Surfaces and Interfaces最新文献_第7页

Strain engineering of epitaxial perovskite-type LaFeO3/ BiFeO3 heterostructures for photoelectrochemical water splitting

IF 5.7 2区材料科学

Surfaces and Interfaces Pub Date : 2025-03-13 DOI: 10.1016/j.surfin.2025.106234

Florin Andrei , Valentin Ion , Ruxandra Birjega , Ioan Ghitiu , Mihai Zamfir , Antoniu Moldovan , Valentin Serban Teodorescu , Maria Dinescu , Ioan-Cezar Marcu , Nicu Doinel Scarisoreanu

{"title":"Strain engineering of epitaxial perovskite-type LaFeO3/ BiFeO3 heterostructures for photoelectrochemical water splitting","authors":"Florin Andrei , Valentin Ion , Ruxandra Birjega , Ioan Ghitiu , Mihai Zamfir , Antoniu Moldovan , Valentin Serban Teodorescu , Maria Dinescu , Ioan-Cezar Marcu , Nicu Doinel Scarisoreanu","doi":"10.1016/j.surfin.2025.106234","DOIUrl":"10.1016/j.surfin.2025.106234","url":null,"abstract":"<div><div>Following the approach of inducing structural constrains for the creation of polar nanodomains/nanoregions in the perovskite thin films, the photoelectrochemical properties of complex heterostructures based on LaFeO<sub>3</sub> and BiFeO<sub>3</sub> materials have been studied in correlation with the imposed structural strain and polarization orientation anisotropy conditions. The LFO/BFO thin film heterostructures have been tested using photoelectrochemical (PEC) technique. The recorded photocurrent values for the heterostructure with the LFO layer on top- LFO/BFO/STON- in the potentiodinamic regime are considerably higher (∼ 1.64 mA/cm<sup>2</sup> at 2 V vs RHE) than those obtained for BFO/LFO/STON heterostructure where the BFO layer is acting as the surface layer (∼ 0.32 mA/cm<sup>2</sup> at 2 V vs RHE). Moreover, the LFO/BFO/STON heterostructure exhibits both photocathodic and photoanodic behavior. The atomic resolution STEM data demonstrate the polarization orientation anisotropy in LFO/BFO/STON heterostructure, due to the cooperative effects of competing surface chemistry and polarization of the LFO/BFO interface over the magnitude and orientation of the Fe<sup>3+</sup> cations displacement within the La<sup>3+</sup> cages. For the BFO/LFO/STON heterostructure however, robust single-oriented domains with large Fe<sup>3+</sup> cations displacement characteristics for long-range ferroelectric order, has been revealed also. Taking into account the possibility to control the PEC features such as charge distribution/transport characteristics for both photocathodic/photoanodic reactions, as well as the control of the polarization direction without a pre-poling process, this work is of relevance for applications where the use of a top electrode is not possible.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"62 ","pages":"Article 106234"},"PeriodicalIF":5.7,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced visible light responsive piezoelectric photocatalysis based on (Na, K)NbO3 nanostructures for effective organic pollutant degradation

IF 5.7 2区材料科学

Surfaces and Interfaces Pub Date : 2025-03-13 DOI: 10.1016/j.surfin.2025.106237

A Matharasi , A Surya Prabha , V Vinisha , G Hannah Priya , J Jobisha , J Arul Martin Mani , J Mary Linet

{"title":"Enhanced visible light responsive piezoelectric photocatalysis based on (Na, K)NbO3 nanostructures for effective organic pollutant degradation","authors":"A Matharasi , A Surya Prabha , V Vinisha , G Hannah Priya , J Jobisha , J Arul Martin Mani , J Mary Linet","doi":"10.1016/j.surfin.2025.106237","DOIUrl":"10.1016/j.surfin.2025.106237","url":null,"abstract":"<div><div>Incorporation of the piezoelectric effect into photocatalysis provides a built-in polarization field and has the potential to effectively separate the photo-generated electron-hole pairs, which can greatly enhance the degradation performance of the organic pollutants. For this reason, the search for lead-free ferroelectric materials that can combine photocatalytic and piezocatalytic capabilities is highly demanded. In this work, a series of (Na, K)NbO<sub>3</sub> with various Na<sup>+</sup>/K<sup>+</sup> ratios were fabricated by a simple hydrothermal method. When the NaOH to KOH ratio was 50/50, the Na<sub>0.5</sub>K<sub>0.5</sub>NbO<sub>3</sub> nanostructure displayed morphotropic phase boundary separating orthorhombic and monoclinic phases. Under the co-excitation of ultrasonic vibration and visible light irradiation, the Na<sub>0.5</sub>K<sub>0.5</sub>NbO<sub>3</sub> sample exhibited an excellent ability for the degradation of Eosin Yellow (EY) dye, which can degrade the dye completely within 5 h, which was 3.67 times and 1.52 times faster than that of piezocatalysis under ultrasonication and photocatalysis under light illumination alone. These findings offer promising implications for the advancement of piezo-photocatalysts that employ tiny mechanical vibrations and visible light irradiation to efficiently degrade organic contaminants.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"62 ","pages":"Article 106237"},"PeriodicalIF":5.7,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Copper-functionalized hydroxyapatite nanoparticles to counteract fungal infections

IF 5.7 2区材料科学

Surfaces and Interfaces Pub Date : 2025-03-13 DOI: 10.1016/j.surfin.2025.106179

Guillermo Escolano-Casado , Camilla Fusacchia , Lorenzo Degli Esposti , Margherita Cacaci , Damiano Squitieri , Francesca Bugli , Michele Iafisco , Lorenzo Mino

{"title":"Copper-functionalized hydroxyapatite nanoparticles to counteract fungal infections","authors":"Guillermo Escolano-Casado , Camilla Fusacchia , Lorenzo Degli Esposti , Margherita Cacaci , Damiano Squitieri , Francesca Bugli , Michele Iafisco , Lorenzo Mino","doi":"10.1016/j.surfin.2025.106179","DOIUrl":"10.1016/j.surfin.2025.106179","url":null,"abstract":"<div><div>Drug-resistant fungal pathogens pose an increasing threat to human health. Nanoparticles are promising tools for treating and limiting fungal resistance due to their ability to attack microorganisms via multiple mechanisms. In this work, hydroxyapatite (HA) nanoparticles were synthesized and functionalized with copper by ionic exchange at different solution concentrations (from 0.01 to 0.2 M). The physico-chemical properties of the samples were studied using low-temperature N<sub>2</sub> adsorption volumetry, elemental analysis, X-ray diffraction, electron microscopy and IR spectroscopy of adsorbed CO. All the obtained HA particles were poorly crystalline, elongated in the <em>c</em>-axis direction, and had a high specific surface area (<em>ca.</em> 200 m<sup>2</sup>/g). Copper was incorporated into HA surface layers with a Cu<sup>2+</sup> doping content proportional to the initial concentration, reaching a maximum value of 14 %wt. The antifungal activity of the samples was tested against drug-resistant clinical isolates of <em>Cryptococcus neoformans</em> and several <em>Candida</em> species strains (<em>C. parapsilosis, C. krusei, C. tropicalis, C. albicans, C. glabrata, C. auris</em>). Minimal inhibitory concentrations and fungal growth curves were determined. Cytocompatibility evaluation showed that both undoped and Cu-doped HA samples were not toxic to mammalian cells. The Cu-containing HA samples demonstrated potential as effective and safe antifungal agents with wide-spectrum activity, representing a promising candidate for therapeutic approaches against diverse fungal infections.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"62 ","pages":"Article 106179"},"PeriodicalIF":5.7,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gold nanocage-carbon nanodot composites activate ornidazole against biofilm infections through modulating the hypoxic microenvironment

IF 5.7 2区材料科学

Surfaces and Interfaces Pub Date : 2025-03-13 DOI: 10.1016/j.surfin.2025.106222

Zekun Wang , Yingying Li , Hanqing Zhao , Fangyuan Chen , Wenjun Shao , Man Jiang , Lu Zhang , Tao Ma , Qingqing Wang

{"title":"Gold nanocage-carbon nanodot composites activate ornidazole against biofilm infections through modulating the hypoxic microenvironment","authors":"Zekun Wang , Yingying Li , Hanqing Zhao , Fangyuan Chen , Wenjun Shao , Man Jiang , Lu Zhang , Tao Ma , Qingqing Wang","doi":"10.1016/j.surfin.2025.106222","DOIUrl":"10.1016/j.surfin.2025.106222","url":null,"abstract":"<div><div>Bacteria within biofilm microenvironments experience distinct metabolic conditions that contribute to antibiotic resistance, posing a significant risk to human health. Altering these biofilm conditions can impact bacterial metabolism and potentially restore their sensitivity to antibiotics. In this context, a composite drug delivery system, referred to as OACC, was developed. This system integrates Ce6-modified carbon nanodots (CCe6) and gold nanocages for targeted delivery of ornidazole (ONZ) to biofilms. The mechanism study results indicated that OACC not only possesses photodynamic (PDT) and photothermal (PTT) antibacterial activity but also exacerbates the hypoxic microenvironment of biofilms, promoting bacteria to produce nitroreductase through anaerobic metabolic pathways, thereby activating the antibacterial activity of ONZ. Therefore, OACC exhibited extremely strong antibacterial (99.9 %) and anti-biofilm (96.1 %) activities. In addition, OACC rapidly cleared biofilms from infected wounds in diabetic mice, recruited M2-like macrophages to secrete anti-inflammatory factors, and induced high expression of hypoxia-inducible factor-1α (HIF-1α), vascular endothelial growth factor (VEGF), and platelet endothelial cell adhesion molecule-1 (CD31), which promoted vascular remodeling, collagen deposition, and wound healing in the infected wounds. The approach of combining PTT, and PDT, and intensifying the biofilm's hypoxic environment to enhance antibiotic efficacy offers an innovative strategy for repurposing antibiotics and addressing biofilm infections.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"62 ","pages":"Article 106222"},"PeriodicalIF":5.7,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Growth mechanisms and material properties of boron-doped single crystal diamond synthesized by HFCVD

IF 5.7 2区材料科学

Surfaces and Interfaces Pub Date : 2025-03-12 DOI: 10.1016/j.surfin.2025.106217

Ming Lu , Chuan Zhang , Fanghong Sun

{"title":"Growth mechanisms and material properties of boron-doped single crystal diamond synthesized by HFCVD","authors":"Ming Lu , Chuan Zhang , Fanghong Sun","doi":"10.1016/j.surfin.2025.106217","DOIUrl":"10.1016/j.surfin.2025.106217","url":null,"abstract":"<div><div>The synthesis of boron(B)-doped single crystal diamond (SCD) using the hot-filament chemical vapor deposition (HFCVD) method has garnered significant attention due to its promising applications. This study investigates the growth mechanism and performance characterization of HFCVD-synthesized intrinsic and B-doped SCD. Density functional theory (DFT) calculations were employed to analyze the adsorption processes of hydrogen, carbon-based groups, B atoms, and acetone molecules on the surfaces of undoped and B-doped diamond supercells. The results demonstrate that B atoms replace carbon atoms in the diamond lattice, stabilizing the adsorption of hydrocarbon species and promoting diamond growth without significantly altering the lattice structure. Additionally, B-doped SCDs were synthesized using acetone and trimethyl borate as liquid carbon precursors under HFCVD environment. Increasing B doping concentration enhanced the epitaxial growth rate but also increased surface roughness and induced spherical protrusions. Excessive doping led to lattice distortion and tensile stress. These findings provide valuable insights into optimizing B-doped SCD growth processes for electronic and optoelectronic applications.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"62 ","pages":"Article 106217"},"PeriodicalIF":5.7,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Decoupling fracture energy from crack area via surface patterning

IF 5.7 2区材料科学

Surfaces and Interfaces Pub Date : 2025-03-12 DOI: 10.1016/j.surfin.2025.106066

Ping Hu , Shuangshung Li , Michal K. Budzik

{"title":"Decoupling fracture energy from crack area via surface patterning","authors":"Ping Hu , Shuangshung Li , Michal K. Budzik","doi":"10.1016/j.surfin.2025.106066","DOIUrl":"10.1016/j.surfin.2025.106066","url":null,"abstract":"<div><div>This study investigates whether surface patterning can decouple fracture energy from treated area fractions and examines the relationship between surface wettability and fracture energy. By using a nanosecond pulsed laser to create square-shaped patterns on AA7075-T6 aluminum surfaces, we explore the impact of pattern size on wettability and fracture behavior, offering new insights into optimizing surface treatments for enhanced material performance. The pattern sizes ranged from the micrometer to millimeter scale, with reference samples, including fully untreated and fully laser-treated surfaces, also prepared and tested.</div><div>Wettability assessments revealed that increasing the laser-treated area fraction significantly enhanced wetting. Distinct differences between micro- and larger patterns were observed, with larger patterns altering the wetting area’s shape and reducing the effective contact angle. These findings highlighted a direct link between pattern geometry and wettability, which is important for predicting and controlling fracture energy.</div><div>Laser treatment profoundly impacted fracture energy and failure modes of epoxy bonded aluminum adherends. Untreated samples exhibited adhesive failure at low fracture energy values, whereas fully treated samples showed cohesive failure with fracture energy nine times higher. Intermediate cases displayed a mix of the two failure modes. Theoretical and numerical models were developed to predict and interpret these experimental results, highlighting that surface pattern size significantly influences adhesion and fracture properties.</div><div>The results suggest that fracture energy cannot be uniquely predicted by the treated area fraction alone, underscoring the potential of precise surface patterning to control crack growth resistance and suggesting a relationship between wettability and fracture energy.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"62 ","pages":"Article 106066"},"PeriodicalIF":5.7,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The influence of morphologies on the physicochemical properties and Fischer-Tropsch synthesis performance of iron catalysts

IF 5.7 2区材料科学

Surfaces and Interfaces Pub Date : 2025-03-12 DOI: 10.1016/j.surfin.2025.106218

Shuai Zhang , Jianhua Fan , Xuejian Zhang , Kangzhou Wang , Caihu Li , Ruilong Li , Xin Wang , Qingxiang Ma , Tian-Sheng Zhao , Xinhua Gao , Jianli Zhang

{"title":"The influence of morphologies on the physicochemical properties and Fischer-Tropsch synthesis performance of iron catalysts","authors":"Shuai Zhang , Jianhua Fan , Xuejian Zhang , Kangzhou Wang , Caihu Li , Ruilong Li , Xin Wang , Qingxiang Ma , Tian-Sheng Zhao , Xinhua Gao , Jianli Zhang","doi":"10.1016/j.surfin.2025.106218","DOIUrl":"10.1016/j.surfin.2025.106218","url":null,"abstract":"<div><div>Research on Fe-based catalysts for Fischer–Tropsch synthesis (FTS) has attracted significant attention. Various morphologies of Fe usually expose different crystal planes, affecting the reduction, carburization, and reaction behaviors in FTS. In this study, six different morphologies of Fe<sub>2</sub>O<sub>3</sub> catalysts, which include spindle, spheres, long-hexagonal columns, cubes, short-hexagonal columns, and flower-like were prepared. The impact of morphology on phase structural transformations, reduction behaviors, H<sub>2</sub> and CO adsorption, and FTS performance was investigated using a suite of characterization techniques, including XRD, SEM, TEM, in situ XRD, H<sub>2</sub>-TPR, H<sub>2</sub>-TPD, CO-TPD, and DFT. The results indicate that the six catalysts have regular morphologies, clear lattice fringes, and high crystallinity. The spindle catalyst is more easily reduced and exhibits better adsorption for CO and H<sub>2</sub>, while the cubic catalyst is more difficult to reduce and shows weaker adsorption for CO and H<sub>2</sub>. DFT experiments suggest that CO readily dissociates on the (125) crystal plane of the spindle catalyst to form CO* (-0.77 eV), whereas on the (024) crystal plane of the cube catalyst, it dissociates into C* and O* (1.65 eV). The FTS catalytic performance is consistent with the characterization, with the spindle-shaped catalyst showing an activity of 95.35 %, and an activity of 20.29 % on cubic catalyst.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"62 ","pages":"Article 106218"},"PeriodicalIF":5.7,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Polyvinyl alcohol–reinforced silk nanofiber/MXene composite aerogel as wearable sensors for detecting human motion 聚乙烯醇增强型丝纳米纤维/MXene 复合气凝胶作为用于检测人体运动的可穿戴传感器

IF 5.7 2区材料科学

Surfaces and Interfaces Pub Date : 2025-03-12 DOI: 10.1016/j.surfin.2025.106220

Jie Chen , Zhen-Zhen Lu , Jing Jin , Dong-Yang Zhang , Tao Chen , Wei-Guo Zhao , Xiao-Hui Yao

{"title":"Polyvinyl alcohol–reinforced silk nanofiber/MXene composite aerogel as wearable sensors for detecting human motion","authors":"Jie Chen , Zhen-Zhen Lu , Jing Jin , Dong-Yang Zhang , Tao Chen , Wei-Guo Zhao , Xiao-Hui Yao","doi":"10.1016/j.surfin.2025.106220","DOIUrl":"10.1016/j.surfin.2025.106220","url":null,"abstract":"<div><div>Flexible pressure sensors are known for their excellent comprehensive performance, making them suitable for a wide range of applications, including in human–machine interfaces, health monitoring, motion detection, wearable electronics, medical devices, and soft robotics. However, the preparation of silk nanofibers (SNFs)-based aerogel sensors with optimal resilience remains challenging. Herein, the SNF/ polyvinyl alcohol (PVA)/MXene composite aerogel was prepared via freeze-drying using SNF, MXene and PVA as raw materials. In this study, PVA was innovatively used as a binder to connect dispersed SNFs, which improved the resilience and mechanical properties of aerogel. The resulting composite aerogel can function as a pressure sensor that exhibits excellent efficacy owing to the synergies among its various components, achieving an impressive gauge factor of 24.61 at a compression strain of 40 %–50 %. The composite aerogel–based sensors also exhibited a rapid response time (load 100 ms, recovery 200 ms), and good stability (1000 cycles). They demonstrated a quick response to pressure and strain signals, enabling them to accurately monitor various human activities such as sound detection, wrist and finger movements, and knee bending.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"62 ","pages":"Article 106220"},"PeriodicalIF":5.7,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In-situ preparation and characterization of defect-free topological insulator surfaces 原位制备和表征无缺陷拓扑绝缘体表面

IF 5.7 2区材料科学

Surfaces and Interfaces Pub Date : 2025-03-12 DOI: 10.1016/j.surfin.2025.106171

Shreyashi Sinha, Sujit Manna

{"title":"In-situ preparation and characterization of defect-free topological insulator surfaces","authors":"Shreyashi Sinha, Sujit Manna","doi":"10.1016/j.surfin.2025.106171","DOIUrl":"10.1016/j.surfin.2025.106171","url":null,"abstract":"<div><div>Atomically clean and defect-free surface of topological insulators (TI) are essential for reliable quantum application such as the quantum Hall effect, topological superconductivity. We report an alternative and efficient method for preparing clean, defect-free and atomically flat surface of topological insulators compared to conventional <em>in-situ</em> cleaving of single crystals. Scanning tunneling microscopy (STM) measurements reveal that <em>in-vacuo</em> cleaving produces a smooth surface with large terraces but results in atomic native surface defects. Over time, surface contamination roughens the surface and repeated cleaving becomes impractical for thin samples. Argon ion bombardment followed by <em>in-situ</em> e-beam annealing effectively restored a clean surface with fewer defects, eliminating the need of removing the sample from the vacuum for fresh cleaving. Atomic-resolved imaging and spectroscopic measurements revealed detailed surface structures, defect geometries and local density of states for TI (Bi<sub>0.1</sub>Sb<sub>0.9</sub>)<sub>2</sub>Te<sub>3</sub>(0001) surface. With further optimization of the e-beam annealing parameters, a completely defect-free pristine surface was obtained as evidenced by spatially resolved differential conductance (dI/dU) measurements. We successfully extended this method to prepare clean defect-free surface of SnTe(001), a pristine topological crystalline insulator. It provides strong evidence to remove surface contaminants and imperfections, thereby ensuring its potential for broad application in the preparation of various 2D materials.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"62 ","pages":"Article 106171"},"PeriodicalIF":5.7,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evolution of the Zr-Cr eutectic structure and its effect on the oxidation mechanism of Cr-coated Zr alloy at 1350 °C

IF 5.7 2区材料科学

Surfaces and Interfaces Pub Date : 2025-03-12 DOI: 10.1016/j.surfin.2025.106221

Shuai Wang, Baiming Yao, Weidong Zhai, Ziyi Li, Jishen Jiang, Xianfeng Ma

引用次数: 0