论文标题
增强了由量子点天线辅助的蛋白质色素配合物的轻度收获
Enhanced light-harvesting of protein-pigment complexes assisted by a quantum dot antenna
论文作者
论文摘要
我们预测当组装到量子点（QD）天线时，蛋白质色素复合物的光收集增强。我们的典型纳米组装设置由托有8个型肉芽果叶片（BCHL）A染料的Fenna-Mattews-Olson系统组成，以及近红外发射CDSE $ _X $ _X $ _X $ _X $ _ {（1-x）} $/ZnS alloy-core alloy-core alloy-core/shell nanocorestal。 BCHL A在绿色和橙红色的带中有两个宽阔的吸收窗口，正是大多数阳光能量所在。所选的QD能够在更宽带中有效地收集阳光，并通过（非辐射的）Förster共振能量传递机理汇入其能量，以嵌入蛋白质中的染料。借助QD和染料之间的耦合，在BCHL a的吸收窗口较差的窗口中，纳米组装吸收得到了显着改善。
We predict the enhanced light harvesting of a protein-pigment complex when assembled to a quantum dot (QD) antenna. Our prototypical nanoassembly setup is composed of a Fenna-Mattews-Olson system hosting 8 Bacteriochlorophyll (BChl) a dyes, and a near-infrared emitting CdSe$_x$Te$_{(1-x)}$/ZnS alloy-core/shell nanocrystal. BChl a has two wide windows of poor absorption in the green and orange-red bands, precisely where most of the sunlight energy lies. The selected QD is able to collect sunlight efficiently in a broader band and funnel its energy by a (non-radiative) Förster resonance energy transfer mechanism to the dyes embedded in the protein. By virtue of the coupling between the QD and the dyes, the nanoassembly absorption is dramatically improved in the poor absorption window of the BChl a.
