Ali Reza Sarikhani, Mohammad Reza Salehi, Seyedeh Leila Mortazavifar, Mojtaba Shahraki, Ebrahim Abiri
{"title":"Design and optimization of hexagonal tungsten ring metasurface perfect absorbers with circuit model","authors":"Ali Reza Sarikhani, Mohammad Reza Salehi, Seyedeh Leila Mortazavifar, Mojtaba Shahraki, Ebrahim Abiri","doi":"10.1002/sia.7346","DOIUrl":"https://doi.org/10.1002/sia.7346","url":null,"abstract":"In this paper, a perfect absorber (PA) based on tungsten is proposed to include hexagonal‐shaped metasurface absorbers with varying hole sizes ranging from quadrangular to circular, allowing them to cover a wide wavelength spectrum. The study investigates the effects of various parameters, including the number of sides of the inner hole, on the absorber's performance and identifies the most suitable absorber by introducing an equivalent circuit. The outcomes of full‐wave numerical simulations primarily based on the finite element method (FEM) highly correspond to the final results of the circuit model. Additionally, the circuit model significantly reduces computation time and requires less storage compared with full‐wave simulations. The results show that the hexagonal‐square metasurface absorber achieves exceptional absorption rates, with an average of 99.9% in the 431 to 532 nm wavelength range and over 90% in the 300 to 915 nm range. The hexagonal‐hexagonal metasurface absorber also exhibits high absorption rates, with an average of over 99% in the 431 to 518 nm and 700 to 780 nm ranges, and over 90% in the 300 to 940 nm range. The absorption performance of the proposed hexagonal‐circle metasurface absorber is also remarkable, with an absorption value of over 99% in the 670 to 771 nm range and above 90% in the 365 to 991 nm range. These models can be utilized to design and simulate other subwavelength absorbers in a broad frequency range, including terahertz and visible light, making them suitable for various applications.","PeriodicalId":22062,"journal":{"name":"Surface and Interface Analysis","volume":"28 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141969366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jennifer Stefani Weber, Michael Cristian Goldbeck, Vanessa Piroli, Carla Daniela Boeira, Bruna Louise Perotti, Newton Kiyoshi Fukumasu, Fernando Alvarez, Alexandre Fassini Michels, Carlos Alejandro Figueroa
{"title":"Influence of the base pressure in deposition of a‐SiCx interlayers for adhesion of Diamond‐Like Carbon on metallic alloy","authors":"Jennifer Stefani Weber, Michael Cristian Goldbeck, Vanessa Piroli, Carla Daniela Boeira, Bruna Louise Perotti, Newton Kiyoshi Fukumasu, Fernando Alvarez, Alexandre Fassini Michels, Carlos Alejandro Figueroa","doi":"10.1002/sia.7345","DOIUrl":"https://doi.org/10.1002/sia.7345","url":null,"abstract":"Diamond‐like carbon (DLC) is an amorphous material widely used in industrial applications due to its chemical, mechanical, and tribological properties and, also, for decorative purposes. However, its low adhesion to ferrous alloys reduces its effectiveness in certain applications, necessitating the use of adhesion interlayers to reduce stresses at the interfaces and enhance the density of strong bonds. In this context, the factors that promote good adhesion in this system and specify the parameters must be understood in detail. Thus, the present study aims to assess the influence of the base pressure on the deposition of an amorphous silicon carbide adhesion interlayer between DLC coating and a ferrous alloy substrate. Microstructural, physicochemical, morphological, and mechanotribological analyses were conducted to understand the adhesion behavior in terms of structural and chemical aspects. In addition to the influence of the interlayer thickness, the elemental Si/C ratios and the relative oxygen content have an impact on the maximum load supported by the coatings, as well as the different delamination mechanisms generated in adhesion tests.","PeriodicalId":22062,"journal":{"name":"Surface and Interface Analysis","volume":"71 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141784866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"X‐ray standing wave assisted XANES for depth dependent chemical state analysis of Cr in Cr2O3/Cr bilayer structure","authors":"Ayushi Trivedi, Md. Akhlak Alam, Ajay Khooha, Rajnish Dhawan, Rajendra Kumar Sharma, Shilpa Tripathi, Manoj Kumar Tiwari","doi":"10.1002/sia.7342","DOIUrl":"https://doi.org/10.1002/sia.7342","url":null,"abstract":"We report the detailed depth‐dependent structural and chemical analysis of the Cr<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub>/Cr bilayer structure deposited on Si ˂100˃ substrate. The non‐destructive simultaneous X‐ray reflectivity and grazing incidence X‐ray fluorescence measurements were used for this purpose. Corresponding variation in the chemical state of Cr atoms as a function of depth has been studied using X‐ray standing wave (XSW) assisted X‐ray absorption near edge structure (XANES) measurements. Various oxidation states of Cr atoms present in the Cr<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub>/Cr bilayer structure were determined using X‐ray photoelectron spectroscopy (XPS). Depth‐resolved XANES measurements confirmed the presence of chromium oxide (Cr<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub>) and hydroxide (Cr (OH)<jats:sub>3</jats:sub>) at the top surface of the Cr<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub>/Cr bilayer structure. The results also reveal the presence of metallic Cr along with its compounds Cr<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub> and Cr (OH)<jats:sub>3</jats:sub> at the interface medium, showing significant mixing between the Cr<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub> and Cr layers. Our results clearly demonstrate that the XSW assisted XANES technique is extremely efficient for determining the variation of chemical states at the surface, interface, and different depths of a thin film structure. Such types of analysis are particularly useful for differentiating the presence of a metal from its own oxides, even at higher depths inside a thin film medium.","PeriodicalId":22062,"journal":{"name":"Surface and Interface Analysis","volume":"15 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141745559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jonh Yago Erikson Santos, Iago Lemos Dias, Ronaldo Lima Rezende, Givanilson Brito de Oliveira, Pedro Cardoso da Silva Neto, Fabiana Magalhães Teixeira Mendes, Roberto Hübler, Eduardo Kirinus Tentardini
{"title":"Influence of aluminum addition on structure, hardness, and oxidation resistance of Ta1−xAlxN thin films","authors":"Jonh Yago Erikson Santos, Iago Lemos Dias, Ronaldo Lima Rezende, Givanilson Brito de Oliveira, Pedro Cardoso da Silva Neto, Fabiana Magalhães Teixeira Mendes, Roberto Hübler, Eduardo Kirinus Tentardini","doi":"10.1002/sia.7343","DOIUrl":"https://doi.org/10.1002/sia.7343","url":null,"abstract":"Ta<jats:sub>1−x</jats:sub>Al<jats:sub>x</jats:sub>N thin films with 5, 15, and 40 at.% Al addition were co‐deposited by reactive magnetron sputtering and characterized by Rutherford backscattering spectroscopy (RBS), grazing angle X‐ray diffraction (GAXRD), X‐ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), nanohardness, and oxidation tests. GAXRD and XPS analyses showed, regardless of the % Al added, the non‐existence of ternary nitride Ta<jats:sub>1−x</jats:sub>Al<jats:sub>x</jats:sub>N, but always as individual binary nitrides, TaN and AlN. Sample TaAlN_15 obtained the highest hardness and H<jats:sup>3</jats:sup>/E<jats:sup>2</jats:sup> values, possibly due to the AlN grains presence, which were efficient in distorting the TaN lattice. All samples failed oxidation tests at 873 K, showing that the Al addition was not efficient in improving this property for tantalum aluminum nitride thin films.","PeriodicalId":22062,"journal":{"name":"Surface and Interface Analysis","volume":"6 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141717867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Depth profile study of LaAl1‐xCrxO3/SrTiO3 (x = 0, 0.2, 0.6, and 1) using time of flight secondary ion mass spectrometry (TOF‐SIMS)","authors":"Manas Kumar Dalai, Gupteswar Samal, Trupti R. Das, Pramod Kumar, Geetanjali Sehgal, Anjana Dogra","doi":"10.1002/sia.7341","DOIUrl":"https://doi.org/10.1002/sia.7341","url":null,"abstract":"The conducting two‐dimensional electron gas (2DEG) behavior in LaAlO<jats:sub>3</jats:sub> (LAO)/SrTiO<jats:sub>3</jats:sub> (STO) and their associated mechanisms from various aspects have brought tremendous attention in the concerned area of research. To correlate the 2DEG behavior with their compositions, we have performed time of flight secondary ion mass spectrometry (TOF‐SIMS) depth profile analysis of thin films of Cr‐doped LAO/STO system as LaAl<jats:sub>1‐x</jats:sub>Cr<jats:sub>x</jats:sub>O<jats:sub>3</jats:sub> (<jats:italic>x</jats:italic> = 0, 0.2, 0.6 and 1) deposited over TiO<jats:sub>2</jats:sub> terminated STO substrate, which includes two parent compounds LAO/STO (metallic) and LCO/STO (insulating). The uniform decrease of La and Al concentration at the interface of LAO/STO (metallic) system and in the contrary the nonuniformity of La and Cr concentration in LCO/STO (insulating) system have been highlighted. The uniform variation of ionic concentration at the interface of LAO/STO may increase the career concentrations to make the system metallic. The upward and downward diffusion at the interfaces of intermediate compositions varies differently from their parent ones due to the mixing of Al and Cr. Our results may help to understand the conducting nature of LAO/STO system for future developments and applications in such system.","PeriodicalId":22062,"journal":{"name":"Surface and Interface Analysis","volume":"135 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141571263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alberto Herrera‐Gomez, David J. H. Cant, Thierry Conard, Olivier Renault, Matthew R. Linford, Joshua W. Pinder, Jeff Fenton, Donald R. Baer
{"title":"New challenges associated with hard X‐ray photoelectron spectroscopy (report on the 2023 ASTM E42‐ASSD AVS workshop)","authors":"Alberto Herrera‐Gomez, David J. H. Cant, Thierry Conard, Olivier Renault, Matthew R. Linford, Joshua W. Pinder, Jeff Fenton, Donald R. Baer","doi":"10.1002/sia.7340","DOIUrl":"https://doi.org/10.1002/sia.7340","url":null,"abstract":"In contrast to traditional X‐ray photoelectron spectroscopy (XPS), hard X‐ray photoelectron spectroscopy (HAXPES) can provide information from deeper within a sample while maintaining chemical resolution. However, working with higher energy X‐rays introduces a series of new or different issues ranging from energy calibration to factors associated with quantitative analysis. As part of the efforts to identify and increase community awareness about these issues, a workshop was held to review HAXPES metrology challenges with the perspective of converting it into a quantitative technique. A summary is hereby given of this workshop, which was entitled “What New Challenges Come with the Capabilities of HAXPES?” It was held in Portland, OR, USA, on November 7, 2023, and was primarily sponsored by the ASTM E42 Committee and the Applied Surface Science Division of the American Vacuum Society. This report contains summaries of the presentations and discussions at this workshop regarding the current open problems in HAXPES metrology. There were 20 participants at the workshop.","PeriodicalId":22062,"journal":{"name":"Surface and Interface Analysis","volume":"75 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141528834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The effect of CNT grafting on the mechanical properties of the UHMWPE fiber/HDPE composite","authors":"Li Jian, Xu Gaofeng","doi":"10.1002/sia.7339","DOIUrl":"https://doi.org/10.1002/sia.7339","url":null,"abstract":"In order to improve the mechanical properties of the ultra‐high molecular weight polyethylene (UHMWPE) fiber‐reinforced high‐density polyethylene (HDPE) composite, carbon nanotube (CNT) was grafted on the UHMWPE fiber. The UHMWPE fiber/HDPE composite was prepared by injection molding process, and the effects of CNT contents on the mechanical properties of composite materials were studied. The results show that the mass fraction of CNT will significantly affect the mechanical properties of the composite. When the CNT content is 4 wt%, the tensile strength, tensile modulus, flexural strength, flexural modulus, and impact strength of the UHMWPE fiber/treated CNT/HDPE composite increased compared to the UHMWPE fiber/CNT/HDPE composite and UHMWPE fiber/HDPE composite. When the CNT content is 4 wt%, the above‐mentioned performance is the best. Pull‐out and fracture, bridging effect, and crack deflection effect are the main mechanisms of CNTs in UHMWPE fiber/HDPE composites. This study provides new insights into the interface design of UHMWPE fiber/HDPE composites and paves the way for their further development.","PeriodicalId":22062,"journal":{"name":"Surface and Interface Analysis","volume":"68 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141501709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vincent Fernandez, Neal Fairley, David Morgan, Pascal Bargiela, Jonas Baltrusaitis
{"title":"Surface science insight note: Imaging X‐ray photoelectron spectroscopy","authors":"Vincent Fernandez, Neal Fairley, David Morgan, Pascal Bargiela, Jonas Baltrusaitis","doi":"10.1002/sia.7337","DOIUrl":"https://doi.org/10.1002/sia.7337","url":null,"abstract":"Quantification of X‐ray photoelectron spectroscopy (XPS) data is often limited by the heterogeneous nature of the material surface. However, it is often the case that heterogeneous material contains areas within the analyzed area that are effectively homogeneous. In this <jats:italic>Insight</jats:italic> note, concepts, and methods used to analyze both XPS data are presented to extract both spatial and spectral information from heterogeneous surfaces. These concepts and methods are applied to a specific material surface that contains three chemical compounds separated spatially. The analysis entails converting XPS image data to spectral data and is designed to highlight the potential of XPS imaging in revealing compositional information correlation with spatial information. Properties of algorithms used to evaluate XPS images and spectra are described to outline their application to image data. A case study of an imaging XPS data set is presented that demonstrates how poor signal‐to‐noise images, where the signal is recorded for 4 s per image, are still open to analysis yielding useful information. Ultimately, the methods presented here will aid in interpreting complex XPS data obtained from spatially complex materials often obtained during extensive cycling, such as conventional or electrocatalysts.","PeriodicalId":22062,"journal":{"name":"Surface and Interface Analysis","volume":"43 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141198508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Studying quantum effects of fine scaling on the buckling behavior of CNTs under torsional loading using the density functional theory and molecular mechanics approach","authors":"Mahdi Mirnezhad, Reza Ansari, Seyed Reza Falahatgar, Peyman Aghdasi","doi":"10.1002/sia.7336","DOIUrl":"https://doi.org/10.1002/sia.7336","url":null,"abstract":"In this study, we introduce a comprehensive investigation into the buckling behavior of carbon nanotubes (CNTs) using a combined approach of quantum mechanics and molecular mechanics methods. A novel aspect of our research lies in the exploration of the quantum effects of fine scaling on the buckling behavior of finite‐length nanotubes across various dimensions and chiralities. Specifically, we analyze the critical buckling strain variations in CNTs with distinct lengths, diameters, and chiralities, revealing pronounced differences influenced by atomic arrangement and the type of structure used in nanotube construction. Our findings elucidate that at smaller dimensions, nanotubes exhibit a higher critical buckling strain than other chiralities, while zigzag atomic arrangements demonstrate greater resistance to torsional loading at larger diameters. Additionally, we compare the buckling behavior of nanotubes obtained by wrapping armchair and zigzag nanosheets, highlighting differential resistance trends. This research not only underscores the critical role of quantum effects in determining nanotube buckling but also provides valuable insights into the nuanced influences of atomic arrangement and nanosheet type on the mechanical properties of CNTs. Thus, our work contributes a novel perspective to the field, bridging the gap between quantum mechanics and the mechanical behavior of nanostructures, which has significant implications for the design and application of nanoscale materials","PeriodicalId":22062,"journal":{"name":"Surface and Interface Analysis","volume":"41 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141195493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Humic acid as eco‐friendly corrosion inhibitor for EH40 ship plate steel","authors":"Sizhu Wang, Zhipeng Liang, Yiyong Wang, Hui Jin, Shengli Li, Rui Guan","doi":"10.1002/sia.7335","DOIUrl":"https://doi.org/10.1002/sia.7335","url":null,"abstract":"In this study, a new type of green corrosion inhibitor, namely, sodium humate (SH), was extracted from humus soil, which is a natural humus plant, by dissolution‐neutralization, and then used for corrosion inhibition of low carbon steel in seawater. The corrosion inhibition performance of SH on low carbon steel EH40 in seawater was tested by weight loss method and electrochemical technology. The surface and corrosion products of low carbon steel were observed and analyzed by scanning electron microscope (SEM), atomic force microscope (AFM), contact angle and X‐ray photoelectron spectroscopy (XPS). The results show that SH is a mixed corrosion inhibitor, and the optimum concentration is 2 g L<jats:sup>−1</jats:sup>. At this concentration, the inhibition rate can reach 93.6%. It mainly affects the semi‐reaction of cathodic corrosion. By forming a corrosion protection layer with uniform adsorption on the surface of EH40 steel, EH40 steel becomes more resistant to seawater corrosion.","PeriodicalId":22062,"journal":{"name":"Surface and Interface Analysis","volume":"160 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141147289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}