Plenty of Room at the Top: A Multi‐Scale Understanding of nm‐Resolution Polymer Patterning on 2D Materials
Plenty of Room at the Top: A Multi‐Scale Understanding of nm‐Resolution Polymer Patterning on 2D Materials
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顶部有足够的空间：对 2D 材料上纳米分辨率聚合物图案的多尺度理解
DOI：
10.1002/anie.202110517
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Claridge, Shelley A.
中科院分区：
文献类型：
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作者：
Shi, Anni;Villarreal, Terry A.;Singh, Anamika;Hayes, Tyler R.;Davis, Tyson C.;Brooks, Jacob T.;Claridge, Shelley A.
烷基链平行于基底的烷基二乙炔层状相代表了可扩展的 1 nm 分辨率界面图案化的直接方法。这种能力有可能对纳米级电子学、能量转换和生物材料设计产生重大影响。需要聚合来设置嵌入单层的 1 纳米功能模式，因此了解这些表面反应的结构-功能关系非常重要。使用扫描探针显微镜可以在单聚合物规模上观察某些单体的聚合反应。然而，对可有效表征的系统的实质性限制限制了实用性。在这里，使用一种新的多尺度方法，我们发现两种最广泛使用的商业二炔酸之间的聚合效率存在巨大的、以前未报告的差异。我们进一步确定了一个核心设计原则，可以最大限度地提高这些表面反应的聚合效率，生成一种也表现出更高聚合效率的新单体。
Lamellar phases of alkyldiacetylenes in which the alkyl chains lie parallel to the substrate represent a straightforward means for scalable 1‐nm‐resolution interfacial patterning. This capability has the potential for substantial impacts in nanoscale electronics, energy conversion, and biomaterials design. Polymerization is required to set the 1‐nm functional patterns embedded in the monolayer, making it important to understand structure–function relationships for these on‐surface reactions. Polymerization can be observed for certain monomers at the single‐polymer scale using scanning probe microscopy. However, substantial restrictions on the systems that can be effectively characterized have limited utility. Here, using a new multi‐scale approach, we identify a large, previously unreported difference in polymerization efficiency between the two most widely used commercial diynoic acids. We further identify a core design principle for maximizing polymerization efficiency in these on‐surface reactions, generating a new monomer that also exhibits enhanced polymerization efficiency.