Packing Sierpiński Triangles into Two-Dimensional Crystals
Packing Sierpiński Triangles into Two-Dimensional Crystals
复制标题
将 SierpiÅski 三角形封装成二维晶体
DOI：
10.1021/jacs.0c08979
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发表时间：
2020
影响因子：
15
通讯作者：
Wang Yongfeng
中科院分区：
文献类型：
--
作者：
Zhang Yajie;Zhang Xue;Li Yaru;Zhao Shuting;Hou Shimin;Wu Kai;Wang Yongfeng
Fractals are of fundamental importance in science and technology. Theoretical simulations indicate that Sierpiński triangles (STs) possess specific optical and electronic properties. To study their properties and uncover their potential applications, it is necessary to pack STs into large-scale two-dimensional crystalline structures. Here, a series of ordered structures consisting of ST units are successfully constructed on gold surfaces through coordination between 1,3-bis(4-pyridyl) benzene molecules and Fe atoms. Crystals of STs are characterized by scanning tunneling microscopy.K-map analysis explains the structural formation mechanism, which is further verified by density functional theory calculations. The molecular free diffusion and nice structure matching between STs and gold surfaces play important roles in the formation of crystals of STs.
