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Showing papers in "Applied Surface Science in 1987"


Journal ArticleDOI
TL;DR: The surface oxidation of pyrite in air-saturated acid solutions resulted in the formation of a surface sulfur layer the extent and nature of which depended on solution composition and exposure time.

261 citations


Journal ArticleDOI
TL;DR: In this article, the non-stoichiometry of the surface of LaMO3 perovskites was found to be much more marked than that in the bulk than that of LaCrO3 to LaNiO3.

149 citations


Journal ArticleDOI
TL;DR: In this paper, the S2p/3p XPS and the S Auger peaks are broadened on photoelectrochemical oxidized CdS due to deposition of elemental sulfur.

126 citations


Journal ArticleDOI
TL;DR: The influence of cold work on the initially formed oxide layer on the stainless steels AISI 304 and Incology 800H has been studied by XPS as mentioned in this paper, which showed a similar oxidation behavior.

116 citations


Journal ArticleDOI
TL;DR: In this article, a two-carrier mechanism was proposed to describe charge transport on porous alumina, where at low humidities, a phonon-induced electron tunneling was postulated between donor water sites; at high humidities protonic conduction dominates.

63 citations


Journal ArticleDOI
TL;DR: In this article, a new model for the characteristics of polysilicon TFTs is deduced, which leads to an analytical expression for the threshold voltage, the subthreshold and the above threshold regime.

58 citations


Journal ArticleDOI
TL;DR: In this article, the mechanism by which yttrium modifies alumina growth was studied by comparing the behaviour of a high purity FeCr23Al5 alloy, either undoped or Y doped by implantation.

46 citations


Journal ArticleDOI
Shigeyuki Mori1
TL;DR: In this article, the adsorption of benzene on a fresh steel surface was carried out in high vacuum at room temperature, where the fresh surface was formed by cutting in a high vacuum chamber, and benzene was allowed to adsorb on the surface during cutting.

42 citations


Journal ArticleDOI
TL;DR: In this paper, the changes occuring at the surface of a CuO/MnO2 catalyst during two different reductive pretreatments with H2 were investigated and the difference in catalytic activity for the hydrogenation reaction between the two pretreated catalysts was correlated with the surface concentration and oxidation state of copper.

41 citations


Journal ArticleDOI
TL;DR: In this paper, a thermionic emission model for the initial stages of Si oxidation is proposed and the steady state picture of this series reaction scheme is discussed and used to explain new experimental results.

40 citations


Journal ArticleDOI
TL;DR: In this paper, electron-stimulated desorption (ESD) in conjunction with threshold ionization detection (appearance potential) was used to detect the neutral oxygen atoms, but the ionizer was operated in the appearance potential (AP) mode to make it possible to distinguish the oxygen atoms from products formed by collision of the oxygen atom with the walls.

Journal ArticleDOI
TL;DR: In this article, the authors used X-ray photoelectron spectroscopy (XPS) to study the oxidation of NiAl in oxygen at atmospheric pressure and found that initial formation of NiO and NiAl 2 O 4 seems to be avoided at the higher oxidation temperatures ( > 750 K).

Journal ArticleDOI
TL;DR: In this paper, a SiO2 thin film about 10 A thick forms on ZrO2 and this thin film was stable in vacuum up to 723 K but, at 823 K, either rearranged into small clusters or formed a solid solution with the surface of Zr O2.

Journal ArticleDOI
J.J. Kelly1, A.C. Reynders1
TL;DR: The etching kinetics of GaAs in alkaline H2O2 solutions are characterized by three main features: at pH > 12 the oxidizing agent is strongly dissociated and a low etch rate is observed; at pH < 10 effective etching is prevented by the formation of an oxide film on the semiconductor surface; in the intermediate range, the dissolution rate is kinetically controlled and is mainly determined by the H 2O2 concentration.

Journal ArticleDOI
TL;DR: In this paper, a surface cleaned and annealed under ultra-high vacuum conditions was examined in air using a scanning tunneling microscope and the STM images revealed a smooth surface with a plateau structure.

Journal ArticleDOI
TL;DR: In this article, the surface layers of spinel oxides CuxCo3−xO4 (0⩽x < 1), obtained by thermal decomposition of nitrate mixtures, have been studied by means of XPS or ESCA.

Journal ArticleDOI
Phl Peter Notten1, Aajm Damen1
TL;DR: In this paper, the etch rate-potential curves of p-InP in HBrandBr2/HBr solutions in the dark and under illumination were correlated with current potential curves.

Journal ArticleDOI
A.H. Van Ommen1
TL;DR: In this paper, the diffusion properties of Group III and V elements in SiO2 are reviewed, including the differences due to different chemical states, ambient effects and concentration dependent diffusion.

Journal ArticleDOI
TL;DR: In this article, the chemical composition and structure of silicon oxynitrides, deposited in low pressure and plasma enhanced chemical vapour deposition processes, were discussed and a model for the deposition of LPCVD material was derived.

Journal ArticleDOI
TL;DR: In this paper, it has been established that at low cooling rate the dull side of the ribbon is more porous and deeply oxidized as well as depleted in boron, while the shiny side is covered by a compact layer of segregated borons.

Journal ArticleDOI
TL;DR: In this article, a combined system of Raman spectroscopy and ellipsometry is developed for the study of catalyst surfaces on which a chemical reaction is taking place, and the dielectric function and the thickness of a surface layer or a surface compound produced in the reaction are analyzed by ellipsometrics.

Journal ArticleDOI
TL;DR: In this article, the surface properties of oxides formed on Al 2024 were compared to those on Al 1100, using various surface pretreatments, such as chromate conversion coating, chromic acid anodizing, and sulfuric acid a-nodizing.

Journal ArticleDOI
TL;DR: The behavior of DMMP, dosed at 100 K with and without coadsorbed water on oxidized iron has been examined by temperature programmed desorption (TPD) and Auger electron spectroscopy (AES) as mentioned in this paper.

Journal ArticleDOI
TL;DR: The surface structure of Fe80B20 and Fe40Ni40B20 amorphous alloys in the as-received state and after HCI treatment was studied by X-ray photoelectron spectroscopy.

Journal ArticleDOI
TL;DR: In this article, the effects of hydriding on the Auger spectrum of titanium are investigated and can clearly be distinguished from the changes induced by oxygen contamination of the surface, and the composition of the investigated hydride was inferred from the measured bulk plasmon energy shift.

Journal ArticleDOI
TL;DR: In this article, the authors measured the evolution of a palladium/silicon interface under consecutive annealing periods, performed at 200°C in UHV conditions, by means of Auger electron spectroscopy combined with factor analysis applied in a sequential way.

Journal ArticleDOI
D. J. DiMaria1, Massimo V. Fischetti1
TL;DR: In this article, the transition from a nearly thermal electron distribution at electric fields less than approximately 1.5 MV/cm to significantly hot distributions with average energies between 2 and 6 eV at higher fields of up to 16 MV/ cm is discussed.

Journal ArticleDOI
TL;DR: In this article, the Auger parameter is used for determining the change in the extra-atomic relaxation energy and is applied to the characterization of silicon dielectric thin layers, showing that the relationship between the polarizability and the augmentation parameter is linear.

Journal ArticleDOI
TL;DR: In this article, a multipolar plasma passivation scheme controlled by in-situ ellipsometry has been developed to produce a high electrical quality InGaAs/Si3N4 interface.

Journal ArticleDOI
TL;DR: The dependence of the work function (∅) of dispenser cathodes on the concentration of Ir and Re alloyed with the tungsten emitting surface has been determined for controlled porosity dispenser (CPD) cathodes and matrix type cathodes as mentioned in this paper.