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Journal ArticleDOI

X-ray photoelectron spectroscopy study on the chemistry involved in tin oxide film growth during chemical vapor deposition processes

TLDR
In this paper, the authors investigated the reaction mechanism of monobutyl tinchloride (MBTC) and water during SnO2 thin film growth using x-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM).
Abstract
The chemistry of atmospheric pressure chemical vapor deposition (APCVD) processes is believed to be complex, and detailed reports on reaction mechanisms are scarce. Here, the authors investigated the reaction mechanism of monobutyl tinchloride (MBTC) and water during SnO2 thin film growth using x-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). XPS results indicate an acid-base hydrolysis reaction mechanism, which is tested with multilayer experiments, demonstrating self-terminating growth. In-house developed TEM wafers are used to visualize nucleation during these multilayer experiments, and results are compared with TEM results of APCVD samples. Results show almost identical nucleation behavior implying that their growth mechanism is identical. Our experiments suggest that in APCVD, when using MBTC and water, SnO2 film growth occurs via a heterolytic bond splitting of the Sn-Cl bonds without the need to invoke gas-phase radical or coordination chemistry of the MBTC precursor. © 2013 American Vacuum Society.

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Fabrication of 3D Core–Shell Multiwalled Carbon Nanotube@RuO2 Lithium-Ion Battery Electrodes through a RuO2 Atomic Layer Deposition Process

TL;DR: A fully characterized atomic layer deposition process for RuO2, electrochemical cycling data for ALD RuO1, and the application of theRuO2 to a composite carbon nanotube electrode scaffold with nucleation-controlled RuO 2 growth are reported.
Journal ArticleDOI

Effect of annealing on chemical, structural and electrical properties of Au/Gd2O3/n-GaN heterostructure with a high-k rare-earth oxide interlayer

TL;DR: In this paper, the chemical, structural and electrical characteristics of a fabricated Au/Gd2O3/n-GaN heterostructure with gadolinium oxide (GdO3) as an insulating layer are explored by XPS, XRD and I-V techniques at room temperature and 400°C annealing.
Journal ArticleDOI

Nano- and micro-tribological behaviours of plasma nitrided Ti6Al4V alloys.

TL;DR: The experimental results confirmed that the nanohardness, Young's modulus, micro scratch wear resistance, nanowear resistance, sliding wear resistance of the TAPN samples were much better than those of the TA samples.
Journal ArticleDOI

Selection of micro-fabrication techniques on stainless steel sheet for skin friction

TL;DR: The state-of-the-art techniques used for surface texturing, e.g., wet etching, plasma etchings, laser surface textured (LST), 3D printing, etc., are reviewed in this paper.
Journal ArticleDOI

Microstructure and mechanical property of TiSiN nanocomposite film with inserted CrAlN nanomultilayers

TL;DR: In this paper, a series of TiSiN films inserted by CrAlN nanomultilayers with different thicknesses was prepared by reactive magnetron sputtering, and the influences of CrAln layer thickness on the microstructure and hardness of films were investigated by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM) and nano-indentation techniques.
References
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Journal ArticleDOI

The surface and materials science of tin oxide

TL;DR: A review of surface science studies of single crystal surfaces, but selected studies on powder and polycrystalline films are also incorporated in order to provide connecting points between surface sciences studies with the broader field of materials science of tin oxide as discussed by the authors.
Journal ArticleDOI

Surface chemistry of atomic layer deposition: A case study for the trimethylaluminum/water process

TL;DR: In this paper, the surface chemistry of the trimethylaluminum/water ALD process is reviewed, with an aim to combine the information obtained in different types of investigations, such as growth experiments on flat substrates and reaction chemistry investigation on high-surface-area materials.
Journal ArticleDOI

Silsesquioxanes as models for silica surfaces

TL;DR: In this article, a single-crystal X-ray diffraction study of trisilanol 1 and 3b has been carried out, showing structural similarities with trifunctional monomers.
Journal ArticleDOI

On silsesquioxanes’ accuracy as molecular models for silica-grafted complexes in heterogeneous catalysis

TL;DR: In this paper, the use of silsesquioxanes (POSS) organometallic complexes as molecular models for silica-grafted catalytic centers has been studied.
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