Searching the Hearts of Graphene-like Molecules for Simplicity, Sensitivity, and Logic
Searching the Hearts of Graphene-like Molecules for Simplicity, Sensitivity, and Logic
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DOI：
10.1021/jacs.5b06558
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发表时间：
2015-09-09
影响因子：
15
通讯作者：
Lambert, Colin J.
中科院分区：
文献类型：
--
作者：
Sangtarash, Sara;Huang, Cancan;Lambert, Colin J.
如果多环芳烃中心的量子干涉模式可以被分离和操纵，那么实现单分子电子学潜力的重要一步将被实现。在这里，我们从实验和理论上证明，一个简单的，无参数的，分析理论的干扰模式的HOMO-LUMO间隙（称为M-功能）的中点评估正确预测的电导率比芘，萘，蒽，蒽蒽，或甘菊环心脏的分子。M函数为识别具有相位相干逻辑函数的分子和提高分子尺度干涉仪的灵敏度提供了新的设计策略。
If quantum interference patterns in the hearts of polycyclic aromatic hydrocarbons could be isolated and manipulated, then a significant step toward realizing the potential of single-molecule electronics would be achieved. Here we demonstrate experimentally and theoretically that a simple, parameter-free, analytic theory of interference patterns evaluated at the mid-point of the HOMO-LUMO gap (referred to as M-functions) correctly predicts conductance ratios of molecules with pyrene, naphthalene, anthracene, anthanthrene, or azulene hearts. M-functions provide new design strategies for identifying molecules with phase-coherent logic functions and enhancing the sensitivity of molecular-scale interferometers.