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Related papers: Pentacene multilayers on Ag(111) surface

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We investigate the vibrational properties of Pt- and Pd-phthalocyanine (PtPc and PdPc) molecules on Ag(111) with high resolution electron energy loss spectroscopy (HREELS). In the monolayer regime, both molecules exhibit long range order.…

Materials Science · Physics 2017-10-11 J. Sforzini , F. C. Bocquet , F. S. Tautz

The growth mechanism of pentacene film formation on SiO2 substrate was investigated with a combination of atomic force microscopy measurements and numerical modeling. In addition to the diffusion-limited aggregation (DLA) that has already…

Soft Condensed Matter · Physics 2009-11-11 Serkan Zorba , Yonathan Shapir , Yongli Gao

The structural and vibrational properties of metal-organic interfaces have been examined by means of infrared (IR) absorption spectroscopy and density functional theory (DFT) with an approach accounting for long-range dispersive…

Mesoscale and Nanoscale Physics · Physics 2018-08-29 N. L. Zaitsev , P. Jakob , R. Tonner

We present optical absorption spectra of mixed films of pentacene (PEN) and perfluoropentacene (PFP) grown on SiO2. We investigated the influence of intermolecular coupling between PEN and PFP on the optical spectra by analyzing samples…

Materials Science · Physics 2011-06-22 K. Broch , U. Heinemeyer , A. Hinderhofer , F. Anger , R. Scholz , A. Gerlach , F. Schreiber

We investigate the molecular acceptors 3,4,9,10-perylene-tetracarboxylic acid dianhydride (PTCDA), 2,3,5,6-tetra uoro-7,7,8,8-tetracyanoquinodimethane (F4TCNQ), and 4,5,9,10-pyrenetetraone (PYTON) on Ag(111) using densityfunctional theory.…

Materials Science · Physics 2015-06-17 Oliver T. Hofmann , Viktor Atalla , Nikolaj Moll , Patrick Rinke , Matthias Scheffler

The adsorption of atomic oxygen and its inclusion into subsurface sites on Ag(210) and Ag(410) surfaces have been investigated using density functional theory. We find that--in the absence of adatoms on the first metal layer--subsurface…

Condensed Matter · Physics 2009-11-10 A. Kokalj , N. Bonini , A. Dal Corso , S. de Gironcoli , S. Baroni

Pentacene has been used widely in organic devices, and the interface structure between pentacene and a substrate is known to significantly influence device performances. Here we demonstrate that molecular ordering of pentacene on graphene…

Mesoscale and Nanoscale Physics · Physics 2015-06-19 W. Jung , D. -H. Oh , I. Song , H. -C. Shin , S. J. Ahn , Y. Moon , C. -Y. Park , J. R. Ahn

Using density-functional theory we compute the energy barriers and attempt frequencies for surface diffusion of Ag on Ag(111) with different lattice constants, and on an Ag adsorbate monolayer on Pt(111). We find that the attempt frequency…

Condensed Matter · Physics 2009-10-31 C. Ratsch , M. Scheffler

We discuss Molecular Dynamics (MD) computer simulations of tetracosane (C24H50) monolayer physisorbed onto a graphite surface. The alkane molecules are simulated with explicit hydrogens, and the graphite substrate is represented as an…

Materials Science · Physics 2008-10-29 L. Firlej , B. Kuchta , M. W. Roth , M. J. Connolly , Carlos Wexler

Honeycomb bismuthene structures on Ag(111) were investigated using low-energy electron diffraction (LEED) and density functional theory. LEED I(V) analysis revealed that 0.5 monolayer (ML) of Bi forms an ultraflat honeycomb lattice with…

Materials Science · Physics 2026-02-11 Ziyong Zhang , Xiaobin Chen , Takeshi Nakagawa

Using scanning tunneling microscopy together with the first-principles density functional theory calculations we study structural properties of the Si(111)5x2-Au surface covered by Ag adatoms. The STM topography data show that a…

Mesoscale and Nanoscale Physics · Physics 2014-10-09 A. Stepniak , M. Krawiec , M. Jalochowski

The nature of the five-fold surface of Al(70)Pd(21)Mn(9) has been investigated using scanning tunneling microscopy. From high resolution images of the terraces, a tiling of the surface has been constructed using pentagonal prototiles. This…

Materials Science · Physics 2009-11-07 J. Ledieu , R. McGrath , R. D. Diehl , T. A. Lograsso , D. W. Delaney , Z. Papadopolos , G. Kasner

The optical properties of pentacene (PEN) and perfluoropentacene(PFP) thin films on various SiO2 substrates were studied using variable angle spectroscopic ellipsometry. Structural characterization was performed using X-ray reflectivity and…

Van der Waals (vdW) heterostructures, which are produced by the precise assemblies of varieties of two-dimensional (2D) materials, have demonstrated many novel properties and functionalities. Here we report a nano-plasmonic study of vdW…

Mesoscale and Nanoscale Physics · Physics 2023-01-30 Fengrui Hu , Minsung Kim , Y. Zhang , Yilong Luan , Kai-Ming Ho , Yi Shi , Cai-Zhuang Wang , Xinran Wang , Zhe Fei

Stacked van der Waals heterostructures based on transition metal dichalcogenides (TMDs) exhibit a rich variety of exotic interfacial phenomena. Substituting one component with an organic semiconductor (OSC) enables the design of hybrid…

The reconstruction of an Ag monolayer on Ag/Pt(111) is analyzed theoretically, employing a vertically extended Frenkel-Kontorova model whose parameters are derived from density functional theory. Energy minimization is carried out using…

Materials Science · Physics 2013-05-29 Raghani Pushpa , Javier Rodriguez-Laguna , Silvia N. Santalla

The studies of electronic and magnetic properties of V-Pc molecule adsorbed onto Au(111) surface are based on ab-initio calculations in the framework of density functional theory. We compute adsorption energies, investigate interaction…

Materials Science · Physics 2021-03-30 Manel Mabrouk , Jacek A. Majewski

The influence of solubilizing substitutional groups on the electronic and optical properties of functionalized pentacene molecules and crystals have been investigated. Density functional theory is used to calculate the electronic and…

Materials Science · Physics 2013-11-15 Y. Saeed , K. Zhao , N. Singh , R. Li , J. E. Anthony , A. Amassian , U. Schwingenschlögl

In the present work, first-principles calculations based on the density functional theory (DFT), GW approximation and Bethe-Salpeter equation (BSE) are performed to study the electronic and optical properties of penta-graphene (PG)…

Computational Physics · Physics 2024-01-12 Babak Minaie , Seyed A. Ketabi , José M. De Sousa

Pristine, single-crystalline graphene displays a unique collection of remarkable electronic properties that arise from its two-dimensional, honeycomb structure. Using in-situ low-energy electron microscopy, we show that when deposited on…