| 纳米银粒子表面包覆分子共振吸收峰的红移现象 |
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| 引用本文： | 苗润才,陈国夫.纳米银粒子表面包覆分子共振吸收峰的红移现象[J].光子学报,1999,28(6):527-530. |
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| 作者姓名： | 苗润才 陈国夫 |
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| 作者单位： | 陕西师范大学物理系!西安，710062，陕西师范大学物理系!西安，710062，中国科学院西安光学精密机械研究所瞬态室!西安，710068 |
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| 摘 要： | 本文首次发现了两种电性不同的染料分子若丹明6G及荧光素钠包覆纳米银粒子时,染料分子共振吸收峰的红移现象,以及产生红移的条件。前者只有在KC1、KBr、KI等电解质存在时才产生红移;而后者则无需这些电解质存在。其红移量分别为27um及13nm.并对产生红移的机理进行了讨论。
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| 关 键 词： | 纳米银 染料分子 吸收红移 |
| 收稿时间： | 1999-04-30 |
ABSORPTION REDSHIFT OF MOLECULES COVERED SILVER NANOPARTICLE SURFACE |
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| Miao Runcai,Si Minzhen.ABSORPTION REDSHIFT OF MOLECULES COVERED SILVER NANOPARTICLE SURFACE[J].Acta Photonica Sinica,1999,28(6):527-530. |
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| Authors: | Miao Runcai Si Minzhen |
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| Institution: | 1. Department of Physics, Shaanxi Normal University, Xi’an 710062;2. Xi’an Institute of Optics &; Precision Mechanics, Chinese Academy of Science, Xi’an 710068 |
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| Abstract: | It was first discovered the res0nant absorpti0n redshift 0f molecules Rh 6 G' and sodiumfluorescence adsorbed on the surface 0f silver nanoparticle. The value 0f redshift were 27nm andl3nm,respectively. The shift for Ph6G appeared on1y in the case of adding the electrolytes Clai, Br-and I- in the system. But for molecule sodium fluorescence,the electrolytes had no effect on the shift. |
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| Keywords: | Silver nano-particles Dye molecule Absorption red shift |
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