Electronic and chemical properties of the TaN/a-SiOC:H stack studied by photoelectron spectroscopy for advanced interconnects

2008 ◽  
Vol 104 (7) ◽  
pp. 073708 ◽  
Author(s):  
E. Martinez ◽  
C. Guedj ◽  
D. Mariolle ◽  
C. Licitra ◽  
O. Renault ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Chemical Properties ◽  
And Chemical Properties

scholarly journals Effect of lubricant ageing on lubricants’ physical and chemical properties and tribological performance; Part I: effect of lubricant chemistry

2018 ◽  
Vol 70 (2) ◽  
pp. 385-392 ◽  
Author(s):  
Hui Cen ◽  
Ardian Morina ◽  
Anne Neville
Keyword(s):  
Photoelectron Spectroscopy ◽  
Chemical Properties ◽  
Tribological Performance ◽  
Acid Number ◽  
Physical And Chemical Properties ◽  
Total Acid ◽  
Content Type ◽  
Post Test ◽  
Physical And Chemical ◽  
And Chemical Properties

Purpose Ageing has been known to affect the performance of lubricants. However, there is a lot of debate as to whether ageing is beneficial or detrimental to the wear performance of lubricants. Design/methodology/approach The purpose of this research is to evaluate the effect of ageing on the viscosity, total acid number and Fourier-transform infrared spectroscopy information of a series of lubricants. The tribological performance (friction and wear) of the aged lubricants is also studied, followed by X-ray photoelectron spectroscopy analysis on the selected post-test samples to study the tribochemical features of the tribofilm. Findings The results show that ageing has a different impact on lubricants and tribological performances based on the physical and chemical properties. Originality/value These findings will be compared with the research on the role of water in lubricant ageing (Part II of this study).

The magnetization orientation of Fe ultrathin layers in contact with graphene

2016 ◽  
Vol 18 (48) ◽  
pp. 33233-33239 ◽  
Author(s):  
Mattia Cattelan ◽  
Igor Píš ◽  
Silvia Nappini ◽  
Elena Magnano ◽  
Federica Bondino ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Ultrathin Films ◽  
Photoelectron Spectroscopy ◽  
Magnetic Circular Dichroism ◽  
Chemical Properties ◽  
X Ray ◽  
Ultrathin Layers ◽  
Magnetization Orientation ◽  
Circular Dichroïsm ◽  
And Chemical Properties

In this paper, we study the magnetic and chemical properties of Fe/graphene vertically stacked ultrathin films by means of X-ray magnetic circular dichroism and X-ray photoelectron spectroscopy.

Investigating Electronic and Chemical Properties of Ge/GeOxNy/HfO2 Gate Stacks : High-Resolution Photoelectron Spectroscopy Using Synchrotron Radiation

2019 ◽  
Vol 3 (2) ◽  
pp. 385-390
Author(s):  
Olivier J. Renault ◽  
Eugénie Martinez ◽  
Lionel Fourdrinier ◽  
Laurent Clavelier ◽  
Nick Barrett ◽  
...  
Keyword(s):  
High Resolution ◽  
Synchrotron Radiation ◽  
Photoelectron Spectroscopy ◽  
Chemical Properties ◽  
Gate Stacks ◽  
And Chemical Properties

scholarly journals Electronic Structure of 2H-Tetraphenylporphyrin at Fe/Si (100) Interface

2013 ◽  
Vol 2013 ◽  
pp. 1-7
Author(s):  
Chhagan Lal ◽  
I. P. Jain
Keyword(s):  
Photoelectron Spectroscopy ◽  
Molecular Level ◽  
Iron Silicide ◽  
Chemical Properties ◽  
Ultraviolet Photoelectron Spectroscopy ◽  
Physical And Chemical Properties ◽  
X Ray ◽  
Iron Coordination ◽  
Physical And Chemical ◽  
And Chemical Properties

Many recent studies have highlighted the possibility to tailor the physical and chemical properties of porphyrin at the molecular level to design novel catalysts, sensors and devices with applications in electronics, opto-electronics, and so forth. In the present work, we study the electronic properties of 2H-Tetraphenylporphyrin (2H-TPP) on iron (Fe) and iron silicide (Fe3Si) onto Si (100) substrate using X-ray and Ultraviolet photoelectron spectroscopy (XPS & UPS). The results revealed that the iron atom is coordinated by TPP molecules on Fe/Si as well as on Fe3Si/Si. XPS results provide evidence of the iron coordination with TPP molecules. The UPS analysis evidenced the fine structure in the electronic spectra related to HOMO states below the Fermi level.

scholarly journals Atomic Layer Deposition of Cerium Dioxide Film on TiN and Si Substrates: Structural and Chemical Properties

MRS Advances ◽  
2017 ◽  
Vol 2 (52) ◽  
pp. 3005-3010 ◽  
Author(s):  
Silvia Vangelista ◽  
Rossella Piagge ◽  
Satu Ek ◽  
Tiina Sarnet ◽  
Gabriella Ghidini ◽  
...  
Keyword(s):  
Atomic Layer Deposition ◽  
Photoelectron Spectroscopy ◽  
Cerium Dioxide ◽  
Relative Concentration ◽  
Chemical Properties ◽  
Atomic Layer ◽  
Si Substrates ◽  
Layer Deposition ◽  
Dioxide Film ◽  
And Chemical Properties

ABSTRACTCerium dioxide (CeO2) thin films were deposited by atomic layer deposition (ALD) on both Si and TiN substrates. The ALD growth produces CeO2 cubic polycrystalline films on both substrates. However, the films show a preferential orientation along <200> crystallographic direction for CeO2/Si or <111> for CeO2/TiN. In correspondence, we measure a relative concentration of Ce3+ equals to 22.0% in CeO2/Si and around 18% in CeO2/TiN, by X-ray photoelectron spectroscopy. Such values indicate the presence of oxygen vacancies in the films. Our results underline the films differences and similarities between ALD-deposited CeO2 either on Si or TiN substrates, thus extending the knowledge on the CeO2 structural and chemical properties.

Characterization of Y/TiO2 Nanoparticles and their Reactivity for CO2 Photoreduction

2011 ◽  
Vol 55-57 ◽  
pp. 1506-1510 ◽  
Author(s):  
Jing Wei ◽  
Xin Tan ◽  
Tao Yu ◽  
Lin Zhao
Keyword(s):  
Electron Microscopy ◽  
Photoelectron Spectroscopy ◽  
Sol Gel ◽  
Chemical Properties ◽  
X Ray Diffraction ◽  
X Ray ◽  
Uv Illumination ◽  
Transmission Electron ◽  
And Chemical Properties

A series of Y/TiO2nanoparticles (NPs) were synthesized via sol-gel method. The crystal structures, morphologies and chemical properties were characterized using X-ray diffraction (XRD), high resolution transmission electron microscopy (HR-TEM) and X-ray photoelectron spectroscopy (XPS). We investigated the effects of different doping amounts of Y on the reaction of CO2photoreduction. The results shown that 0.1 wt.%Y/TiO2(0.1YT) performed the highest photocatalytic activity, which yielded 384.62 µmol/g∙cat. formaldehyde after 6 h of UV illumination.

Effect of the Addition of CeO2 to Iron Phosphate Glass for Catalytic Applications

2015 ◽  
Vol 15 (10) ◽  
pp. 8010-8015 ◽  
Author(s):  
Jae-Yeop Chung ◽  
Jong-Hwan Kim ◽  
Su-Yeon Choi ◽  
Bong-Ki Ryu
Keyword(s):  
Phosphate Glass ◽  
Photoelectron Spectroscopy ◽  
Catalytic Properties ◽  
Chemical Properties ◽  
Iron Phosphate ◽  
High Water ◽  
Network Modifier ◽  
Ft Ir ◽  
Ft Ir Spectroscopy ◽  
And Chemical Properties

We investigated the effect of CeO2 content on the catalytic behavior and chemical properties of the (100?x)(80P2O5–20Fe2O3)–xCeO2 (x = 0, 4, 8, 12, 16, 20 and 24 wt%) glass system. Using thermogravimetric analysis, we confirmed that the catalytic activity increased until a CeO2 content of 16 wt%, beyond which, it decreased. The reasons for the change in the catalytic properties of the glass samples were determined using Fourier transform infrared (FT-IR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and density analyses. It was confirmed using the FT-IR and XPS-O1s spectra that CeO2 acts as a network modifier in iron phosphate glass. When the CeO2 content is above 16 wt%, the number of non-bridging oxygen atoms decreases with increasing CeO2 content. For these reasons, the catalytic properties decrease when the CeO2 content is more than16 wt%. From the dissolution rate measurements, it can be observed that cerium-iron phosphate has a high water resistance. Also, as we expected, it can be confirmed that the chemical durability is improved with increasing CeO2 content.

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