| Investigation of fluorescence resonance energy transfer ultrafast dynamics in electrostatically repulsed and attracted exciton-plasmon systems |
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| 作者姓名： | 屠宏宇 程基超 潘根才 韩露 段彬 王海宇 陈岐岱 徐抒平 戴振文 潘凌云 |
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| 作者单位： | State Key Laboratory of Superhard Materials;State Key Laboratory on Integrated Optoelectronics;State Key Laboratory of Supramolecular Structure and Materials |
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| 基金项目： | Project supported by the National Natural Science Foundation of China(Grant Nos.10904049 and 61575079);the Science and Technology Development Program of Jilin Province;China(Grant No.20180101230JC);the Fundamental Research Funds for the Central Universities(Grant No.JCKYQKJC45);China Postdoctoral Science Foundation(Grant No.201003537);the Scientific Research Foundation for the Returned Overseas Chinese Scholars,the Ministry of Education;China。 |
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| 摘 要： | Following the gradual maturation of synthetic techniques for nanomaterials,exciton-plasmon composites have become a research hot-spot due to their controllable energy transfer through electromagnetic fields on the nanoscale.However,most reports ignore fluorescence resonance energy transfer(FRET)under electrostatic repulsion conditions.In this study,the FRET process is investigated in both electrostatic attraction and electrostatic repulsion systems.By changing the Au:quantum dot ratio,local-field induced FRET can be observed with a lifetime of ns and a fast component of hundreds of ps.These results indicate that the intrinsic transfer process can only elucidated by considering both steady and transient state information.
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| 关 键 词： | fluorescence resonance energy transfer(FRET) quantum dots excitons-plasmon composites |
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