A Bubble-Assisted Approach for Patterning Nanoscale Molecular Aggregates
A Bubble-Assisted Approach for Patterning Nanoscale Molecular Aggregates
复制标题
气泡辅助纳米级分子聚集体图案化方法
DOI：
10.1002/anie.202103765
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
Song Yanlin
中科院分区：
文献类型：
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作者：
Min Fanyi;Zhou Peng;Huang Zh;ong;Qiao Yali;Yu Changhui;Qu Zhiyuan;Shi Xiaosong;Li Zheng;Jiang Lang;Zhang Zhen;Yan Xuehai;Song Yanlin
我们展示了一种利用泡沫模板对功能性有机分子进行图案化的新方法，并实现了亚 100 nm 的分辨率。气泡辅助组装（BAA）过程由两个阶段组成，包括气泡演化和分子组装，分别由拉普拉斯压力和分子相互作用主导。使用 TPPS（内消旋四（4-磺基苯基）卟啉），我们通过一系列表征系统地研究了气泡系统中的模式和组装行为，这些表征在纳米级分辨率上表现出良好的均匀性。理论模拟表明，TPPS 的 J 聚集体有助于分子模式的有序构建。最后，我们提出了分子图案化方法的经验规则，即表面活性剂和功能分子在双组分系统中应具有相同类型的电荷。这种方法展示了以纳米级分辨率组装微/纳米功能器件分子图案的有希望的可行性。
We demonstrate a new approach to pattern functional organic molecules with a template of foams, and achieve a resolution of sub 100 nm. The bubble‐assisted assembly (BAA) process is consisted of two periods, including bubble evolution and molecular assembly, which are dominated by the Laplace pressure and molecular interactions, respectively. Using TPPS (meso‐tetra(4‐sulfonatophenyl) porphyrin), we systematically investigate the patterns and assembly behaviour in the bubble system with a series of characterizations, which show good uniformity in nanoscale resolution. Theoretical simulations reveal that TPPS's J‐aggregates contribute to the ordered construction of molecular patterns. Finally, we propose an empirical rule for molecular patterning approach, that the surfactant and functional molecules should have the same type of charge in a two‐component system. This approach exhibits promising feasibility to assemble molecular patterns at nanoscale resolution for micro/nano functional devices.