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Ultrafast spontaneous emission modulation of graphene quantum dots interacting with Ag nanoparticles in solution

机译：石墨烯量子点与溶液中的银纳米粒子相互作用的超快自发发射调制

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摘要

We investigated the strong interaction between graphene quantum dots and silver nanoparticles in solution using time-resolved photoluminescence techniques. In solution, the silver nanoparticles are surrounded by graphene quantum dots and interacted with graphene quantum dots through exciton-plasmon coupling. An ultrafast spontaneous emission process (lifetime 27 ps) was observed in such a mixed solution. This ultrafast lifetime corresponds to the emission rate exceeding 35 GHz, with the purcell enhancement by a factor of ～12. These experiment results pave the way for the realization of future high speed light sources applications.
机译：我们使用时间分辨光致发光技术研究了溶液中石墨烯量子点与银纳米颗粒之间的强相互作用。在溶液中，银纳米颗粒被石墨烯量子点包围，并通过激子-等离子体激元耦合与石墨烯量子点相互作用。在这种混合溶液中观察到超快的自发发射过程（寿命27 ps）。这种超快的寿命对应于超过35 GHz的发射速率，并且赛尔赛增强了约12倍。这些实验结果为实现未来的高速光源应用铺平了道路。

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  • 来源
    《Applied Physics Letters》 |2016年第2期|021905.1-021905.4|共4页
  • 作者

    Jianwei Zhao; Jian Lu; Liang Wang; Linfan Tian; Xingxia Deng; Lijun Tian; Dengyu Pan; Zhongyang Wang;

  • 作者单位

    Department of Physics, Shanghai University, Shanghai 200444, China ,Research Center of Quantum Macro-Phenomenon and Application, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China;

    Research Center of Quantum Macro-Phenomenon and Application, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China;

    School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China ,Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai 200444, China;

    Research Center of Quantum Macro-Phenomenon and Application, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China ,School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China;

    Research Center of Quantum Macro-Phenomenon and Application, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China ,School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China ,University of Chinese Academy of Sciences, Beijing 100049, China;

    Department of Physics, Shanghai University, Shanghai 200444, China;

    School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China;

    Research Center of Quantum Macro-Phenomenon and Application, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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  • 入库时间 2022-08-18 03:14:44

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