANG YAN,WEI FENG-WEN,WANG YA-LI and YU YONG-CHENG.QUENCHING AND ENHANCEMENT OF FLAORESCENCE OF DYE MOLECULE ON SILVER COLLOID[J].Acta Physica Sinica,1994,43(4):555-559. |
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| Authors: | FANG YAN WEI FENG-WEN WANG YA-LI and YU YONG-CHENG |
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| Abstract: | The surface fluorescence of Rhodamine B (RhB) adsorbed on colloidal silver was investigated. It was found that the 572.5 nm fluorescence band of RhB quenched sharply. However, at the same time the enhancement factor of the other fluorescence band of RhB at 530.0 nm was up to 60 when Ag sol was added.The time-effect fluorescence spectra of RhB adsorbed on Ag surface have been observed by OMA, showing that the quenching and enhancement processes of these two bands were inversed each other at any moment of observation. |
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