荧光金纳米团簇与过渡金属二硫属化合物纳米片相互作用的光谱研究
Interaction of Fluorescent Gold Nanoclusters with Transition Metal Dichalcogenides Nanosheets: A Spectroscopic Study
摘要：
本文研究了几十个含金原子的纳米团簇与二维过渡金属二硫属化物纳米片的相互作用。以蛋白质分子为稳定剂，采用化学还原法合成了金纳米团簇。对二硫化钼（MoS $_2$）的过渡金属二硫属化物纳米片进行了化学剥离。不同的显微镜和光学光谱工具已被用于表征金纳米团簇和二维纳米片的MoS $_2$的物理性质。金纳米团簇在690 nm处具有荧光发射。然而，与过渡金属二硫属化物的相互作用大大降低了纳米团簇的荧光强度。用于理解在系统中的相互作用的光谱方法揭示了能量转移和荧光猝灭的动态性质的情况下。
英文摘要：
In this paper, the interaction of few tens of atoms containing gold nanoclusters with two dimensional nanosheets of transition metal dichalcogenides nanosheets has been explored. The gold nanoclusters have been synthesized using chemical reduction method in presence of protein molecules as stabilizing agent. The transition metal dichalcogenides nanosheets of molybdenum disulfide (MoS$_2$) has been chemically exfoliated. Different microscopic and optical spectroscopic tools have been used for characterizing the physical properties of the gold nanoclusters and the two dimensional nanosheets of MoS$_2$. The gold nanoclusters exhibit fluorescence emission at 690 nm. However, the interaction with transition metal dichalcogenides diminishes drastically the fluorescence intensity of the nanoclusters. The spectroscopic methods used for understanding the interaction in the system reveals the absence of energy transfer and dynamic nature of the fluorescence quenching.
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