High stability of silver substrate based on Ostwald ripening self-assembly process

温焕飞

doi:10.3969/j.issn.0438-1157.2012.07.045

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High stability of silver substrate based on Ostwald ripening self-assembly process

更新时间：2025-12-10

- High stability of silver substrate based on Ostwald ripening self-assembly process
- CIESC Journal Issue 7, Pages: 2298-2302(2012)
- 作者机构：
  
  中北大学仪器科学与动态测试教育部重点实验室和电子测试技术重点实验室
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2012.07.045
  CLC： 657.37
- Online First：05 July 2012，
  
  Published：05 July 2012
- 稿件说明：
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温焕飞. High stability of silver substrate based on Ostwald ripening self-assembly process[J]. CIESC Journal, 2012, (7): 2298-2302.
DOI：

温焕飞. High stability of silver substrate based on Ostwald ripening self-assembly process[J]. CIESC Journal, 2012, (7): 2298-2302. DOI： 10.3969/j.issn.0438-1157.2012.07.045.

摘要

利用Ostwald ripening自组装工艺对拉曼增强衬底进行处理，得到粒径和密度不同的银纳米颗粒拉曼增强衬底。用龙胆紫生物大分子作为探针，对其表面增强拉曼散射（SERS）和表面增强荧光（SEF）进行研究发现，拉曼和荧光光谱强度存在着相似的变化趋势，且随着自组装工艺时间的递增，强度的变化趋于稳定。研究结果表明：Ostwald ripening自组装工艺可以优化SERS和SEF增强效果及其稳定性，故其可为研制具有长期稳定性、低成本的基于SERS和SEF效应生物化学传感器件提供研究基础。

Abstract

By means of Ostwald ripening self-assembly process

Ag nanoparticles substrates of various densities and sizes were fabricated.In the investigation of surface enhanced Raman scattering (SERS)and surface enhancement fluorescence (SEF)using crystal violet (CV)as a probe molecule

it was found that Raman and luminescence intensity varied in parallel with the Ag nanoparticles size.With increasing time of self-assembly process

the changes of intensity trended to be stabilized.The results indicated that SERS and SEF could be optimized by Ostwald ripening self-assembly.The results obtained could provide reference when developing long-term stability and cost-effective bio-chemical sensors based on SERS and SEF.

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