Tailoring molecular self-organization by chemical synthesis:: Hexaphenylbenzene, hexa-peri-hexabenzocoronene, and derivatives on Cu(111) -: art. no. 165428
Tailoring molecular self-organization by chemical synthesis:: Hexaphenylbenzene, hexa-peri-hexabenzocoronene, and derivatives on Cu(111) -: art. no. 165428
复制标题
DOI：
10.1103/physrevb.71.165428
复制
发表时间：
2005-04-01
影响因子：
3.7
通讯作者：
Rieder, KH
中科院分区：
文献类型：
--
作者：
Gross, L;Moresco, F;Rieder, KH
采用低温扫描隧道显微镜（LT-STM）研究了四种不同的碳氢化合物（HPB和HBC）在Cu（111）表面的亚单层覆盖.所有分子均呈相称的单层结构，但结构和生长模式存在显着差异。我们发现，当分子间相互作用相对于分子-衬底相互作用变得更强时，长程有序和无缺陷畴的尺寸增加。此外，我们可以分配吸附和自排序的性质，以不同的化学基团的分子。
A low-temperature scanning tunneling microscopy (LT-STM) study of four slightly different hydrocarbons based on hexaphenylbenzene (HPB) and hexa-peri-hexabenzocoronene (HBC) on the Cu(111) surface at submonolayer coverage is presented. All molecules show a commensurate monolayer structure, with significant differences in structure and growth mode. We find that the long range order and the size of defect free domains increase when the intermolecular interaction becomes stronger with respect to the molecule-substrate interaction. Moreover, we can assign adsorption and self-ordering properties to the different chemical groups within the molecules.