Showing papers in "Applied Surface Science in 1990"

TL;DR: In this paper, a detailed characterization of the surface composition of non-alloyed Ti implant materials, prepared according to procedures commonly used in clinical practice (machining, ultrasonic cleaning and sterilization).

TL;DR: In this paper, the chemical composition of anodic oxide films formed on pure Ti during electropolishing and anodic oxidation was investigated using multi-technique surface analysis (XPS, AES/SAM, SIMS, RBS and NRA).

TL;DR: Porous silicon is a morphological form of single-crystal silicon obtained by anodic attack in concentrated hydrofluoric acid solutions as mentioned in this paper, and the formation mechanism of the pore network is still not well understood.

TL;DR: In this paper, the combination of angle-resolved X-ray photoelectron spectroscopy (ARXPS) and a modified Levenberg-Marquardt (LM) fit procedure has been used to study a native oxide layer on a clean Si(100) substrate.

TL;DR: The carbonation and hydroxylation state of a series of basic oxides (La 2 O 3, RhLaO 3 and YBa 2 Cu 3 O 7 ) has been examined by XPS as discussed by the authors.

TL;DR: In this article, the optical constants for Cu, Ag, and Au determined by reflection electron energy loss spectroscopy (REELS) using a data treatment method described in the previous paper in this Journal are reported.

TL;DR: In this article, a 50 W CO 2 laser (10.6 μm) and a 40 W 2J/20 Hz XeCl excimer laser (308 nm) were used for ablation and surface modification of glass.

TL;DR: In this paper, the nature of the UV-induced decomposition process of thin solid palladium acetate films was investigated on different substrate materials (Al2O3, quartz, polyimide) with a pulsed KrF∗ excimer laser at 248 nm and an incoherent Xe∗2 excimer source peaking at λ = 172 nm.

TL;DR: An ultra-thin single-crystal film of MoSe2 has been proved to grow heteroepitaxially on a clean CaF2(111) substrate, regardless of the large difference in the crystal structures and of the lattice mismatch which is as large as 17% as mentioned in this paper.

TL;DR: In this article, the authors used streak photography, visible-UV emission spectroscopy, infrared emission and time-integrated photography to study the laser ablation of Y-Ba-Cu-O in an oxygen environment.

TL;DR: In this paper, the authors used various experimental methods to measure the coverage of gases on the wear particles formed during friction and found that low friction coefficient and low wear rate are associated with high coverage of adsorved gases.

TL;DR: In this article, a cyclic voltammetry was used to study the electrochemical behavior of benzotriazole adsorbed on copper surfaces, and a more compact film of bisbenzotrazolato copper (II), which shows better anticorrosion effects for copper, was formed when cyclic voltage measurement was applied.

TL;DR: In this paper, the initial sulfur products formed on the surface were sulfide and sulfate, due to the oxygen released from the sample in the presence of H2S, H2, and CO.

TL;DR: In this paper, the mechanism of UV photodeposition of palladium from the thin palladium acetate film was studied, and the results showed that the photodiposition is independent of the thickness of the film.

TL;DR: In this article, the change in chemical nature of the polymer surfaces upon laser and deep UV irradiation was studied by contact-angle measurements in both advancing and receding modes, and the results were compared with those of PPQ, PPES, polystyrene and PMMA.

TL;DR: The plasma fluorination of cellulose has been shown to increase surface hydrophobicity as mentioned in this paper, and the absorption time for water is greater than its evaporation time on the treated surface.

TL;DR: An example for successful introduction of KrF excimer lasers into a fabrication line for high-density multilayer printed circuit boards will be described and first experiences with excimer laser in a production environment are reported.

TL;DR: In this paper, the binding energy of cellulose nitrate was evaluated for use as a N(1s) reference standard in X-ray photoelectron spectroscopy (XPS) analysis of nitrogen-containing organic materials.

TL;DR: In this paper, the formation of lead-semiconductor Schottky barriers has been studied and it is shown that lead appears as a prototype metal forming unreacted, very sharp interfaces with many different semiconductors.

TL;DR: In this paper, a laser-induced process for the synthesis of ultrafine TiO 2 powders has been developed, which is mainly concerned with the evaluation of the role of the process parameters on production rate and reaction efficiency.

TL;DR: In this paper, the authors measured the C/Si composition ratio of β-SiC films on Si(001) with an Auger electron spectrometer combined with an Ar + ion sputtering gun.

TL;DR: In this paper, a comparative study of the mechanism of reactive ion etching of both Si and SiO 2 substrates using CHF 3 was carried out, where XPS and ellipsometry in the visible were used to follow surface modifications in relation to the plasma exposure time.

TL;DR: In this paper, the spatial distribution of the deposited material is studied by means of optical micro-densitometry, and different cos n θ laws (θ is the angle from the target normal) are found to fit the experimental results.

TL;DR: In this article, a conformable SiO 2 film was used to fill a high-quality SiO2 film into a deep trench, by repeating a cycle of conformable deposition of Si-like films; then its oxidation was studied.

TL;DR: In this article, the structural, electronic and electrical properties of these silicide-silicon interfaces are examined with the aid of results obtained with a large variety of in-situ and ex-Situ surface techniques.

TL;DR: In this paper, the authors reviewed the present knowledge of the chemistry and adhesion of metal-polymer interfaces formed on PMDA-ODA polyimide and showed a good overall correlation of chemistry to the microstructure and the adhesion characteristics of the metal polymer interface.

TL;DR: In this paper, the uncertainties inherent in XPS analyses of polymer/metal interfacial interactions are presented. The uncertainties stem mostly from differential charging of the sample surface during an XPS experiment, which may be mistaken for chemical bonding effects.

TL;DR: In this paper, the velocity and angular distributions of the positively charged, negatively charged and neutral products from 308 nm laser ablation of polyimide have been investigated and the differences in the distributions for the three kinds of products can be attributed to the different formation mechanisms.

TL;DR: In this paper, an advanced unified defect model (AUDM) is used to identify the As Ga (double donor with levels at 0.75 and 0.5 eV above the valence band maximum) and the Ga As antisite (double acceptor) with As Ga normally dominating due to the excess As which characterizes LEC GaAs crystals.

TL;DR: In this paper, SiC surfaces were heated to several temperatures (RT-1100°C) for 10 min in an ultra-high vacuum (UHV) chamber, and the surfaces were observed by LEED (low energy electron diffraction) and AES (Auger electron spectroscopy).