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相关论文: Alane adsorption and dissociation on the Si(001) s…

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While the diffusion of hydrogen on silicon surfaces has been relatively well characterised both experimentally and theoretically, the diffusion around corners between surfaces, as will be found on nanowires and nanostructures, has not been…

材料科学 · 物理学 2014-05-19 Richard Smith , Veronika Brazdova , David R. Bowler

The adsorption of C60 on Si(111) has been studied by means of first-principles density functional calculations. A 2x2 adatom surface reconstruction was used to simulate the terraces of the 7x7 reconstruction. The structure of several…

The interaction of silicene with Si, C, H, O, Ti atoms along with H$_2$, H$_2$O and O$_2$ molecules are investigated and the induced functionalities thereof are analyzed using first principles density functional theory. Si adatom initially…

材料科学 · 物理学 2013-11-27 V. Ongun Özçelik , S. Ciraci

Relaxed atomic geometries and chemisorption energies have been calculated for the dissociative adsorption of molecular hydrogen on vicinal Si(001) surfaces. We employ density-functional theory, together with a pseudopotential for Si, and…

凝聚态物理 · 物理学 2009-10-31 E. Pehlke , P. Kratzer

Using first-principles calculations, we systematically study the adsorption behaviors of molecular CO on the Be (0001) surface. By calculating the potential energy surfaces, we find that CO molecularly adsorbs on the Be surface with small…

材料科学 · 物理学 2015-05-13 Shuang-Xi Wang , Yu Yang , Bo Sun , Rong-Wu Li , Shao-Jun Liu , Ping Zhang

The first principles density functional theory (DFT) calculations have been used to investigate the atomic and electronic properties of thiadiazole adsorption on the Si(001) surface. A (2x2) reconstructed clean substrate surface has been…

材料科学 · 物理学 2018-05-07 Cagil Kaderoglu

Electronic and atomic structures of the clean, and As and Te covered Si(211) surface are studied using pseudopotential density functional method. The clean surface is found to have (2 X 1) and rebonded (1 X 1) reconstructions as stable…

材料科学 · 物理学 2009-11-10 Prasenjit Sen , Inder P. Batra , S. Sivananthan , C. H. Grein , Nibir Dhar , S. Ciraci

Using first-principles density functional theory calculations in combination with the climbing-image nudged elastic band method, we investigated the adsorption, desorption, and diffusion of atomic chlorine and molecular chlorine on the Al…

材料科学 · 物理学 2025-09-10 Sanjay Nayak , Nikolai Andrianov , Thomas Gruhn , Joaquin Miranda

Alumina (Al$_{2}$O$_{3}$) is a key material for thin-film growth and heterogeneous catalysis, where the atomic surface structure critically impacts performance. Using noncontact atomic force microscopy (nc-AFM) combined with density…

Determining the structure of water adsorbed on solid surfaces is a notoriously difficult task, and pushes the limits of experimental and theoretical techniques. Here, we follow the evolution of water agglomerates on Fe3O4(001); a complex…

The transfer of charges, including electrons and holes, is a key step in heterogeneous catalysis, taking part in the reduction and oxidation of adsorbate species on catalyst surfaces. In plasmonic catalysis, electrons can transfer from…

材料科学 · 物理学 2024-08-13 Robin E. Moorby , Valentina Parravicini , Thomas-C. Jagau , Maristella Alessio

The dynamics following the photoexcitation of Na and Li atoms located on the surface of helium nanodroplets has been investigated in a joint experimental and theoretical study. Photoelectron spectroscopy has revealed that excitation of the…

原子与分子团簇 · 物理学 2017-08-23 Alberto Hernando , Manuel Barranco , Martí Pi , Evgeniy Loginov , Marina Langlet , Marcel Drabbels

The adsorption and dissociation of nitrogen molecule on Fe(111) surface is studied by density functional theory calculations. The simulation results show that the molecule needs to acquire parallel orientation with respect to the surface…

材料科学 · 物理学 2014-12-30 Myong-Song Ryang , Nam-Hyok Kim , Song-Jin Im

The FCC structure of Pd$\rm_{1-x}$Ag$\rm_{x}$ ($\rm{x}=$ 0.25, 0.50, 0.75) alloys is considered as a fuel cell component in this study. We have looked into its qualities as a component of a fuel cell to see whether it could be potentially…

材料科学 · 物理学 2022-04-07 S. S. Awulachew , K. N. Nigussa

In this work, we have studied theoretically the effects of gold adsorption on the Al(001) surface, using {\it ab initio} pseudo-potential method in the framework of the density functional theory. Having found the hollow sites at the Al(001)…

材料科学 · 物理学 2009-11-13 N. Zare Dehnavi , M. Payami

We have studied the adsorption of bisphenol-A-polycarbonate (BPA-PC) on the alpha-Al2O3(0001) surface using density-functional theory (DFT) with van der Waals (vdW) corrections. The BPA-PC polymer can be divided into its chemical fragments…

材料科学 · 物理学 2012-05-30 Janne Blomqvist , Petri Salo

We investigate the adsorption of a Ni monolayer on the $\beta$-SiC(001) surface by means of highly precise first-principles all-electron FLAPW calculations. Total energy calculations for the Si- and C-terminated surfaces reveal high Ni-SiC…

材料科学 · 物理学 2009-11-07 G. Profeta , A. Continenza , A. J. Freeman

We present a dry surface treatment combining atomic layer etching and deposition (ALE and ALD) to mitigate dielectric loss in fully fabricated superconducting quantum devices formed from aluminum thin films on silicon. The treatment,…

The adsorption/desorption of ethene (C2H4), also commonly known as ethylene, on Fe3O4(001) was studied under ultrahigh vacuum conditions using temperature programmed desorption (TPD), scanning tunneling microscopy, x-ray photoelectron…

Area-selective atomic layer deposition (AS-ALD) is an emerging technology in semiconductor manufacturing. However, accurately understanding inhibitor reactivity on surfaces remains challenging, particularly when the substrate is amorphous.…

材料科学 · 物理学 2025-10-21 Gijin Kim , Purun-hanul Kim , Suk Gyu Hahm , Myongjong Kwon , Byungha Park , Changho Hong , Seungwu Han