局域表面等离子体共振辅助的金纳米棒/聚合物纳米复合材料的双光子聚合

doi:10.7517/j.issn.1674-0475.2014.03.267

影像科学与光化学 ›› 2014, Vol. 32 ›› Issue (3): 267-273.DOI: 10.7517/j.issn.1674-0475.2014.03.267

局域表面等离子体共振辅助的金纳米棒/聚合物纳米复合材料的双光子聚合

张金龙^1,3, 郑美玲¹, 金峰¹, 董贤子¹, 陈述^1,3, 赵震声¹, 段宣明^1,2

1. 中国科学院理化技术研究所, 北京 100190;
2. 中国科学院重庆绿色智能技术研究院, 重庆 400714;
3. 中国科学院大学, 北京 100049

收稿日期:2013-12-18 修回日期:2014-02-25 出版日期:2014-05-15 发布日期:2014-05-15
通讯作者: 段宣明
基金资助:
国家自然科学基金项目（91123032，61205194，51003113，61275171）、国家重点基础研究发展规划973项目（2010CB934103）、中国科学院与日本学术振兴共同研究项目（GJHZ1411）资助

Local Surface Plasmonic Resonance Enhancement of Gold Nanorod/Polymer Nanocomposites in Two-photon Photopolymerization

ZHANG Jinlong^1,3, ZHENG Meiling¹, JIN Feng¹, Dong Xianzi¹, CHEN Shu^1,3, ZHAO Zhensheng¹, DUAN Xuanming^1,2

1. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China;
2. Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, P. R. China;
3. University of Chinese Academy of Sciences, Beijing 100049, P. R. China

Received:2013-12-18 Revised:2014-02-25 Online:2014-05-15 Published:2014-05-15

摘要/Abstract

摘要：

本文研究了金纳米棒的局域表面等离子体共振效应在双光子聚合过程中的作用，即当激发光与金纳米棒表面等离子体共振波长相匹配时，会在金纳米棒表面产生很强的局域电磁场，从而引发双光子聚合。通过采用与金纳米棒表面等离子体共振波长相同的飞秒激光，在低于光刻胶聚合阈值的功率下照射含有金纳米棒的光刻胶，制备聚合物包覆金纳米棒的纳米复合材料。透射电子显微镜结果表明，当飞秒激光功率为0.6 W、光斑直径为1.6 cm、照射时间为0.3 s时，金纳米棒表面成功聚合上厚度为5 nm左右的聚合物。本研究在制备聚合物/金属纳米粒子方面提供了一种简单可行的方法，有望在纳米光子学、纳米传感器等新兴领域得到应用。

关键词: 金纳米棒, 飞秒激光, 双光子聚合, 金属/聚合物纳米复合材料

Abstract:

In this paper, we study the local surface plasmon resonance effect of gold nanorods in the two-photon polymerization process. As excitation light matches gold nanorods surface plasma resonance wavelength, the surface of gold nanorods has strong local electromagnetic fields which can cause two-photon polymerization. By employing a femtosecond laser, whose wavelength is the same as the gold nanorods longitudinal absorption peak wavelength in the photoresist, polymer/metal nanocomposites have been prepared. Transmission electron microscope (TEM) images show that the surface of the gold nanorods covers a polymer layer of 5 nm thickness when the femtosecond laser power is 0.6 W, spot diameter is 1.6 cm, irradiation time is 0.3 s. This study would provide a facile method for the preparation of polymer/metal nanoparticles, which might be applied in the emerging field, such as photonics and nanosensors.

Key words: gold nanorods, femtosecond laser, two-photon polymerization, metal/polymer nanocomposites

张金龙, 郑美玲, 金峰, 董贤子, 陈述, 赵震声, 段宣明. 局域表面等离子体共振辅助的金纳米棒/聚合物纳米复合材料的双光子聚合[J]. 影像科学与光化学, 2014, 32(3): 267-273.

ZHANG Jinlong, ZHENG Meiling, JIN Feng, Dong Xianzi, CHEN Shu, ZHAO Zhensheng, DUAN Xuanming. Local Surface Plasmonic Resonance Enhancement of Gold Nanorod/Polymer Nanocomposites in Two-photon Photopolymerization[J]. Imaging Science and Photochemistry, 2014, 32(3): 267-273.

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局域表面等离子体共振辅助的金纳米棒/聚合物纳米复合材料的双光子聚合

Local Surface Plasmonic Resonance Enhancement of Gold Nanorod/Polymer Nanocomposites in Two-photon Photopolymerization

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