高等学校化学学报

高等学校化学学报 ›› 2012, Vol. 33 ›› Issue (11): 2368.doi: 10.7503/cjcu20120548

• 研究论文: 无机化学 • 上一篇    下一篇

纳米银碗阵列结构的高效制备及荧光增强性能

许苗军, 陈天然, 李斌   

  1. 东北林业大学理学院化学化工系, 哈尔滨 150040
  • 收稿日期:2012-06-07 出版日期:2012-11-10 发布日期:2012-10-15
  • 通讯作者: 许苗军,男,博士,副教授,主要从事纳米结构与材料性能研究.E-mail:xumiaojun@126.com E-mail:xumiaojun@126.com
  • 基金资助:

    中央高校基本科研业务费专项资金(批准号: DL12CB07)资助.

Effective Fabrication of Silver Nanobowl Array Structure and Its Enhanced Fluorescence Property

XU Miao-Jun, CHEN Tian-Ran, LI Bin   

  1. Department of Chemistry and Chemical Engineering, College of Science, Northeast Forestry University, Harbin 150040, China
  • Received:2012-06-07 Online:2012-11-10 Published:2012-10-15

PDF (PC)

被引次数

8

摘要：

报道了一种以自组装单层聚苯乙烯纳米微球阵列为模板, 通过真空热蒸镀银纳米粒子高效制备大面积银碗阵列结构的方法. 测试结果表明, 制得的银碗阵列结构为微纳米复合分级结构, 银碗由平均粒径为10 nm的银纳米粒子组成. 紫外-可见吸收光谱测试结果表明, 银碗阵列结构表面具有银纳米粒子的局域表面等离子体共振吸收峰. 将荧光分子N,N'-二正丁基喹吖啶酮(DBQA)分别蒸镀到普通银膜和银碗阵列结构表面并测试了荧光光谱. 结果表明, 在银碗阵列结构表面的荧光分子强度得到了显著增强, 说明制备的银碗阵列结构是优良的荧光增强基底.

关键词: 银碗阵列, 自组装, 银纳米粒子, 分级结构, 荧光增强基底

Abstract:

Large-area silver nanobowl array was fabricated via thermal evaporation of silver on the self-assembled monolayer of polystyrene nanospheres. The obtained nanobowl array is a micro/nano composite hierarchical structure, composed of silver nanoparticles with average diameter size of ca. 10 nm. The optical absorption spectra indicate that surface plasmon resonance of silver nanoparticles exists on the nanobowl array. Furthermore, the silver nanobowl array and the flat silver film were served as the enhanced fluorescence substrate and the fluorescence spectra of N,N'-di(n-butyl)quinacridone(DBQA) were measured. Compared with the fluorescence intensity on the flat silver film surface, the fluorescence intensity on the silver nanobowl array is greatly enhanced and the silver nanobowl array is an excellent enhanced fluorescence substrate.

Key words: Silver nanobowl array, Self-assemble, Silver nanoparticles, Hierarchical structure, Enhanced fluorescence substrate

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