Department of Chemical Physics, The Weizmann Institute of Science, Rehovot 76100, Israel.
Beilstein J Nanotechnol. 2012;3:629-36. doi: 10.3762/bjnano.3.72. Epub 2012 Sep 6.
We studied the photoluminescence and time-resolved photoluminescence from self-assembled bilayers of donor and acceptor nanoparticles (NPs) adsorbed on a quartz substrate through organic linkers. Charge and energy transfer processes within the assemblies were investigated as a function of the length of the dithiolated linker (DT) between the donors and acceptors. We found an unusual linker-length-dependency in the emission of the donors. This dependency may be explained by charge and energy transfer processes in the vertical direction (from the donors to the acceptors) that depend strongly on charge transfer processes occurring in the horizontal plane (within the monolayer of the acceptor), namely, parallel to the substrate.
我们通过有机链接剂研究了通过有机链接剂吸附在石英基底上的施主和受主纳米粒子（NPs）自组装双层的光致发光和时间分辨光致发光。作为链接剂（DT）长度的函数，研究了组件内的电荷和能量转移过程。我们在供体的发射中发现了一种不寻常的链接剂长度依赖性。这种依赖性可以通过垂直方向（从供体到受体）的电荷和能量转移过程来解释，这种依赖性强烈依赖于发生在水平面（受体的单层内）内的电荷转移过程，即与基底平行。
