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An optical fiber SERS sensor based on GO/AgNPs/rGO sandwich structure hybrid films

机译：基于GO / AGNPS / RGO三明治结构混合膜的光纤SERS传感器

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摘要

In this work, we present a novel optical fiber SERS (OF-SERS) sensor based on a sandwich structure of GO/AgNPs/rGO. Rhodamine 6G (R6G) was selected as the probe molecule to compare the SERS ability of different films composed of the bare optical fiber, GO, AgNPs, rGO/AgNPs, GO/AgNPs and GO/AgNPs/rGO. Raman spectra, scanning electron microscopy (SEM), atomic force microscopy (AFM), energy dispersive spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS) were performed to characterize the sandwich structure hybrid films. Besides, the stability of GO/AgNPs and GO/AgNPs/rGO was compared on the optical fiber end face. The OF-SERS sensor based GO/AgNPs/rGO hybrid films had stable SERS performance even when exposed to ambient conditions for a prolonged time of 30 days. This work may provide a new strategy for an efficient stable OF-SERS sensor due to its simplicity, low-cost and long-term stability.
机译：在这项工作中，我们提出了一种基于Go / Agnps / Rgo的夹层结构的新型光纤SERS（SERS）传感器。 选择罗丹明6G（R6G）作为探针分子，以比较由裸光纤，GO，AgNP，RGO / AGNP，GO / AGNP和GO / AGNP / RGO组成的不同薄膜的SERS能力。 RAMAN光谱，扫描电子显微镜（SEM），原子力显微镜（AFM），能量分散光谱（EDS）和X射线光电子谱（XPS）表征夹层结构杂交膜。 此外，在光纤端面上比较了GO / AGNP和GO / AGNPS / RGO的稳定性。 即使在30天的延长时间暴露于环境条件下，SERS基于传感器的GO / AGNPS / RGO混合膜也具有稳定的SERS性能。 由于其简单性，低成本和长期稳定性，这项工作可以为高效稳定的SERS传感器提供新的策略。

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  • 来源
    《RSC Advances》 |2016年第85期|共7页
  • 作者

    Gao S. S.; Shang S. B.; Liu X. Y.; Li Z.; Sheng Y. Q.; Zhang C.; Yang C.; Qiu H. W.; Huo Y. Y.; Jiang S. Z.;

  • 作者单位

    Shandong Normal Univ Sch Phys &

    Elect Jinan 250000 Peoples R China;

    Shanghai Triumph Energy Conservat Engn Co Ltd Shanghai Peoples R China;

    Shandong Normal Univ Sch Phys &

    Elect Jinan 250000 Peoples R China;

    Shandong Normal Univ Sch Phys &

    Elect Jinan 250000 Peoples R China;

    Shandong Normal Univ Sch Phys &

    Elect Jinan 250000 Peoples R China;

    Shandong Normal Univ Sch Phys &

    Elect Jinan 250000 Peoples R China;

    Shandong Normal Univ Sch Phys &

    Elect Jinan 250000 Peoples R China;

    Shandong Normal Univ Sch Phys &

    Elect Jinan 250000 Peoples R China;

    Shandong Normal Univ Sch Phys &

    Elect Jinan 250000 Peoples R China;

    Shandong Normal Univ Sch Phys &

    Elect Jinan 250000 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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