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相关论文: Atomic and electronic structure of graphene oxide/…

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Graphene oxide (GO) is regarded as one typical two-dimension structured oxygenated planar molecular material. Researchers across multiple disciplines have paid enormous attention to it due to unique physiochemical properties. However,…

材料科学 · 物理学 2019-05-21 Ling Sun

We report on the optical characterization of non-magnetic metal/ferromagnetic (Co$_{20}$Fe$_{60}$B$_{20}$)/MgO heterostructures and interfaces by using mid infrared spectroscopic ellipsometry at room temperature. We extracted for the…

介观与纳米尺度物理 · 物理学 2023-09-07 J. M. Flores-Camacho , B. Rana , R. E. Balderas-Navarro , A. Lastras-Martínez , Y. Otani , J. Puebla

In this paper, oxidation of Cu during physical sputtering deposition in a high purity and low pressure Ar atmosphere without introducing O2 gas flow was studied systemically. It was found that various flexible Cu-based films could be…

材料科学 · 物理学 2017-07-31 Jiangbin Su , Yang Liu , Meiping Jiang , Xianfang Zhu

Stochastic inhomogeneous oxidation is an inherent characteristic of copper (Cu), often hindering color tuning and bandgap engineering of oxides. Coherent control of the interface between metal and metal oxide remains unresolved. We…

We employ molecular dynamic simulations to study the reduction process of graphene-oxide (GO) in a chemically active environment enriched with hydrogen. We examine the concentration and pressure of hydrogen gas as a function of temperature…

材料科学 · 物理学 2016-09-28 Ramin M. Abolfath , Kyeongjae Cho

We have systematically investigated the effect of oxidation on the structural and electronic properties of graphene based on first-principles calculations. Energetically favorable atomic configurations and building blocks are identified,…

介观与纳米尺度物理 · 物理学 2009-08-24 Jia-An Yan , Lede Xian , M. Y. Chou

Cuprous (I) oxide (Cu_{2}O) based solar cells were fabricated with the use of the electrodeposition technique at nanometre scale, and the structural, morphological and electrical properties were investigated. The Cu_{2}O layers were…

材料科学 · 物理学 2016-11-22 Edward Rówiński , Mateusz Pławecki

The structure property of non-ideal Si/GaAs heterostructures that were integrated with the ultra-thin oxide (UO) tunneling interfacial layer has been systematically investigated. Si nanomembranes (NMs) were oxidized in different time…

We perform first-principles calculation to study the electronic structure of HgBa$_{2}$Ca$_{n-1}$Cu$_{n}$O$_{2n+2+x}$ copper oxides up to $n = 6$ for the undoped parent compound $(x = 0)$ and up to $n = 3$ for the doped compound $(x > 0)$…

强关联电子 · 物理学 2022-10-19 Alpin N. Tatan , Jun Haruyama , Osamu Sugino

Photoemission, from core levels and valence band, and low-energy electron diffraction (LEED) have been employed to investigate the electronic and structural properties of novel graphene-ferromagnetic (G-FM) systems,obtained by intercalation…

The interaction between graphene and metals represents an important issue for the large-area preparation of graphene, graphene transfer and the contact quality in graphene devices. We demonstrate a simple method for estimating and…

材料科学 · 物理学 2023-03-06 Sara D. Costa , Johan Ek Weis , Otakar Frank , Martin Kalbac

Graphene oxide (GO) flakes have been deposited to bridge the gap between two epitaxial graphene electrodes to produce all-graphene devices. Electrical measurements indicate the presence of Schottky barriers (SB) at the graphene/graphene…

介观与纳米尺度物理 · 物理学 2008-07-07 Xiaosong Wu , Mike Sprinkle , Xuebin Li , Fan Ming , Claire Berger , Walt A. de Heer

Integration of semiconducting transition metal dichalcogenides (TMDs) into functional optoelectronic circuitries requires an understanding of the charge transfer across the interface between the TMD and the contacting material. Here, we use…

With a view towards optimizing gas storage and separation in crystalline and disordered nanoporous carbon-based materials, we use ab initio density functional theory calculations to explore the effect of chemical functionalization on gas…

The two-dimensional electron gas (2DEG) found in KTaO3-based interfaces has garnered attention due to its remarkable electronic properties. In this study, we investigated the conducting system embedded at the Si3N4/Al//KTO(110)…

Energetic and geometric aspects of the permeation of low-Z atoms through graphene sheets are investigated. Energy barriers and deformations are calculated via density functional theory for the permeation of H, He, Li and Be atoms at several…

化学物理 · 物理学 2012-10-02 Stefan E. Huber , Andreas Mauracher , Michael Probst

Knowledge of the atomic geometry of a surface is a prerequisite for any detailed understanding of the surface's electronic structure and chemical properties. Previous studies have convincingly demonstrated that density functional theory…

材料科学 · 物理学 2007-05-23 C. Stampfl , M. Scheffler

Using ab-initio calculations within the framework of Density Functional Theory (DFT), atomic structures and electronic properties of MoS2/HfO2 interface are investigated. The impact of interfacial oxygen concentration on the MoS2/HfO2…

材料科学 · 物理学 2014-02-10 Santosh KC , Roberto C. Longo , Robert M. Wallace , Kyeongjae Cho

Low Work Function Tethers (LWT) is long conductors with a segment coated with a material that has loosely-bounded electrons. Unlike a standard bare tether equipped with an active electron emitter, LWTs close the electrical circuit (cathodic…

空间物理 · 物理学 2019-07-09 Samira Naghdi , Gonzalo Sanchez-Arriaga

Based on first principles calculation, the electronic properties of graphene on metal (Ti, Ca, Ni, Mn, Co, Fe, Cr, K) modified SiO2 substrate have been studied. The results of binding energies supported graphene indicate that the metal…

介观与纳米尺度物理 · 物理学 2012-03-02 L. Shen , F. Jiang , M. Xiao , R. Zhang , M. X. Yu , L. Miao , J. J. Jiang