Structural transitions in different monolayers of cobalt phthalocyanine film grown on Bi(1 1 1)
Structural transitions in different monolayers of cobalt phthalocyanine film grown on Bi(1 1 1)
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Bi(1 1 1) 上生长的钴酞菁薄膜不同单层的结构转变
DOI：
10.1088/0022-3727/49/1/015307
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Jun-Zhong Wang
中科院分区：
文献类型：
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作者：
Min-Long Tao;Yu-Bing TU;Kai Sun;Yao Zhang;Xin Zhang;Zhao-Bing Li;Jun-Zhong Wang
用低温扫描隧道显微镜（STM）研究了生长在Bi（111）表面的酞菁钴（CoPc）薄膜从亚单层到第三层的结构演化.在薄膜外延生长过程中发现了两个关键的转变：一个是单层结构中从锯齿状链向线性二聚链的结构转变;另一个是多层结构中从平躺构型向直立构型的分子取向转变。这些结果有助于理解过渡金属酞菁薄膜在半金属表面的生长机理。
The structural evolution of cobalt phthalocyanine (CoPc) thin films grown on a Bi (1 1 1) surface from the sub-monolayer to the third layer has been investigated with low-temperature scanning tunneling microscopy (STM). Two crucial transitions have been identified during the film epitaxial growth: one is the structural transition from zigzag chains to linear dimerized chains in the monolayer regime; the other is the molecular orientational transition from a flat-lying to a standing-up configuration in the multilayer regime. These results are helpful in understanding the growth mechanism of transition-metal phthalocyanine films on semi-metallic surfaces.