نتایج جستجو برای: xps

تعداد نتایج: 6964  

2002
Yongqi Fu Ngoi Kok Ann Bryan

Optical properties (transmission and refractive index) and chemical structure (XPS) of diamond-like coating (DLC) film before and after focused ion beam milling (FIBM) process, were investigated in this paper. It is shown by our FIBM experiment that influence of FIBM on Optical properties and chemical structure of the DLC film is not apparent, especially in near-infra region. The film still ca...

2004
Qi-Hui Wu A. Thissen W. Jaegermann Meilin Liu

The thermal properties of vanadium pentoxide (V2O5) thin films have been studied by X-ray photoelectron spectroscopy (XPS) and ultraviolet photoelectron spectroscopy (UPS). XPS and UPS data demonstrate that V2O5 thin films are gradually reduced by annealing in the ultrahigh vacuum chamber at temperatures up to 400 8C due to the formation of oxygen vacancy. The oxygen defect in the remaining thi...

2016
Chi Ming Chan Lu-Tao Weng

The surface properties of polymer blends are important for many industrial applications. The physical and chemical properties at the surface of polymer blends can be drastically different from those in the bulk due to the surface segregation of the low surface energy component. X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary mass spectrometry (ToF-SIMS) have been widely used...

2016
Alexander Gabourie Sanchit Deshmukh

X-Ray photoelectron spectroscopy (XPS) is a technique for identifying individual elements in a mixture/compound. Samples are irradiated by X-rays and the kinetic energy of ejected electrons is measured. Ejected electrons are captured by a spectrometer and measured intensities are plotted versus kinetic energy (Fig. 1). Each element appears as a series of peaks distributed as Gaussians/Lorentzia...

Journal: :Microelectronics Journal 2008
W. De La Cruz C. Gallardo-Vega S. Tougaard L. Cota

Laser ablation of a high purity (99.7%) iron target was used to accomplish the depositions of iron nanoparticles on the (0 0 0 1) face of single crystal sapphire wafers. The nanoparticles were characterized in situ by means of X-ray photoelectron spectroscopy (XPS). The growth mechanism was determined by applying the QUASES-Tougaard methodology to the extended part of the background intensity o...

Journal: :Macromolecular bioscience 2014
Laura Mazzocchetti Theodoros Tsoufis Petra Rudolf Katja Loos

The successful synthesis of amylose brushes via enzymatic "grafting from" polymerization and the detailed characterization of all synthetic steps by X-ray photoelectron spectroscopy (XPS) and spectroscopic ellipsometry measurements are reported. Au and Si surfaces are amino-functionalized with self-assembled monolayers (SAMs) of cystamine and 3-aminopropyldimethyethoxysilane (APDMES), respectiv...

2008
Daniel Montplaisir Claude Daneault Bruno Chabot

The purpose of this study is to develop an analytical method to quantify the nitrogen present at the surface of paper by using X-ray photoelectronic spectroscopy (XPS). A sample of softwood thermomechanical pulp (TMP) was treated with a cationic starch containing primary amines, while another one was treated with a cationic polymer containing quaternary amines. We also grafted monomers containi...

2014
Yun Zhu Qing-Kai Yu Gu-Qiao Ding Xu-Guang Xu Tian-Ru Wu Qian Gong Ning-Yi Yuan Jian-Ning Ding Shu-Min Wang Xiao-Ming Xie Mian-Heng Jiang

2D β-Ga2O3 flakes on a continuous 2D graphene film were prepared by a one-step chemical vapor deposition on liquid gallium surface. The composite was characterized by optical microscopy, scanning electron microscopy, Raman spectroscopy, energy dispersive spectroscopy, and X-ray photoelectron spectroscopy (XPS). The experimental results indicate that Ga2O3 flakes grew on the surface of graphene ...

2010
V. M. Bermudez

S1. Procedure for determining SiO2 thickness using XPS Figures S1 and S2 show typical XPS data for SiO2 films prepared as described in the main text. The Si 2p data (Fig. S2a) show a peak from the substrate, which is partially resolved into a 2p1/2 and 2p3/2 spin-orbit doublet, and a peak from SiO2, which is too broad to resolve. Other features, due to SiOx (x<2) at the interface, are not readi...

2015
Mubarak Y. A. Yagoub Hendrik C. Swart Luyanda L. Noto Peber Bergman Elizabeth Coetsee

SrF2:Eu,Ce3+ nanophosphors were successfully synthesized by the hydrothermal method during down-shifting investigations for solar cell applications. The phosphors were characterized by X-ray diffraction (XRD), scanning Auger nanoprobe, time of flight-secondary ion mass spectrometry (TOF-SIMS), X-ray photoelectron spectroscopy (XPS) and photoluminescence (PL) spectroscopy. XRD showed that the cr...

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