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Issue Information Surf. Interface Anal. (IF 1.665) Pub Date : 2021-01-13
No abstract is available for this article.
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Oxygen partial pressure influenced stoichiometry, structural, electrical, and optical properties of DC reactive sputtered hafnium oxide films Surf. Interface Anal. (IF 1.665) Pub Date : 2020-11-15 Sunke Venkataiah; S.V. Jagadeesh Chandra; Uppala Chalapathi; Ch.V.V. Ramana; Suda Uthanna
HfO2 films have been deposited on quartz and p‐type Si (100) substrates using DC reactive magnetron sputtering technique by sputtering of hafnium target at different oxygen partial pressures. Variation of cathode potential with oxygen partial pressure was systematically studied. The influence of oxygen partial pressure on chemical composition, crystallographic structure, and optical properties of HfO2
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The state of individual layers and interfaces in multilayer nanostructures [(Co40Fe40B20)34(SiO2)66/ZnO/C]46 Surf. Interface Anal. (IF 1.665) Pub Date : 2020-11-12 Yury A. Yurakov; Yaroslav A. Peshkov; Sergey A. Ivkov; Sergey V. Kannykin; Alexander V. Sitnikov; Evelina P. Domashevskaya
The multilayer nanostructures have drawn attention in fields from spintronics to microwave electronics. The purpose of this work was to determine the composition of individual layers and to control interfaces in three‐layer superstructures [(Co40Fe40B20)34(SiO2)66/ZnO/C]46 by means of X‐ray diffraction and X‐ray reflectivity. The samples with different thicknesses of metal‐containing composite layers
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Magnetic transition in ultrathin Co sandwiched between Au layers in [Au (3.16 nm)/Co (1.5 nm)]x35/Si(100) multilayers Surf. Interface Anal. (IF 1.665) Pub Date : 2020-11-08 Jitendra Tripathi; Anupam Sharma; Dileep Kumar; Jaiveer Singh; Rishabh Bisen; Shilpa Tripathi
The superparamagnetic to ferromagnetic transition in ultrathin Co layers has been investigated by systematic annealing of Co ultrathin layer sandwiched between a pair of Au layer in the [Au (3.16 nm)/Co (1.5 nm)]x35/Si(100) multilayers. Apart from this magnetic transition, annealing‐induced modifications in morphological and structural properties of this discontinuous island like Co ultrathin layer
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Synthesis and thermodynamic characterization of poly(methyl methacrylate)/multiwall carbon nanotube nanocomposite Surf. Interface Anal. (IF 1.665) Pub Date : 2020-12-04 Fatih Cakar
In the first part of this study, poly(methyl methacrylate) (PMMA)/multiwall carbon nanotube (MWCNT) nanocomposite was synthesized by adding carbon nanotube before polymerization with bulk polymerization. Surface morphology of the PMMA/MWCNT nanocomposite and the PMMA/MWCNT nanocomposite with Chromosorb W was characterized by scanning electron microscopy (SEM). Surface and thermodynamic properties of
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Quantitative relation between thickness and grafting density of temperature‐responsive poly(N‐isopropylacrylamide‐co‐acrylamide) thin film using synchrotron‐source ATR‐FTIR and spectroscopic ellipsometry Surf. Interface Anal. (IF 1.665) Pub Date : 2020-11-05 Phongphot Sakulaue; Tossaporn Lertvanithphol; Pitak Eiamchai; Wanwipa Siriwatwechakul
Poly(N‐isopropylacrylamide‐co‐acrylamide) (PNIAM‐co‐AM) grafted onto tissue culture polystyrene surfaces (TCPSs) with different thicknesses and grafting densities were prepared by varying the spin‐coating speed and UV irradiation time for use in cell sheet engineering. The thickness of the PNIAM grafted surface, less than 30 nm, was believed to influence protein adhesion and cell attachment. However
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Microstructure and biological activity of silicon‐doped composite coatings fabricated by micro‐arc oxidation on magnesium alloy Surf. Interface Anal. (IF 1.665) Pub Date : 2020-11-07 Yang Jiao; Xiao‐hui Ni; Guo‐you Zou; Liu‐bao Ren; Lei Yi; Quan‐ming Zhao
Among biomaterials, the mechanical properties of magnesium and its alloys are closest to those of human bone tissue, making these ideal materials for bone tissue repair and replacement. In order to further improve the biocompatibility and biological activity of the magnesium alloy AZ91D, micro‐arc oxidation with a constant‐current power supply mode was employed in this study in a silicate electrolyte
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Raman spectroscopy of copper phthalocyanine/graphene and 2,3,5,6‐tetrafluoro‐tetracyano‐quino‐dimethane/graphene interfaces Surf. Interface Anal. (IF 1.665) Pub Date : 2021-01-13 Ding‐Rong Deng; Qi‐Hui Wu
The copper phthalocyanine and 2,3,5,6‐tetrafluoro‐tetracyano‐quino‐dimethane molecules adsorbed on the copper and single‐layer graphene‐modified copper surfaces have been investigated using Raman and X‐ray photoelectron spectroscopy. The adsorbed amounts for both molecules on the two different substrates are almost comparable as confirmed by the C 1s and N 1s core level X‐ray photoelectron spectra
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XPS characterization of cobalt impregnated SiO2 and γ‐Al2O3 Surf. Interface Anal. (IF 1.665) Pub Date : 2021-01-13 Jhonn Cañón; Andrew V. Teplyakov
SiO2 and γ‐Al2O3 impregnation with nominal 10 and 20% of cobalt was examined using wet impregnation method starting with Co(NO3)2·6H2O. The samples were dried and analyzed by XPS prior to calcination to study the surface species in the solids and the role of the support in the processing of supported cobalt catalysts. The results showed that cobalt introduction alters the few top nanometers of the
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Decreasing charge recombination by magnetic trap of iron‐carbon (Fe‐AC) composite for enhanced photocatalytic performance Surf. Interface Anal. (IF 1.665) Pub Date : 2021-01-13 Dahlang Tahir; Bualkar Abdullah; Sultan Ilyas; Ahmad Nurul Fahri; Muhammad Angga Anugrah; Kyousik Kim; Hee Jae Kang
Electronic properties of composite Fe and activated carbon (AC) were determined by using X‐ray photoelectron (XPS) and reflection electron energy loss (REELS), structural properties by X‐ray diffraction (XRD), and photo‐catalytic performance by ultra violet visible (UV‐Vis) spectroscopy. The intensity of low loss spectrum shows surface state at 5.42 eV is decreased with increasing the amount of AC
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Theoretical and experimental studies of sol–gel electrodeposition on magnesium alloy Surf. Interface Anal. (IF 1.665) Pub Date : 2020-12-28 Zhaozhong Qiu; Bo Yin; Jianyong Wang; Jia Sun; Yunxiang Tong; Li Li; Rui Wang
In this study, the superhydrophobic surface with SiO2 nanoparticles and corrosion‐resisting property was prepared on magnesium alloy substrate by a simple one‐step sol–gel electrodeposition. The influence of electrodeposition time on hydrophobicity and morphology of the magnesium alloy surface was discussed. The molecular dynamics simulations were conducted to provide an insight into the interactions
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The structure and resistance characteristic of reduced graphene oxide paper under atomic oxygen exposure Surf. Interface Anal. (IF 1.665) Pub Date : 2020-12-22 HaiFu Jiang; HanYu Zhang; Tao Li; LiXiang Jiang; DongBo Tian
To study the effects of low earth orbit (LEO) environment on film surface structure and resistance characteristics, reduced graphene oxide paper (rGOP) was irradiated by atomic oxygen (AO) in ground‐based simulation facility. A rough pits surface, chemical oxidation, and change in lamina thickness were found after AO exposure. The erosion yield under AO attack changed from 3.56 × 10−25 to 4.04 × 10−25
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The role of pore structure and nitrogen surface groups in the adsorption behavior of formaldehyde on resin‐based carbons Surf. Interface Anal. (IF 1.665) Pub Date : 2020-12-22 Changqing Su; Keke Liu; Yang Guo; Hailong Li; Zheng Zeng; Liqing Li
This study focused on the role of pore structures and nitrogen surface functional groups in the formaldehyde (HCHO) adsorption on the carbonized resin‐based materials (UFC). After comparing the optimal sample UFAC‐700 obtained by the activation of UFC at 700°C with the commercial activated carbon (CAC) and other UFC, the HCHO adsorption capacity for UFAC‐700 (12.30 mg g−1) is more than three times
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pH‐dependent lubrication mechanism of graphene oxide aqueous lubricants on the strip surface during cold rolling Surf. Interface Anal. (IF 1.665) Pub Date : 2020-12-21 Weixin Meng; Jianlin Sun; Chenglong Wang; Ping Wu
The tribological performance and lubrication mechanism of graphene oxide (GO) aqueous lubricants with different pH levels on the strip surfaces during cold rolling were investigated. And triethanolamine (TEA) was used to adjust the pH levels of GO lubricants. The morphology of GO and physical characterization of GO lubricants were carried out. Four‐ball tribological tests and cold rolling experiments
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Study on corrosion behavior of new corrosion inhibitor imidazole derivatives for mild steel in oil‐in‐water emulsion Surf. Interface Anal. (IF 1.665) Pub Date : 2020-12-21 Sang Xiong; Hao Wu; Zhiyuan Liu; Yichao Wang; Wei Lin
Two imidazole derivatives, 2‐(2‐((benzo[d]thiazol‐2‐ylthio)methyl)‐4,5‐dihydro‐1H‐imidazol‐1‐yl)ethan‐1‐ol (BTM) and 2‐(2‐((1H‐benzo[d][1,2,3]triazol‐1‐yl)methyl)‐4,5‐dihydro‐1H‐imidazol‐1‐yl)ethan‐1‐ol (BTMS), as a new corrosion inhibitor were synthesized, and their inhibition behaviors for mild steel contained in emulsion were investigated by gravimetric experiment, electrochemical tests, and theoretical
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Interplay between the composition of the passive film and the corrosion resistance of citric acid‐passivated AISI 316L stainless steel Surf. Interface Anal. (IF 1.665) Pub Date : 2020-12-13 Américo Tomás da Costa; Mara Cristina Lopes de Oliveira; Renato Altobelli Antunes
Citric acid passivation is an attractive alternative to increase the corrosion resistance of stainless steels. In this work, the correlation of passive film composition and the corrosion properties of citric acid‐passivated AISI 316L stainless steel samples was assessed. The concentration of citric acid in the passivating solution was varied from 10 to 30 wt.%. Passive film composition was examined
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Part II: The influence of substrate type, film thickness, and primary ion type on molecular weight characterization of linear polydimethyl siloxane films by secondary ion mass spectrometry Surf. Interface Anal. (IF 1.665) Pub Date : 2020-12-07 Paul R. Vlasak; Michaeleen L. Pacholski; Joo H. Kang; Kenneth L. Kearns; Carl W. Reinhardt
In our previous paper, we showed that the molecular weight of linear, trimethyl‐terminated polydimethyl siloxane (PDMS) can be estimated using a standard curve by measuring PDMS endgroup‐related signal normalized to backbone‐related signal for PDMS films that are thick relative to the information depth of SIMS. Within industrial surface analysis laboratories, it is more likely that PDMS fluid is encountered
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Issue Information Surf. Interface Anal. (IF 1.665) Pub Date : 2020-12-08
No abstract is available for this article.
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Spectroscopic ellipsometry of SU‐8 photoresist from 190 to 1680 nm (0.740–6.50 eV) Surf. Interface Anal. (IF 1.665) Pub Date : 2020-10-14 George H. Major; Sean C. Chapman; Jeffrey T. Chapman; Joshua I. Wheeler; Shiladitya Chatterjee; Cody V. Cushman; Daniel H. Ess; Matthew R. Linford
SU‐8 is an important, epoxy‐based, negative photoresist that can create high aspect ratio features. Spectroscopic ellipsometry (SE) is a nondestructive analytical technique that can be performed in the open air. In this study, reflection and transmission SE measurement data were combined to model the optical function of SU‐8 photoresist. The data were fit using three different models: (i) a B‐spline
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High‐resolution peak analysis in TOF SIMS data Surf. Interface Anal. (IF 1.665) Pub Date : 2020-10-15 Lev D. Gelb; Negar Shahrokh Esfahani; Amy V. Walker
High mass resolution time‐of‐flight secondary ion mass spectrometry (TOF SIMS) can provide a wealth of chemical information about a sample, but the analysis of such data is complicated by detector dead‐time effects that lead to systematic shifts in peak shapes, positions, and intensities. We introduce a new maximum‐likelihood analysis that incorporates the detector behavior in the likelihood function
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Nitrogen‐doped mesoporous carbon materials for oxidative dehydrogenation of propane Surf. Interface Anal. (IF 1.665) Pub Date : 2020-10-04 Wunengerile Zhang; Gegerile Zhao; Tegshi Muschin; Agula Bao
The CN‐15‐x series materials with different doses of SBA‐15 template and the CN‐y‐2.0 series materials with different hard templates were prepared by the hard template method with hexamethylenetetramine as the carbon and nitrogen source. The obtained mesoporous carbon materials were characterized by X‐ray diffraction (XRD), N2 adsorption–desorption, transmission electron microscopy (TEM), Raman spectroscopy
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Interface formation of Al2O3 on n‐GaN(0001): Photoelectron spectroscopy studies Surf. Interface Anal. (IF 1.665) Pub Date : 2020-09-30 Rafał Lewandków; Miłosz Grodzicki; Piotr Mazur; Antoni Ciszewski
Al2O3 insulator layers were deposited step by step by the physical vapor deposition (PVD) method onto gallium nitride in the wurtzite form, n‐type and (0001)‐oriented. The substrate surface and the early stages of Al2O3/n‐GaN(0001) interface formation were characterized in situ under ultra‐high vacuum conditions by X‐ray and ultraviolet photoelectron spectroscopy (XPS, UPS). The electron affinity (EA)
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Surface roughness and electrical conductivity of the SnO2 ultra‐thin layers investigated by X‐ray reflectivity Surf. Interface Anal. (IF 1.665) Pub Date : 2020-10-04 Saeid Asgharizadeh; Masoud Lazemi; Seyed Mohammad Rozati; Mark Sutton; Stefano Bellucci
Spray pyrolysis technique was applied to deposit two sets of ultra‐thin layers of tin dioxide (SnO2). For the first and second sets, 0.01 and 0.05 molar precursor solutions were prepared, respectively. In both sets, utilizing the X‐ray reflectivity (XRR) technique, the effect of precursor concentration (PC) and precursor volume (PV) on the layer structure are investigated. The layer thickness of the
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Colorful superhydrophobic materials with durability and chemical stability based on kaolin Surf. Interface Anal. (IF 1.665) Pub Date : 2020-12-01 Mengnan Qu; Yajie Pang; Menghui Xue; Lili Ma; Lei Peng; Xiangrong Liu; Shanxin Xiong; Jinmei He
Inspired by the natural superhydrophobic surfaces with various colors such as the lotus leaves and the wings of butterflies, we report a one‐step method to fabricate superhydrophobic coatings by the combination of kaolin, acrylic color and organosiloxanes. The coatings were characterized using X‐ray photoelectron spectroscopy, scanning electron microscopy, and other analytical techniques. Different
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Enrichment of aluminium in the near‐surface region of natural quartzite rock after aluminium exposure Surf. Interface Anal. (IF 1.665) Pub Date : 2020-12-01 Klaus‐Jürgen Hüenger; Mario Kositz; Matti Danneberg; Jörg Radnik
Alkali–silica reaction (ASR) is an ongoing problem that causes damage to concrete constructions and reduces their durability. Therefore, minimizing this undesired reaction is of great interest for both safety and economic reasons. Additives containing high aluminium content are very effective in reducing the release of silica and enhancing the durability of concrete; however, the mechanism for this
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Analysis the water in aggregate glue droplets of spider orb web by TOF‐SIMS Surf. Interface Anal. (IF 1.665) Pub Date : 2020-12-01 Yue Zhao; Masato Morita; Tetsuo Sakamoto
Orb‐weaver spiders of the family Araneidae produce a viscous glue from aggregate glands. Spiders effectively capture prey by coating the viscous glue onto the spiral lines. The viscous glue has an unusual property. The main components are glycoproteins, salts (low molecular mass compounds [LMMCs] and inorganic salt), and water. The interaction of water and glycoproteins relies on the presence of salts
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A study of the interfacial chemistry between polymeric methylene diphenyl di‐isocyanate and a Fe–Cr alloy Surf. Interface Anal. (IF 1.665) Pub Date : 2020-11-25 Jorge Bañuls‐Ciscar; Gustavo F. Trindade; Marie‐Laure Abel; Christopher Phanopoulos; Griet Pans; Daniele Pratelli; Kristof Marcoen; Tom Hauffman; John F. Watts
The interactions of polymeric methylene diphenyl di‐isocyanate (pMDI) and a model Fe–Cr alloy have been studied by X‐ray photoelectron spectroscopy (XPS) and time‐of‐flight secondary ion mass spectrometry (ToF‐SIMS). Films of two different thicknesses have been investigated: one with an extremely thin pMDI layer in which the interfacial chemistry can be probed directly and a thicker one in which sputter
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Modification of the glass surface with hydrophobic silica thin layers using tetraethylorthosilicate (TEOS) and trimethylchlorosilane (TMCS) precursors Surf. Interface Anal. (IF 1.665) Pub Date : 2020-11-25 Adi Darmawan; Sabila Akhbar Rasyid; Yayuk Astuti
The synthesis of the hydrophobic silica layer was conducted using the sol–gel method by reacting silica precursor trimethylchlorosilane (TMCS) and tetraethylorthosilicate (TEOS) with variations in the precursor composition ratio (TMCS:TEOS) of 10:90, 25:75, 50:50, 75:25, and 90:10 and then calcined at various temperatures. The TMCS‐TEOS silica thin layer has a significant influence on the surface hydrophobicity
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Corrosion protection of the AA2198‐T8 alloy by environmentally friendly organic‐inorganic sol‐gel coating based on bis‐1,2‐(triethoxysilyl) ethane Surf. Interface Anal. (IF 1.665) Pub Date : 2020-11-25 Rafael Emil Klumpp; Uyime Donatus; Rejane Maria Pereira da Silva; Renato Altobelli Antunes; Caruline de Souza Carvalho Machado; Mariana Xavier Milagre; João V. de Sousa Araujo; Bárbara Victoria Gonçalves de Viveiros; Isolda Costa
In this work, a surface coating composed of organic‐inorganic hybrid sol‐gel based on bis‐1,2‐(triethoxysilyl) (BTSE) ethane was applied on AA2198‐T8 samples, and its effect on corrosion resistance was investigated and compared with that of a chromate layer formed in a solution with hexavalent chromium ions. The corrosion resistance of BTSE coated samples was evaluated by immersion tests in sodium
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On the origin of surface and interface defects associated with the growth of Al‐coated thermoplastic heterostacks Surf. Interface Anal. (IF 1.665) Pub Date : 2020-11-24 Tommaso Fontanot; Sandro Donato; Luca Brombal; Francesca Di Lillo; Diego Dreossi; Luigi Rigon; Renata Longo; Simone Dal Zilio; Regina Ciancio; M. Del Linz; Sara Paroni; Erik Vesselli
By means of a combined microscopy‐, spectroscopy‐, and tomography‐based approach, we investigated surface and interface defects in metal‐polymer heterostacks. The aim was to characterize both morphological and compositional alterations of the surfaces, originating in the physical vapor deposition (PVD) growth methods adopted in the fabrication process. Synchrotron radiation X‐ray computed tomography
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Part I: Molecular weight characterization of linear polydimethyl siloxanes by secondary ion mass spectrometry Surf. Interface Anal. (IF 1.665) Pub Date : 2020-11-22 Michaeleen L. Pacholski; Paul R. Vlasak
A correlation of SIMS ion intensities to the molecular weight of linear, trimethyl‐terminated polydimethyl siloxane (PDMS) has been developed by normalizing PDMS endgroup‐related signal to backbone‐related signal for a set of well‐characterized polymers with narrow molecular weight distributions. These initial experiments on thick PDMS films illustrate that PDMS molecular weight can be estimated using
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Surface‐sampling mass spectrometry and imaging: Direct analysis of bacterial species Surf. Interface Anal. (IF 1.665) Pub Date : 2020-11-17 Rian L. Griffiths
Surface‐sampling mass spectrometry and imaging techniques offer the opportunity to directly interrogate a wide range of surfaces. Ambient techniques have become popular as samples can be analysed at room conditions with little to no sample preparation. However, more traditional (vacuum based) techniques offer superior spatial resolution imaging. This review aims to offer an overview of the capabilities
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An in situ exploration of subsurface defect migration to a liquid water‐exposed rutile TiO2(110) surface by XPS Surf. Interface Anal. (IF 1.665) Pub Date : 2020-11-16 M. H. Mesbah Ahmed; Robert H. Temperton; James N. O'Shea
The ability of titanium dioixide to split water into OH− and H+ species is heavily dependent on the behaviour of defects in the crystal structure at or near the surface. We present an in situ study of defect migration in rutile TiO2(110) conducted using X‐ray photoelectron spectroscopy (XPS). First, surface and subsurface defects were created in the crystal by argon ion sputtering. Subsequent in situ
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Interrogation of chemical changes on, and through, the bacterial envelope of Escherichia coli FabF mutant using time‐of‐flight secondary ion mass spectrometry Surf. Interface Anal. (IF 1.665) Pub Date : 2020-11-16 Kelly Dimovska Nilsson; Johan Grandén; Anne Farewell; John S. Fletcher
Time‐of‐flight secondary ion mass spectrometry (ToF‐SIMS) using a primary ion beam of (CO2)6k+ was used to analyse chemical changes in the bacterial envelope of a fabF knock‐out Escherichia coli strain. fabF is the gene coding for FabF, the enzyme involved in the elongation of FA(16:1) to FA(18:1) and has been associated with plasmid transfer that can lead to acquired multiantibiotic resistance. Comparison
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Cover Image Surf. Interface Anal. (IF 1.665) Pub Date : 2020-11-13 Emmanuel Nolot; Yann Mazel; Jean‐Paul Barnes; Chiara Sabbione; Gabriele Navarro; Agnes Tempez; Sébastien Legendre
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Cover Image Surf. Interface Anal. (IF 1.665) Pub Date : 2020-11-13 Tatsunori Shibuya; Dai Yoshitomi; Daisuke Satoh; Kazuyuki Sakaue; Masahito Tanaka; Hideyuki Takada; Hiroshi Ogawa; Kenji Torizuka; Yohei Kobayashi; Ryunosuke Kuroda
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Cover Image Surf. Interface Anal. (IF 1.665) Pub Date : 2020-11-13 Leena‐Sisko. Johansson; Joseph M. Campbell; Orlando J. Rojas
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Issue Information Surf. Interface Anal. (IF 1.665) Pub Date : 2020-11-13
No abstract is available for this article.
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The 18th European Conference on Applications of Surface and Interface Analysis Surf. Interface Anal. (IF 1.665) Pub Date : 2020-11-13 Steffen Oswald; John F. Watts; Marie‐Laure Abel
The 18th European Conference on Applications of Surface and Interface Analysis (ECASIA'19) was held in the International Congress Center of Dresden, Germany, from 15 to 20 September 2019. It was the third time ECASIA was organized in Germany after the early beginning of the conference series in Fellbach/Stuttgart (1987) and in Berlin (2003). As hosts, it was a pleasure for us that the International
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The activity and thermal stability of RhOx/CeO2 nanocomposites prepared by radio‐frequency plasma sputtering Surf. Interface Anal. (IF 1.665) Pub Date : 2020-09-28 Lidiya S. Kibis; Alena I. Krotova; Vladimir I. Zaikovskii; Andrei I. Boronin
The model RhOx/CeO2 systems were prepared by radio‐frequency (RF) plasma sputtering of Rh electrode in O2 or Ar/O2 atmosphere. Thermal stability of the systems and their reaction probability towards CO oxidation were studied by X‐ray photoelectron spectroscopy. It was shown that the small oxidized Rh nanoparticles on the CeO2 surface (RhOx/CeO2) obtained by RF sputtering in O2 have spectroscopic characteristics
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Spectral analysis of Sr 3d XPS spectrum in Sr‐containing hydroxyapatite Surf. Interface Anal. (IF 1.665) Pub Date : 2020-09-28 Shiori Komai; Mitsuhiro Hirano; Naofumi Ohtsu
The Sr 3d X‐ray photoelectron spectroscopy (XPS) spectrum of Sr‐containing hydroxyapatite (SHAp) overlaps completely with the P 2p spectrum. Thus, the chemical state identification of Sr in SHAp is a challenging task. In this work, the Sr 3d spectrum was isolated from the overlapping spectra for analyzing the chemical state of Sr using a generic peak‐fitting method. The SHAp layers containing various
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Effects of discharge mode and gas composition for plasma‐hydrophilized titanium surface on hydrophilic sustainability Surf. Interface Anal. (IF 1.665) Pub Date : 2020-09-21 Mitsuhiro Hirano; Misao Yamane; Naofumi Ohtsu
Plasma hydrophilization under various conditions was carried out on Ti substrates to investigate the effect of the applied parameters on the hydrophilic sustainability. The plasma was discharged from gases comprising Ar and/or O2 at various ratios using DC and RF modes. Notable differences in the surface morphology by the plasma conditions was hardly found, while the ratio of hydroxide on the surface
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XPS and AES surface analysis of WC‐Co‐(Cr) cemented carbide after immersion in neutral solution Surf. Interface Anal. (IF 1.665) Pub Date : 2020-09-23 Xiuyu Wei; Peng Jin; Yanping Xia; Jianzhan Long; Weibing Zhang; Tao Xu; Yu Cao
The binder phase Co in WC‐Co cemented carbide is dissolved easily in corrosive media (even in neutral solution), which has limited its application in a wider range. In this paper, the influence of Cr on corrosion resistance of WC‐Co immersed in neutral solution was studied, with a focus on the surface chemistry of the corrosion product. The results show that in neutral solution, the corrosion is mainly
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Mechanical and tribological properties of DLC coatings deposited by plasma‐based ion implantation and deposition method on polyoxymethylene Surf. Interface Anal. (IF 1.665) Pub Date : 2020-10-08 Yuki Hirayama; Morimasa Nakamura; Takashi Matsuoka
Polyoxymethylene (POM, polyacetal) is one of the most popular plastics for machine elements, especially in Japan. However, it is difficult to use it under severe operating conditions such as high speed and high contact pressure. Diamond‐like carbon (DLC) coatings were well known to be tribological and functional coatings. However, both POM and DLC coatings are difficult to adhere them each other. In
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Analysis of the composition of tantalum nitride in CMOS metallization trenches using parallel angle‐resolved XPS Surf. Interface Anal. (IF 1.665) Pub Date : 2020-10-04 Bettina Wehring; Lukas Gerlich; Alireza M. Kia; Marcus Wislicenus; Benjamin Uhlig
We demonstrate the utilization of parallel angle‐resolved X‐ray photoelectron spectroscopy (pAR‐XPS) as a useful tool to analyze ultrathin sputtered tantalum nitride (TaN) thin films in complementary metal‐oxide‐semiconductor (CMOS) trenches. The chemical composition of TaN was estimated by pAR‐XPS using a Theta 300i from Thermo Fischer. An improved lateral resolution was achieved by analyzing periodic
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Evolution of Cu(In,Ga)Se2 surfaces under water immersion monitored by X‐ray photoelectron spectroscopy Surf. Interface Anal. (IF 1.665) Pub Date : 2020-10-12 Solène Béchu; Muriel Bouttemy; Jackie Vigneron; Daniel Lincot; Jean‐François Guillemoles; Arnaud Etcheberry
Cu(In,Ga)Se2 absorbers were immerged in deionized water for different times, and specific chemical evolutions were monitored thanks to X‐ray photoemission spectroscopy. Cu(In,Ga)Se2 related dissolution products were studied in water through induced coupled plasma optical emission spectroscopy. From those analyses, specific surface network disorganization was observed, with Cu migration towards the
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Estimation of band alignment at CdS/Cu2ZnSnS4 hetero‐interface by direct XPS measurements Surf. Interface Anal. (IF 1.665) Pub Date : 2020-09-22 Charif Tamin; Denis Chaumont; Olivier Heintz; Mohamed Adnane
This paper aims to estimate the band alignment to CdS/CZTS hetero‐interface by direct X‐ray photoelectron spectroscopy (XPS) measurements. XPS was used to determinate the valence‐band offset (VBO) directly by determining the valence band positions at the hetero‐interface. The conduction band offset (CBO) value was estimated based on the band gap measurements by UV/Visible spectroscopy and VBO measurements
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Quantitative analysis of calcium and fluorine by high‐sensitivity low‐energy ion scattering: Calcium fluoride Surf. Interface Anal. (IF 1.665) Pub Date : 2020-10-05 Stanislav Průša; Pavel Bábík; Tomáš Šikola; Hidde H. Brongersma
Low‐energy ion scattering (LEIS) probes the atomic composition of the outer surface. Well‐defined reference samples are used for the quantitation. For elements like fluorine and calcium, it is not easy to find suitable, clean, and homogeneous references, since fluorine is a gas and calcium is a very reactive metal. In contrast to surface analytic techniques such as XPS, the extreme surface sensitivity
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Investigation of surface and thermogravimetric characteristics of carbon‐coated iron nanopowder Surf. Interface Anal. (IF 1.665) Pub Date : 2020-09-28 Swathi K. Manchili; Johan Wendel; Yu Cao; Eduard Hryha; Lars Nyborg
Demand for high‐density press and sinter components is increasing day by day. Of the different ways to improve the sinter density, the addition of nanopowder to the conventional micrometer‐sized metal powder is an effective solution. The present investigation is aimed at studying the surface chemistry of iron nanopowder coated with graphitic carbon, which is intended to be mixed with the conventional
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Structural and nanomechanical properties of porous silicon: Cheap substrate for CMOS process industry Surf. Interface Anal. (IF 1.665) Pub Date : 2020-10-04 Yasmina Belaroussi; Gilles Scheen; Abdelhalim A. Saadi; Abdelkader Taibi; Djabar Maafri; Bernard Nysten; Noureddine Gabouze; Jean‐Pierre Raskin
The surface topology of porous silicon (PSi) is a relevant parameter that decides the compatibility of such substrate with CMOS process. Using standard resistivity (1–10 Ω·cm) of Si substrate to fabricate PSi‐S is a low cost solution for the industry. In this paper, through an atomic force microscopy (AFM) analysis, the root mean square (RMS) roughness, the power spectral density and the correlation
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Polydimethylsiloxane–graphene oxide composite improving performance by ion beam irradiation Surf. Interface Anal. (IF 1.665) Pub Date : 2020-10-11 Mariapompea Cutroneo; Vladimír Havránek; Alfio Torrisi; Anna Mackova; Petr Malinsky; Petr Slepicka; Zdenek Sofer; Lorenzo Torrisi
A hybrid film consisting of graphene oxide covered with poly(dimethylsiloxane) was prepared via spin coater and followed by thermal annealing to improve the bond strength of the polymerized systems. Direct patterning on both graphene oxide and hybrid graphene oxide–poly(dimethylsiloxane) foils by ion microbeam was performed to induce localized reduction in the ion irradiated material. It is well established
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Effect of metal ions doping on structural, optical properties and photocatalytic activity of anatase TiO2 thin films Surf. Interface Anal. (IF 1.665) Pub Date : 2020-11-04 Komaraiah Durgam; Radha Eppa; Ramana Reddy M.V.; Sivakumar J; Sayanna R
The metal ion‐doped (Fe3+, Co2+, Ni2+ and Ag+) TiO2 nanocrystalline thin films were spin‐coated on glass substrates. The grazing incidence X‐ray diffractometer (GIXRD), SEM, energy‐dispersive X‐ray Spectroscopy (EDX), Raman, UV–VIS and a fluorescence spectrometer were employed to study the structural, compositional and optical properties of metal‐doped TiO2 films. As revealed by GIXRD, all the metal‐doped
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Synergistic effects of gamma irradiation on the PET surface and heat treatment of hydrotalcite catalyst supported by Pt/TiO2 nanoparticles on PET depolymerization rate Surf. Interface Anal. (IF 1.665) Pub Date : 2020-11-03 Alireza Bahramian
Acquiring new methods to achieve the products with lesser molecular weight associated with minimum energy consumption in poly(ethylene terephthalate) (PET) recycling can improve the glycolysis reaction performance. The synergistic effects of gamma irradiation on the properties of PET wastes and heat treatment on the catalytic activity of novel hydrotalcite supported by 2‐wt% Pt/TiO2 nanoparticles (NPs)
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Modification of structure and surface morphology in various ZnO facets via low fluence gold swift heavy ion irradiation Surf. Interface Anal. (IF 1.665) Pub Date : 2020-10-29 Adéla Jagerová; Petr Malinský; Romana Mikšová; Ondřej Lalik; Mariapompea Cutroneo; Oleksandr Romanenko; Kateřina Szökölová; Zdenek Sofer; Petr Slepička; Jakub Čížek; Anna Macková
The influence of low fluence high‐energy ion irradiation on the modification of the ZnO surface structure and optical properties has been studied. ZnO samples of various orientations, namely, c‐plane (0001), a‐plane (11–20) and m‐plane (10–10), have been implanted with 30‐MeV Au ions with fluences ranging from 5 × 109 to 5 × 1011 cm−2. Rutherford backscattering spectrometry in the channelling mode
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Initial formation kinetics of calcium phosphate on titanium in Hanks' solution characterized using XPS Surf. Interface Anal. (IF 1.665) Pub Date : 2020-10-22 Akari Hiji; Takao Hanawa; Masaya Shimabukuro; Peng Chen; Maki Ashida; Kunio Ishikawa
One cause of the excellent hard‐tissue compatibility of Ti and Ti alloys compared with other metals is their ability to form calcium phosphate in biological environments. This is confirmed by many studies, although the formation mechanism has not been completely elucidated. In this study, to elucidate the initial formation kinetics of calcium phosphate on Ti in the human body, Ti was immersed in a
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Modification of hydroxyl silicates and its improvement on tribological properties of bismaleimides resin Surf. Interface Anal. (IF 1.665) Pub Date : 2020-10-20 Yuan Jia; Zhen Liu; Beibei Li; Ju‐xiang Yang
In order to improve the dispersion and compatibility of the hydroxyl silicates (HNSs) in organic resin matrix, the HNSs were first functionalized by N‐(2‐aminoethyl)‐3‐aminopropyltrimethoxysilane (KH‐792) via a hydrolysis process; thus, the imino and amidogen groups can be grafted on the surface of HNSs (NH2‐HNSs). Fourier transform infrared spectroscopy, scanning electron microscopy, and X‐ray photoelectron
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Investigation of atomic diffusion at Ni/Zr48Cu36Ag8Al8 interfaces in the glass transition temperature Surf. Interface Anal. (IF 1.665) Pub Date : 2020-10-15 Linlin Sun; Jun Wang; Gengsheng Jiao; Ling Huang
Poor plasticity and small dimension are the main disadvantages of metallic glass. Diffusion bonding and composite fabrication between bulk metallic glasses (BMGs) and crystal metal are promising methods of addressing these disadvantages. In this study, the long‐term atomic diffusion behavior in the glass transition temperature (Tg) is investigated to avoid the formation of the crystalline phase at
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First‐principle calculations of CrN(200)/Ni(111) interface: Atomic structure, stability, and electronic properties Surf. Interface Anal. (IF 1.665) Pub Date : 2020-10-15 Zhaolu Zhang; Jiao Chen; Guangyu He; Guanjun Yang
Atomic structure, adhesion energy, and electronic properties of the bonding nature at CrN(200)/Ni(111) interfacial region are studied by first‐principle calculations based on density functional theory (DFT). A new method for building the heterostructure of CrN(200)/Ni(111) is proposed to solve the large lattice mismatching between CrN(200) and Ni(111) slab. Three models (OT, ST, and TL) with different
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Fabrication of biomimetic slippery liquid‐infused porous surface on 5086 aluminum alloy with excellent antifouling performance Surf. Interface Anal. (IF 1.665) Pub Date : 2020-10-12 Zongcheng Yang; Xiaoyan He; Jiangfan Chang; Xiuqin Bai; Pan Cao; Chengqing Yuan
Biofouling triggers extensive research in ship tribology. Antifouling technology has garnered great attention as a solution for biofouling; thus, biomimetic lubricant‐infused surfaces are developed as alternatives to superhydrophobic surfaces. In this study, we developed slippery liquid‐infused porous surfaces (SLIPS) by infusing perfluoropolyether oil into porous anodic aluminum oxide (AAO) surfaces
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A quantitative analysis of AES and XPS specifically applied in adsorption systems at submonolayer regime Surf. Interface Anal. (IF 1.665) Pub Date : 2020-10-12 Dimitrios Vlachos
An analysis of the intensity ratios, adsorbate over substrate and substrate over the clean one, is carried out, treating them as a system of two independent variables. This leads to simple formulas, ready to be applied to the determination of coverage up to the monolayer point, if elemental bulk standards are available. The procedure allows one more parameter to be found out compared with previous
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