论文标题
结构秩序问题：Au-Nanoclusters的自组装微晶中的电子耦合增强
Structural order matters: Enhanced electronic coupling in self assembled micro-crystals of Au-nanoclusters
论文作者
论文摘要
我们报告了一种简单且广泛的方法，用于将原子精确的AU32（NBU3P）12cl8纳米簇的自由组装成微晶。这可以确定此类组件中远程顺序产生的紧急光电特性。与玻璃状，多晶合体中的相同纳米簇相比，我们发现电导率和电荷载体迁移率增加了100倍，以及其他光学转变。我们表明，这些影响是由于消失的能量障碍和大幅度降低的活化能，以在高度有序的组件中充电传输。在原子上精确的金纳米群的自组装上层建筑上的第一个结构传输相关性铺平了具有新型集体光电特性的功能材料的道路。
We report an easy and broadly applicable method for the controlled self-assembly of atomically precise Au32(nBu3P)12Cl8 nanoclusters into micro-crystals. This enables the determination of emergent optoelectronic properties resulting from long-range order in such assemblies. Compared to the same nanoclusters in glassy, polycrystalline ensembles, we find a 100-fold increase in the electric conductivity and charge carrier mobility as well as additional optical transitions. We show that these effects are due to a vanishing energetic disorder and a drastically reduced activation energy to charge transport in the highly ordered assemblies. This first structure-transport correlation on self-assembled superstructures of atomically precise gold nanoclusters paves the way towards functional materials with novel collective optoelectronic properties.
