Orientationally ordered C60 on p-sexiphenyl nanostripes on Ag(111)

被引：50

作者：

Chen, Wei ^{[1
]}

Zhang, Hongliang ^{[1
]}

Huang, Han ^{[2
]}

Chen, Lan ^{[2
]}

Wee, Andrew Thye Shen ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore

[2] Natl Univ Singapore, Nanosci & Nanotechnol Initat, Singapore 117542, Singapore

来源：

ACS NANO | 2008年 / 2卷 / 04期

关键词：

self-assembly; scanning tunneling microscopy; C-60; molecular orientation; monolayer;

D O I：

10.1021/nn800033z

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Long range orientational ordering within C-60 monolayers is observed on p-sexithiophene (6P) monolayer nanostripes on Ag(111) at 77 K. Low-temperature scanning tunneling microscopy studies reveal that the C-60-6P intermolecular interaction constrains all C-60 molecules to adsorb on their hexagons atop 6P molecules. The orientation-dependent bond-to-bond Coulomb interaction between charge deficient single bonds and double bonds with excess charge in neighboring C-60 Molecules results in the in-plane orientational ordering and contributes to the lowering of the total energy of the orientationally ordered C-60 islands.

引用

页码：693 / 698

页数：6

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