Showing papers in "Applied Surface Science in 1997"

TL;DR: In this paper, the authors describe the physical processes which come into play in laser-solid interaction on the ultrafast time scale open new routes of modifying the structure and the morphology of materials and offer interesting perspectives in laser materials processing.

TL;DR: In this article, the authors studied the potential of sub-picosecond laser radiation for the ablation and microstructuring of metals and demonstrated the advantages and potentials of such radiation for ablation of solid targets by Ti:sapphire laser radiation.

TL;DR: In this paper, a method for the quantitative analysis of the Fe(2p) and O(1s) core level XPS spectra which allows the determination of the intensity of specific shake-up features within the Fe 2p spectrum is presented.

TL;DR: In this paper, the binding energy of the anionic partner of the parent anion in Mg 2p has been investigated in the case of MgO samples with reference to specific lattice and surface properties of the oxide itself.

TL;DR: In this paper, a high electron mobility of 30 cm 2 /V·s was obtained for undoped ZnO films with the thickness of only 220 nm and a resistivity of 7.5×10 −4 Ω cm.

TL;DR: In this article, a Ti:sapphire laser at 790 and 395 nm and pulse widths varying between 0.2 and 5 ps was used for multi-shot processing of sapphire.

TL;DR: In this article, the chemical and electronic structures of ultrathin SiO2 thermally grown on Si(100) and Si(111) have been investigated by using Fourier-transform infrared attenuated total reflection (FT-IR-ATR) and X-ray or ultraviolet excited photoelectron spectroscopy (XPS/UPS), respectively.

TL;DR: In this paper, the formation of pyridinic and pyrrolic nitrogen and quaternary nitrogen in polyaromatic groups in the intumescent structures is shown.

TL;DR: In this paper, the phase difference between the driving signal of the piezo oscillating the cantilever in the TM-AFM and the resulting motion of the tip is exploited in order to access additional information about the tip sample interaction.

TL;DR: In this article, Asahi Chemical Industy Co., Ltd. developed a technology for a highly selective partial hydrogenation of benzene to cyclohexene and succeeded in the commercialization of a new production process for producing cyclomethane from benzene through cyclochexene.

TL;DR: In this paper, the in situ photoluminescence and XAFS investigations indicate that these titanium oxide species are highly dispersed and exist in a tetrahedral coordination in the zeolite cavities and its framework.

TL;DR: In this article, a quartz crystalline mass-sensor was exploited to detect the adsorption processes at the gas-solid interface during the film growth, and the value of the diffusion coefficient D=0.0075 m2/s for gas-phase Ta(OC2H5)5 has been calculated at 250°C.

TL;DR: In this paper, the direct silanation of nanosized superparamagnetic particles (γ-Fe2O3) using 3-aminopropyl triethoxy silane is described.

TL;DR: The adsorption behavior of inorganic oxyanions on soil minerals is an important factor in the transport of subsurface environmental pollutants as mentioned in this paper, and the results obtained from the dried surface by X-ray photoelectron spectroscopy (XPS) are in good agreement with data from spectrophotometric analysis of chromate remaining in the supernatant liquid.

TL;DR: In this paper, the potential advantages of quantum wells for enhancing solar cell efficiency were discussed and theoretical and experimental studies were conducted to determine the quasi-Fermi level separation in quantum wells inside a p-i-n system in order to understand the voltage behaviour of QWSCs.

TL;DR: In this article, the authors examined the reasons for the improvements gained by using intermediate zinc pulses in atomic layer epitaxy growth of TiN and NbN films by a comprehensive characterization and comparison of films prepared from TiCl4 or NbCl5 and NH3.

TL;DR: In this paper, the authors used metallorganic chemical vapor deposition (MOCVD) and laser ablation to obtain a red fluorescence spectrum of Y2O3:Eu with the main peak centered about 611 nm wavelength.

TL;DR: In this article, a novel amorphous Ni-Co-W-B alloy powder, which showed higher catalytic activity than Ni−Co-B for the hydrogenation of benzene, was prepared by chemical reduction and characterized by TEM and XRD.

TL;DR: In this article, the adsorption of carbon dioxide in silicalite and NaZSM-5 zeolite has been studied using new Monte Carlo software in which sodium cations and framework are movable during the simulation.

TL;DR: In this paper, the authors used scan tunneling microscopy (STM) and vibrational spectroscopy by sum frequency generation (SFG) to monitor the surface structure and reaction intermediates during high pressure catalytic reactions.

TL;DR: In this paper, an improved Pt-Mo-NaSiSiO2 was proposed to remove NOx with H2 in the presence of an excess of oxygen, which has a higher temperature range of NOx conversion and a lower N2O byproduct formation.

TL;DR: In this paper, a layer-by-layer silicon-nitride film was successfully deposited by alternating exposures to dichloro-silane and hydrazine and the saturated deposition rate was about 2.3 A/cycle, very near to 1 monolayer/cycle.

TL;DR: In this paper, the authors used excimer laser surface treatment to improve corrosion resistance of NiTi SMA plates and showed that the laser treatment performed in air improved all corrosion parameters, which is explained by the homogenization of the surface by melting, the hardening due to N incorporation and the thickening of the oxide layer.

TL;DR: In this paper, polycrystalline ZnS films were grown from ZnCl2 and H2S on glass and mica using the atomic layer epitaxy (ALE) technique.

TL;DR: In this paper, the authors elaborate on earlier work where they reported on the apparent existence of a "magic" angle for the determination of the thickness of uniform overlayers on rough substrates.

TL;DR: The surface activated bonding method has been applied to bond the III-V compound semiconductor wafers and Si wafer directly at room temperature in ultra high vacuum as discussed by the authors, where the surfaces to be bonded are sputter-cleaned and activated by Ar fast atom beam irradiation and brought into contact under slight pressure.

TL;DR: In this article, the authors measured Ru 3d, 4s, 4p and O 1s high-resolution core-level X-ray photoelectron spectra, along with Ru O 2 (TiO2) diffraction angular distributions, for RuO2(110).

TL;DR: In this article, the benefits and potentials of ALE in growth of amorphous and polycrystalline films are discussed using some selected processes as examples, such as low temperature deposition of high quality nanolaminate dielectrics, controlled deposition of optical multilayers, growth of low resistivity transition metal nitrides using elemental zinc as a reducing agent, and preparation of ZnS1−xSex solid solutions via surface anion substitution reactions.

TL;DR: In this paper, the adsorption of copper(II) ions onto zinc sulphide particles at pH 9 was determined by inductively coupled plasma atomic emission spectrophotometry and the resulting surfaces were characterised by X-ray photoelectron spectroscopy.

TL;DR: In this article, a flow-type atomic layer epitaxy (ALE) reactor from LaCoO 3 and Co(thd) 2 precursors using ozone as oxygen source was used.