Core-shell gold J-aggregate nanoparticles for highly efficient strong coupling applications
Core-shell gold J-aggregate nanoparticles for highly efficient strong coupling applications
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DOI：
10.1063/1.3456523
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发表时间：
2010-06-21
影响因子：
4
通讯作者：
Stadelmann, Pierre
中科院分区：
文献类型：
--
作者：
Lekeufack, Diane Djoumessi;Brioude, Arnaud;Stadelmann, Pierre
我们已经开发了一种简单的合成路线，以制备基于J-聚集体分子包围的金纳米颗粒（NPs）的核-壳系统。该合成允许在室温下用5，5 ′，6，6 ′-四氯-1-1（′）-二乙基-3，3 ′-二（4-磺丁基）-苯并咪唑羰花青（TDBC）直接和有效地涂覆预处理的柠檬酸盐稳定的金NP，而在合成过程中无需补充添加盐和碱。由于金颗粒的尺寸是可调的，因此实现了有机组分的电子跃迁（TDBC）与金纳米颗粒的等离子体激元模式之间的强耦合的精确优化，对应于220 meV的拉比能量，这是在这样的系统中尚未获得的值。(C)2010年美国物理学会。[doi：10.1063/1.3456523]
We have developed a straightforward synthetic route to prepare core-shell systems based on gold nanoparticles (NPs) surrounded with J-aggregates molecules. This synthesis allows the direct and efficient coating, at room temperature, of pretreated citrate-stabilized gold NPs with 5, 5', 6, 6'-tetrachloro-1-1(')-diethyl-3, 3'-di (4-sulfobutyl)-benzimidazolocarbocyanine (TDBC), without supplementary adding of salts and bases during the synthesis. As the size of gold particle is tunable, the precise optimization of the strong coupling between the electronic transitions of organic components (TDBC) and the plasmon modes of the gold NPs is achieved corresponding to a Rabi energy of 220 meV, a value not yet obtained in such a system. (C) 2010 American Institute of Physics. [doi:10.1063/1.3456523]