期刊
SURFACE SCIENCE
卷 712, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.susc.2021.121877
关键词
STM on Au(111); DFT; 1; 4-bis(phenylethynyl)-2; 5-bis(ethoxy)benzene
资金
- Initiative and Networking Fund of the Helmholtz Association (HGF) through Nanonet Research School Funding [VH-KO-606]
- HGF-W2/W3 Programme [W2/W3-026]
- HGF-Excellence Network DCM-MatDNA [ExNet-0028-Phase2-3]
The electronic and geometrical structure of PEEB molecules adsorbed on an Au(111) surface was studied, showing physisorption with minimal distortion of the molecular geometry and negligible charge transfer between the molecule and substrate.
The electronic and geometrical structure of 1,4-bis(phenylethynyl)-2,5-bis(ethoxy)benzene (PEEB) molecules adsorbed on a Au(111) surface is investigated by low temperature scanning tunneling microscopy (STM) and scanning tunneling spectroscopy (STS) in conjunction with density-functional-based tight-binding (DFTB) simulations of the density of states and the interaction with the substrate. Our density functional theory calculations indicate that the PEEB molecule is physisorbed on the Au(111) substrate, with negligible distortion of the molecular geometry and charge transfer between molecule and substrate.
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