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The surface chemistry of the atomic layer deposition of metal thin films.
Nanotechnology
June 2024
Department of Chemistry, University of California, Riverside, CA 92521, United States of America.
In this perspective we discuss the progress made in the mechanistic studies of the surface chemistry associated with the atomic layer deposition (ALD) of metal films and the usefulness of that knowledge for the optimization of existing film growth processes and for the design of new ones. Our focus is on the deposition of late transition metals. We start by introducing some of the main surface-sensitive techniques and approaches used in this research.
View Article and Find Full Text PDFComment on "Bipolar Resistive Switching in Lanthanum Titanium Oxide and an Increased On/Off Ratio Using an Oxygen-Deficient ZnO Interlayer".
ACS Appl Mater Interfaces
February 2024
Department of Electrical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR.
The Mott-based resistive switching random access memory (RRAM) has been considered as a promising candidate for next-generation nonvolatile mass storage. Its performance relies on the oxygen migration process. In , , 17682-17690, Wang et al.
View Article and Find Full Text PDFReply to comment on "which fraction of stone wool fibre surface remains uncoated by binder? A detailed analysis by time-of-flight secondary ion mass spectrometry and X-ray photoelectron spectroscopy" by Hirth , 2021, , 11, 39545, DOI: 10.1039/d1ra06251d".
RSC Adv
June 2023
Dept. Materials Physics and Analytics, BASF SE 67056 Ludwigshafen Germany.
This is a reply to the Comment of Okhrimenko in the same issue of . We discuss the arguments brought forward by said authors, oppose their objections and show the unchanged validity of our results.
View Article and Find Full Text PDFThe article mentioned in the title of this comment paper reports on an investigation of the organic binder presence and distribution on stone wool fibres with surface sensitive techniques (X-ray photoelectron spectroscopy (XPS), QUASES XPS modelling, time-of-flight secondary ion mass spectrometry (ToF-SIMS) mapping) and attempts to correlate the results with fibre performance in acellular biosolubility tests. However, the study has assumptions, hypothesis and results that do not take into account the recognised science and regulations on biopersistence of stone wool fibres, limitations of the utilized surface sensitive techniques and modelling approach and it contains a contradiction with biosolubility experiments. In this comment article, we discuss these points, propose improved QUASES XPS modelling and present recent ToF-SIMS mapping results that reflect biosolubility behaviour of the stone wool fibres.
View Article and Find Full Text PDFComment on "Liquid-Gas Interface of Iron Aqueous Solutions and Fenton Reagents".
J Phys Chem Lett
July 2022
National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba 305-8506, Japan.
A recent Letter in this Journal (Gladich et al. 13, 2994-3001) reported that photoelectron spectroscopy could not detect any products on the surface of aqueous Fe jets dosed with gaseous hydrogen peroxide. The Letter however concluded that Fe(aq) ions react with HO(g) at the water-vapor interface to produce the same Fe + HO products as their reaction with HO(aq) in bulk water.
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