| 金属纳米银粒子复合膜吸收红移和展宽现象 |
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| 引用本文： | 李贵安,苗润才.金属纳米银粒子复合膜吸收红移和展宽现象[J].陕西师范大学学报,1999,27(4):47-50. |
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| 作者姓名： | 李贵安 苗润才 |
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| 作者单位： | 陕西师范大学物理学系!陕西西安710062 |
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| 基金项目： | 陕西省自然科学基金!(95SL01) |
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| 摘 要： | 通过溶胶凝胶法(Sol-Geltechnique),从银胶中获得纳米银粒子,将金属纳米银粒子掺入明胶基质中,从而制备出金属纳米银粒子复合膜.电镜(TEM)测量结果表明,所掺入的银粒子确属纳米量级.与纳米银粒子溶胶相比,复合膜中银颗粒尺寸分布变宽,颗粒平均尺寸增大.实验测试了复合膜的紫外可见光范围的光吸收性质,发现其存在吸收谱展宽和吸收峰红移现象,并用量子阱理论给予解释.
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| 关 键 词： | 纳米银粒子 复合膜 吸收光谱 吸收红移 展宽 |
| 文章编号： | 1001-3857(1999)03-0047-04 |
| 修稿时间： | 1999-04-14 |
Redshift and expansion of metal silver nano-particles composite film |
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| LI Gui an,MIAO Run cai.Redshift and expansion of metal silver nano-particles composite film[J].Journal of Shaanxi Normal University: Nat Sci Ed,1999,27(4):47-50. |
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| Authors: | LI Gui an MIAO Run cai |
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| Abstract: | The silver nano particles composite film by the means of Sol Gel technique is prepared, and its optical absorption spectrum with UV visible spectrophotometer is measured. The redshift and expansion of composite films are discovered compared with silver nano particles colloidal solution, and it is studied with quantum trap theory completely. |
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| Keywords: | silver nano particles composite film optical absorption spectrum absorption redshift expansion |
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