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We study the significance and characteristics of interfacial dynamical charge transfer at metal-organic interfaces for the organic semiconductor model system 1,4,5,8-naphthalene-tetracarboxylic dianhydride (NTCDA) on Ag(111) quantitatively.…

Chemical Physics · Physics 2016-05-26 Phil Rosenow , Peter Jakob , Ralf Tonner

We study the dipole layer formed at metal-organic interfaces by means of first-principles calculations. Interface dipoles are monitored by calculating the work function change of Au, Ag, Al, Mg and Ca surfaces upon adsorption of a monolayer…

Materials Science · Physics 2010-03-05 Paul C. Rusu , Gianluca Giovannetti , Christ Weijtens , Reinder Coehoorn , Geert Brocks

The mechanism of adsorption of the 1,4,5,8-naphthalene-tetracarboxylic-dianhydride (NTCDA) molecule on the Ag(110) surface is elucidated on the basis of extensive density functional theory calculations. This molecule, together with its…

Materials Science · Physics 2007-05-23 Audrius Alkauskas , Alexis Baratoff , C. Bruder

The adsorption of pentacene on Cu(221), Cu(511) and Cu(911) is investigated using density functional theory (DFT) with the self-consistent inclusion of van der Waals (vdW) interactions. Cu(211) is a vicinal of Cu(111) while Cu(511) and…

Materials Science · Physics 2016-09-21 Jeronimo Matos , Abdelkader Kara

The properties of Shockley-type interface states between $\pi$-conjugated organic molecular layers and metal surfaces are investigated by time-resolved two-photon photoemission experiments and density functional theory. For perylene- and…

Other Condensed Matter · Physics 2015-05-28 M. Marks , N. L. Zaitsev , B. Schmidt , C. H. Schwalb , A. Schöll , I. A. Nechaev , P. M. Echenique , E. V. Chulkov , U. Höfer

We employ dispersion-corrected density-functional theory to study the adsorption of tetrapyrrole 2H-porphine (2H-P) at Cu(111) and Ag(111). Various contributions to adsorbate-substrate and adsorbate-adsorbate interactions are systematically…

Chemical Physics · Physics 2016-09-05 Moritz Müller , Katharina Diller , Reinhard J. Maurer , Karsten Reuter

Molecular adsorption at organic/metal interfaces depends on a range of mechanisms: covalent bonds, charge transfer, Pauli repulsion and van der Waals (vdW) interactions shape the potential energy surface (PES), making it key to…

Computational Physics · Physics 2020-09-29 Lukas Hörmann , Andreas Jeindl , Oliver T. Hofmann

The formation of interface dipoles in self-assembled monolayers (SAMs) of --CH$_3$ and --CF$_3$ terminated short-chain alkanethiolates on Ag(111) is studied by means of density functional theory calculations. The interface dipoles are…

Materials Science · Physics 2011-11-09 Paul C. Rusu , Gianluca Giovannetti , Geert Brocks

The theoretical modelling of metal-organic interfaces represents a formidable challenge, especially in consideration of the delicate balance of various interaction mechanisms and the large size of involved molecular species. In the present…

Materials Science · Physics 2024-01-30 P. Jakob , N. L. Zaitsev , A. Namgalies , R. Tonner , I. A. Nechaev , F. S. Tautz , U. Höfer , D. Sanchez-Portal

We have performed a thorough computational study to assess the accuracy of density functional theory (DFT) methods in describing the interactions of CO2 with model alkali-earth-metal (AEM, Ca and Li) decorated carbon structures, namely…

Materials Science · Physics 2013-01-15 Claudio Cazorla , Stephen A. Shevlin

Functionalized polcyclic aromatic hydrocarbons (PAHs) are an interesting class of molecules in which the electronic state of the graphene-like hydrocarbon part is tuned by the functional group. Searching for new types of donor and acceptor…

This work presents a new class of hybrid density functional theory (DFT) approximations, incorporating nonlocal exact exchange in predefined states such as core atomic orbitals (AOs). These projected hybrid density functionals are a…

Chemical Physics · Physics 2023-05-16 Benjamin G. Janesko

As emphasized in a recent review article [Chem. Rev. 122, 14180 (2022)], organic solar cell (OSC) photoconversion efficiency has been rapidly evolving with results increasingly comparable to those of traditional inorganic solar cells.…

Chemical Physics · Physics 2023-06-01 Taouali W , Alimi K , Nangraj A. S. , Casida M. E

Organic dopants are frequently used to surface-dope inorganic semiconductors. The resulted hybrid inorganic-organic materials have a crucial role in advanced functional materials and semiconductor devices. In this article, we study charge…

Materials Science · Physics 2017-08-01 Xiaoming Wang , Keivan Esfarjani , Mona Zebarjadi

Using first-principles calculations based on density-functional theory (DFT) we investigated the effects of the van der Waals (vdW) interactions on the structural and electronic properties of anthracene and pentacene adsorbed on the Ag(111)…

Materials Science · Physics 2017-03-16 Juliana M. Morbec , Peter Kratzer

First-principles simulations of electronic properties of hybrid inorganic/organic interfaces are challenging, as common density-functional theory (DFT) approximations target specific material classes like bulk semiconductors or gas-phase…

Materials Science · Physics 2023-02-13 Jannis Krumland , Caterina Cocchi

We present large-scale density-functional theory (DFT) calculations and temperature programmed desorption measurements to characterize the structural, energetic and vibrational properties of the functionalized molecular switch…

Organic semiconductors interfaced with spin-orbit coupled materials offer a rich playground for fundamental studies of controlling spin dynamics in spintronic devices. The adsorbate-surface interactions at such interfaces play a key role in…

Materials Science · Physics 2025-04-09 Anubhab Chakraborty , Torsten Fritz , Percy Zahl , Oliver L. A. Monti

We present a comparative study of metal-organic interface properties obtained from dispersion corrected density functional theory calculations based on two different approaches: the periodic slab supercell technique and cluster models with…

Electron transfer (ET) in molecular donor-acceptor dye systems is crucial for charge transport in organic semiconductors. Classically, ET rates should decrease with increasing donor-acceptor distance while the microscopic mechanism is more…

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