Understanding Structure and Bonding of Multilayered Metal-Organic Nanostructures.
Understanding Structure and Bonding of Multilayered Metal-Organic Nanostructures.
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DOI:
10.1021/jp309943k
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发表时间:
2013-02-14
影响因子:
3.7
通讯作者:
Zojer, Egbert
中科院分区:
文献类型:
--
作者:
Egger, David A.;Ruiz, Victor G.;Said, Wissam A.;Bucko, Tomas;Tkatchenko, Alexandre;Zojer, Egbert
For organic and hybrid electronic devices, the physicochemical properties of the contained interfaces play a dominant role. To disentangle the various interactions occurring at such heterointerfaces, we here model a complex, yet prototypical, three-component system consisting of a Cu–phthalocyanine (CuPc) film on a 3,4,9,10-perylene-tetracarboxylic-dianhydride (PTCDA) monolayer adsorbed on Ag(111). The two encountered interfaces are similar, as in both cases there would be no bonding without van der Waals interactions. Still, they are also distinctly different, as only at the Ag(111)–PTCDA interface do massive charge-rearrangements occur. Using recently developed theoretical tools, we show that it has become possible to provide atomistic insight into the physical and chemical processes in this comparatively complex nanostructure distinguishing between interactions involving local rearrangements of the charge density and long-range van der Waals attraction.
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