Journal of Science: Advanced Materials and Devices最新文献

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Probing the potential of surface-engineered titanium filler membranes for produced water treatment 探讨表面工程钛填料膜用于采出水处理的潜力
IF 6.7 3区 材料科学
Journal of Science: Advanced Materials and Devices Pub Date : 2025-06-07 DOI: 10.1016/j.jsamd.2025.100922
Nadia Hartini Suhaimi , Norwahyu Jusoh , Nur Asyraf Md Akhir , Boon Kar Yap , Muhammad Saqib Nawaz , Noreddine Ghaffour
{"title":"Probing the potential of surface-engineered titanium filler membranes for produced water treatment","authors":"Nadia Hartini Suhaimi ,&nbsp;Norwahyu Jusoh ,&nbsp;Nur Asyraf Md Akhir ,&nbsp;Boon Kar Yap ,&nbsp;Muhammad Saqib Nawaz ,&nbsp;Noreddine Ghaffour","doi":"10.1016/j.jsamd.2025.100922","DOIUrl":"10.1016/j.jsamd.2025.100922","url":null,"abstract":"<div><div>The treatment and reuse of produced water, which emerges with crude oil during extraction in oil and gas operations, reduces dependency on freshwater. The treated produced water can subsequently be used in water flooding activity for enhanced oil recovery, extending the life of the oilfield. Thin-film composite (TFC) membranes, in conjunction with forward osmosis (FO) technology, provide a promising approach for treating the produced water, offering both cost-effectiveness and energy efficiency. In this study, MIL-125(Ti)–NH<sub>2</sub> is used during an interfacial polymerization reaction for fabricating titanium-based thin film nanocomposite (TFN) FO membrane. The effects of surface engineering, such as pore-forming agent addition, interfacial polymerization reaction, and filler inclusion, on the features of fabricated membranes, such as wettability, morphology, and surface roughness, were examined. The results show a significant reduction in contact angles (up to 33 %) and an increase in surface roughness (by approximately 31 %) after the monomer polymerization reaction, indicating that the formation of a selective layer resulted in higher hydrophilicity of the TFC/TFN membranes as well as good compatibility between polymer and fillers. Furthermore, the addition of titanium-based fillers improved FO membrane water flux by 240 % and lowered the specific reverse salt flux due to the non-covalent bond among water molecules and the –NH<sub>2</sub> group. Thus, this study provides the framework for future research by revealing the potential of titanium-based TFN membranes in treating oilfield-produced water and reusing in water flooding activity for enhanced oil recovery applications.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"10 3","pages":"Article 100922"},"PeriodicalIF":6.7,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144297735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Fabrication of hybrid nanostructured Bi2S3/Si heterojunction photodetector by laser ablation in thiourea 硫脲激光烧蚀制备Bi2S3/Si杂化纳米结构异质结光电探测器
IF 6.7 3区 材料科学
Journal of Science: Advanced Materials and Devices Pub Date : 2025-05-30 DOI: 10.1016/j.jsamd.2025.100919
Ahmed M. Ahmed , Asmiet Ramizy , Raid A. Ismail , Nasir A. Ibrahim , Vajid Nettoor Veettil , M.H. Eisa
{"title":"Fabrication of hybrid nanostructured Bi2S3/Si heterojunction photodetector by laser ablation in thiourea","authors":"Ahmed M. Ahmed ,&nbsp;Asmiet Ramizy ,&nbsp;Raid A. Ismail ,&nbsp;Nasir A. Ibrahim ,&nbsp;Vajid Nettoor Veettil ,&nbsp;M.H. Eisa","doi":"10.1016/j.jsamd.2025.100919","DOIUrl":"10.1016/j.jsamd.2025.100919","url":null,"abstract":"<div><div>This work reports on the fabrication of a high-performance Bi<sub>2</sub>S<sub>3</sub>/Si visible photodetector by laser ablation of Bi target in thiourea without using a catalyst. The structural, morphological, optical, and electrical properties of Bi<sub>2</sub>S<sub>3</sub> colloids are studied. The X-ray diffraction pattern reveals that the synthesized Bi<sub>2</sub>S<sub>3</sub> is crystalline with an orthorhombic structure. An increase in laser energy density leads to improved crystallinity. Scanning electron microscopy investigation of the Bi<sub>2</sub>S<sub>3</sub> confirms the formation of several morphologies: porous fibrous (PFs), nanoparticles (NPs), and nanorods (NRs), depending on the laser energy density. The optical energy gap of Bi<sub>2</sub>S<sub>3</sub> nanostructures was found to decrease from 1.85 to 1.74 eV as the laser energy density increased from 9.55 to 15.92 J/cm<sup>2</sup>. Hall measurements show that the electrical conductivity and electron mobility of Bi<sub>2</sub>S<sub>3</sub> decreases with an increase in laser energy density. The fabricated Bi<sub>2</sub>S<sub>3</sub>/Si photodetectors exhibit figures of merit that depend on the laser energy density. The optimum photodetector, fabricated at a laser energy density of 15.92 J/cm<sup>2</sup>, was found to have a responsivity of 1.32 A/W and an external quantum efficiency of 480 % at 350 nm. The rise/fall time ratio for the photodetector fabricated at 15.92 J/cm<sup>2</sup> was 0.34/0.34 s.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"10 3","pages":"Article 100919"},"PeriodicalIF":6.7,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144211915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
The influence of BaTiO3 nanocrystals on the electrical characteristics and energy storage capabilities of BNKT ceramics BaTiO3纳米晶对BNKT陶瓷电学特性和储能性能的影响
IF 6.7 3区 材料科学
Journal of Science: Advanced Materials and Devices Pub Date : 2025-05-28 DOI: 10.1016/j.jsamd.2025.100918
Piewpan Parjansri , Kanchit Kamlangkla , Sukum Eitssayeam , Uraiwan Inthata
{"title":"The influence of BaTiO3 nanocrystals on the electrical characteristics and energy storage capabilities of BNKT ceramics","authors":"Piewpan Parjansri ,&nbsp;Kanchit Kamlangkla ,&nbsp;Sukum Eitssayeam ,&nbsp;Uraiwan Inthata","doi":"10.1016/j.jsamd.2025.100918","DOIUrl":"10.1016/j.jsamd.2025.100918","url":null,"abstract":"<div><div>This study demonstrates that the incorporation of BaTiO<sub>3</sub> (BT) nanocrystals improved the electrical characteristics of lead-free Bi<sub>0.5</sub>(Na<sub>0.4</sub>K<sub>0.1</sub>)<sub>0.5</sub>TiO<sub>3</sub> (BNKT) ceramic. The molten-salt technique was employed to produce nanocrystal seeds. Upon mixing BNKT with BT nanocrystal seeds, the phase structure exhibited a combination of rhombohedral and tetragonal phases. The ceramics exhibit bulk density values ranging from 5.82 to 5.88 g/cm<sup>3</sup>, with a theoretical density of 97–98 %. A doping BT seed concentration of 0.02 yielded an optimum density value of 5.88 g/cm<sup>3</sup> and a dielectric constant of around 1566. The highest ε<sub>r</sub> value is 4575 for the sample containing a BT seed of 0.06 mol. The incorporation of BT seed = 0.02 resulted in optimal energy storage density (W), energy efficiency (η), maximum strain (%S<sub>max</sub>), and strain coefficient (d∗<sub>33</sub>) of 0.57 J/cm<sup>3</sup>, 67.13 %, 0.21 %, and 351.67 pm/V, respectively.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"10 3","pages":"Article 100918"},"PeriodicalIF":6.7,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144229881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Scalable synthesis of anatase titania quantum dots: Precursor influence, formation mechanism, and multifunctional applications 锐钛矿型二氧化钛量子点的可扩展合成:前驱体影响、形成机制和多功能应用
IF 6.7 3区 材料科学
Journal of Science: Advanced Materials and Devices Pub Date : 2025-05-25 DOI: 10.1016/j.jsamd.2025.100917
Md Rashed Alam, Munira Sultana, Afrina Sharmin, Shahran Ahmed, Sharmin Jahan, Sabrina Mostofa, M.S. Bashar
{"title":"Scalable synthesis of anatase titania quantum dots: Precursor influence, formation mechanism, and multifunctional applications","authors":"Md Rashed Alam,&nbsp;Munira Sultana,&nbsp;Afrina Sharmin,&nbsp;Shahran Ahmed,&nbsp;Sharmin Jahan,&nbsp;Sabrina Mostofa,&nbsp;M.S. Bashar","doi":"10.1016/j.jsamd.2025.100917","DOIUrl":"10.1016/j.jsamd.2025.100917","url":null,"abstract":"<div><div>This study demonstrates a straightforward and scalable approach for synthesizing anatase titania (TiO<sub>2</sub>) quantum dots (QDs) using various titanium precursors. The synthesis employed a simple sol-gel method combined with reflux condensation in an aqueous solution, eliminating the need for templates or organic solvents. A subsequent annealing process resulted in QDs with a high yield exceeding 43 %. The primary objective was to investigate the effects of different precursors on the properties of the QDs and the mechanisms governing their formation. X-ray diffraction (XRD) and transmission electron microscopy (TEM) analyses confirmed that the crystallite size was consistently below 10 nm, with variations influenced by the choice of precursor. The crystalline anatase phase was successfully identified through XRD and Raman spectroscopy. The optical properties of the QDs were studied using UV–Vis–NIR spectroscopy, and the energy bandgap (Eg) was determined to range from 4.04 to 4.08 eV, based on Tauc plot analysis. This value exceeds the typical bandgap of bulk TiO<sub>2</sub>, a phenomenon attributed to quantum size effects. The findings highlight the potential of this method for producing high-yield TiO<sub>2</sub> QDs with tunable properties, paving the way for advancements in applications such as photocatalysis, optoelectronics, and energy storage.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"10 3","pages":"Article 100917"},"PeriodicalIF":6.7,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144205594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Stable incorporation of amino-functionalized silver phosphate nanoparticles in the polyamide active layer of desalination membranes for enhanced antifouling properties 在脱盐膜的聚酰胺活性层中稳定地掺入氨基功能化磷酸银纳米粒子以增强防污性能
IF 6.7 3区 材料科学
Journal of Science: Advanced Materials and Devices Pub Date : 2025-05-25 DOI: 10.1016/j.jsamd.2025.100916
Abdul Waheed , Umair Baig , Fahad Ayesh Alharthi , Mohammad Azam Ansari , Abdulrahman Abdullah Abutaleb , Isam H. Aljundi
{"title":"Stable incorporation of amino-functionalized silver phosphate nanoparticles in the polyamide active layer of desalination membranes for enhanced antifouling properties","authors":"Abdul Waheed ,&nbsp;Umair Baig ,&nbsp;Fahad Ayesh Alharthi ,&nbsp;Mohammad Azam Ansari ,&nbsp;Abdulrahman Abdullah Abutaleb ,&nbsp;Isam H. Aljundi","doi":"10.1016/j.jsamd.2025.100916","DOIUrl":"10.1016/j.jsamd.2025.100916","url":null,"abstract":"<div><div>Various nanoparticles (NPs) have been incorporated into the membrane's active layer. Still, the success of such a decoration depends on the nano-size and homogeneity of the dispersion to be used during interfacial polymerization (IP). The current study aimed to achieve a stable and uniform incorporation of the silver phosphate (AgP) NPs in the membrane's active layer to develop efficient desalination and antifouling properties. Hence, this work was focused on obtaining nano-sized silver phosphate and then purposely decorating the amine (-NH<sub>2</sub>) functional groups on the AgP NPs, resulting in F–AgP. These features resulted in a uniform and homogeneous dispersion of the F–AgP NPs in the aqueous phase used for IP. The aqueous phase contained diethylenetriamine (DETA, 3A) as an amine, containing 0.05% wt/v of the F–AgP NPs. The obtained aqueous solution gave a uniform incorporation of the F–AgP NPs in the polyamide active layer upon IP reaction with acid chloride in the organic phase. Two organic phases were used: terephthaloyl chloride (TPC) and trimesoyl chloride (TMC) to obtain F–AgP-3A/TPC and F–AgP-3A/TMC membranes. The obtained membranes showed promising desalination performance, where F–AgP-3A/TPC membranes showed Na<sub>2</sub>SO<sub>4</sub> and CaCl<sub>2</sub> rejections of &gt;96%, whereas F–AgP-3A/TMC membrane had 83 and 75% rejections, respectively. The impact of feed temperature revealed a slight decline in Na<sub>2</sub>SO<sub>4</sub> rejection to 95.0% and an increase in permeate flux to 29.6 L m<sup>−2</sup> h<sup>−1</sup> at 35 <span><math><mrow><mo>°C</mo></mrow></math></span> in the case of F–AgP-3A/TPC. In addition, the stability tests also revealed a stable performance of the membranes in terms of permeate flux and salt rejection over 840 min. The BSA fouling studies showed that after an initial minor decrease in the normalized flux of the membranes, the rejection of Na<sub>2</sub>SO<sub>4</sub> remained stable at &gt;96%. Regarding anti-biofouling potentials, both membranes performed equally well, owing to AgP NPs in the active layer inhibiting &gt;99% growth of the gram-positive and negative bacterial colonies.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"10 3","pages":"Article 100916"},"PeriodicalIF":6.7,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144321779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
The preparation of hemoglobin based electrode on the basis of MOF-graphene oxide nano-complex and the investigation on its electro-catalytic effect on the reduction of H2O2 基于mof -氧化石墨烯纳米复合物的血红蛋白基电极的制备及其对H2O2还原的电催化效果研究
IF 6.7 3区 材料科学
Journal of Science: Advanced Materials and Devices Pub Date : 2025-05-14 DOI: 10.1016/j.jsamd.2025.100906
Bao Chen Han, Xue Qing Chu, Han Zeng
{"title":"The preparation of hemoglobin based electrode on the basis of MOF-graphene oxide nano-complex and the investigation on its electro-catalytic effect on the reduction of H2O2","authors":"Bao Chen Han,&nbsp;Xue Qing Chu,&nbsp;Han Zeng","doi":"10.1016/j.jsamd.2025.100906","DOIUrl":"10.1016/j.jsamd.2025.100906","url":null,"abstract":"<div><div>The co-mixture of graphene oxide and metal-organic framework material is proposed to act as a bio-macromolecule supporter. Hemoglobin based-electrode is prepared via the conventional drip-casting method, and heme protein molecules are incorporated into the nano-complex. The role of oxygen-containing groups on graphene oxide in the mutual interactions between elements within nano-composite, as well as the integrated hemoglobin and its impact on enzyme-involved electro-catalysis, are the primary objectives of the current manuscript. The analysis in the experimental results manifests that the existence of oxygen-containing groups onto GO would contribute to the improvement in the orderliness of nano-complex with hemoglobin molecule and the formation of an amphiphilic micelle-like structure with a hydrophobic outer surface and hydrophilic core. The mutual interaction between graphene oxide and a metal-organic framework would alleviate the binding strength of hemoglobin with metal-organic framework to distort the aboriginal configuration of the heme site within the protein molecule. The synergistic effect of multiple interactions between metal-organic framework and graphene oxide with oxygen-containing groups leads to the disappearance of the electrochemical signal for the electro-active sites in graphene oxide. The interaction between elements of nano-complex would depress the electro-activity of redox sites in nano-composite, and the integrated heme protein could play the role of the primary electro-active species in nano-complex with protein accommodation. The existence of oxygen-containing groups on graphene oxide could slow down the charge transportation process via the mutual interaction between heme protein and graphene oxide to restrain the electro-catalytic efficiency.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"10 3","pages":"Article 100906"},"PeriodicalIF":6.7,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144148061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Novel thermotropic system with UV-blocking ability for dynamic radiative cooling and synchronous visible/NIR tuning of windows in buildings in hot climate regions 一种新型的热致性系统,具有阻挡紫外线的能力,用于热气候地区建筑物的动态辐射冷却和同步可见光/近红外调节
IF 6.7 3区 材料科学
Journal of Science: Advanced Materials and Devices Pub Date : 2025-05-14 DOI: 10.1016/j.jsamd.2025.100907
Paulo Joaquim Nunes , Mariana Fernandes , Verónica de Zea Bermudez
{"title":"Novel thermotropic system with UV-blocking ability for dynamic radiative cooling and synchronous visible/NIR tuning of windows in buildings in hot climate regions","authors":"Paulo Joaquim Nunes ,&nbsp;Mariana Fernandes ,&nbsp;Verónica de Zea Bermudez","doi":"10.1016/j.jsamd.2025.100907","DOIUrl":"10.1016/j.jsamd.2025.100907","url":null,"abstract":"<div><div>Passive dynamic thermotropic (TT) radiative cooling (RC) windows aid net-zero energy buildings in smart cities by adjusting sunlight and solar heat in response to temperature variations, as they become opaque when temperatures rise, thereby using thermal radiation to dissipate heat into outer space. They are ideal for controlling solar heat gain and privacy. Here, we introduce a innovative eco-friendly TT layer with ultraviolet (UV)-shielding and RC ability composed of a sol-gel derived di-ureasil hybrid matrix doped with carbon dots (CDs) obtained from <em>Agapanthus africanus</em> leaves and variable contents of TT 1-butyl-3-methylimidazolium chloride ([BMIm]Cl) ionic liquid. The layers exhibit high transparency and thermal stability. The thermotropic devices (TTDs) assembled demonstrated, at the highest [BMIm]Cl concentration used, improved thermo-optical performance mediated by the surface plasmon resonance effect (SPRE), broad operational range (30–70 °C), and excellent cycling stability. Maximum transmittance variation (ΔT) values of 31/27 % at 555/1100 nm were achieved. This new class of TT layer represents a milestone in the development of smart RC materials for autonomous solar modulation windows.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"10 3","pages":"Article 100907"},"PeriodicalIF":6.7,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Efficient dual-imaging platform: Ultrasound-driven synthesis of bismuth–iron oxide nanocomposites 高效双成像平台:超声驱动合成铋-氧化铁纳米复合材料
IF 6.7 3区 材料科学
Journal of Science: Advanced Materials and Devices Pub Date : 2025-05-14 DOI: 10.1016/j.jsamd.2025.100905
Farhank Saber Braim , Nik Noor Ashikin Nik Ab Razak , Layla Qasim Ismael , Mohammed Ali Dheyab , Maher Talib Alshamkhani , Khoo Boon Yin , Azlan Abdul Aziz
{"title":"Efficient dual-imaging platform: Ultrasound-driven synthesis of bismuth–iron oxide nanocomposites","authors":"Farhank Saber Braim ,&nbsp;Nik Noor Ashikin Nik Ab Razak ,&nbsp;Layla Qasim Ismael ,&nbsp;Mohammed Ali Dheyab ,&nbsp;Maher Talib Alshamkhani ,&nbsp;Khoo Boon Yin ,&nbsp;Azlan Abdul Aziz","doi":"10.1016/j.jsamd.2025.100905","DOIUrl":"10.1016/j.jsamd.2025.100905","url":null,"abstract":"<div><div>Nanoparticle (NP)-based imaging probes exhibit significantly greater payload and longer blood circulation duration compared to small molecule contrast agents (CAs). Enhanced dual-modal imaging (MRI and CT) combines the great spatial resolution of magnetic resonance imaging (MRI) with the strong radiodensity of computed tomography (CT) to enable early and accurate illness diagnosis. Synthesized Bi–Fe<sub>3</sub>O<sub>4</sub> composite NPs are biocompatible and safe, crucial for <em>in vivo</em> clinical applications. The use of a rapid and straightforward, ultrasound-assisted synthesis process and green chemistry, specifically natural plant extract (<em>Sumac</em>) as a stabilizer, demonstrates a sustainable approach to nanomaterial development that minimizes environmental impact while maintaining high functional performance. The physicochemical properties of the Bi–Fe<sub>3</sub>O<sub>4</sub> were assessed using a range of typical analyses. The resulting composite NPs exhibited uniformity, crystallinity, semi-spherical shapes, and superparamagnetic properties, with an average size of 17.5 nm and a magnetization value of 92 emu/g. Furthermore, the research investigated the cytotoxicity, intracellular distribution, and cellular internalization of Bi–Fe<sub>3</sub>O<sub>4</sub> composite NPs using flow cytometry, the MTT assay, and Prussian blue staining. The findings indicated that the composite NPs were non-toxic, biocompatible, and dose-dependent under exposure conditions. The sensitivity, relaxivity, and attenuation characteristics of the colloid sample were evaluated for their potential dual-modal MRI/CT contrast enhancement using agarose gel-based phantoms. The Bi component exhibited an exceptionally high X-ray attenuation property of 399 HU, while the Fe<sub>3</sub>O<sub>4</sub> component showed remarkable magnetization (92 emu/g) and transverse relaxation (r<sub>2</sub> = 273 mM<sup>−1</sup> s<sup>−1</sup>) shortening capabilities.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"10 3","pages":"Article 100905"},"PeriodicalIF":6.7,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144134734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
A bifunctional floral TiO2–TiB2 heterostructure buried interface on SnO2 for 23.5 % efficient n–i–p perovskite solar cells 23.5%高效n-i-p钙钛矿太阳能电池在SnO2表面的双功能花状TiO2-TiB2异质结构埋藏界面
IF 6.7 3区 材料科学
Journal of Science: Advanced Materials and Devices Pub Date : 2025-05-10 DOI: 10.1016/j.jsamd.2025.100899
Nouf Alharbi
{"title":"A bifunctional floral TiO2–TiB2 heterostructure buried interface on SnO2 for 23.5 % efficient n–i–p perovskite solar cells","authors":"Nouf Alharbi","doi":"10.1016/j.jsamd.2025.100899","DOIUrl":"10.1016/j.jsamd.2025.100899","url":null,"abstract":"<div><div>Interfacial energy mismatch and carrier recombination at the electron transport layer (ETL)/perovskite interface significantly limit the performance of perovskite solar cells (PSCs). We present a bifunctional dual-layer electron transport layer consisting of a floral TiO<sub>2</sub>–TiB<sub>2</sub> heterostructure integrated on SnO<sub>2</sub> to address these limitations. The TiO<sub>2</sub>–TiB<sub>2</sub> heterostructure, formed through the partial oxidation of hydrothermally produced TiB<sub>2</sub> nanoflakes, exhibits advantageous energy band alignment and provides a robust internal electric field at the buried interface, as confirmed by UPS, Mott–Schottky, and KPFM studies. This facilitates effective charge extraction, diminishes trap-assisted recombination, and improves perovskite crystallization while minimizing lattice strain. The optimized dual-layer ETL attains a power conversion efficiency (PCE) of 23.5 %, with a V<sub>OC</sub> of 1.201 V, J_SC of 24.5 mA cm<sup>−2</sup>, and a fill factor of 78.81 % in n–i–p structured perovskite solar cells utilizing α-FAPbI<sub>3</sub>. Improved charge carrier mobility and reduced trap density were validated by SCLC, TRPL, and EIS studies. The gadget demonstrates outstanding operational and environmental stability under heat, moisture, and prolonged light-stress conditions. This study presents a scalable approach for interfacial engineering of dual-layer electron transport layers to achieve extremely efficient and durable perovskite photovoltaics.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"10 3","pages":"Article 100899"},"PeriodicalIF":6.7,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Studying structural, mechanical, and radiation shielding properties for BaO–Li2B4O7–SiO2–MgO glasses 研究BaO-Li2B4O7-SiO2-MgO玻璃的结构、力学和辐射屏蔽性能
IF 6.7 3区 材料科学
Journal of Science: Advanced Materials and Devices Pub Date : 2025-05-08 DOI: 10.1016/j.jsamd.2025.100904
Dalal Abdullah Aloraini , Aljawhara Almuqrin , Badriah Albarzan , E.A. Abdel Wahab , Kh S. Shaaban
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