Materials Science and Engineering: B最新文献

{"title":"Exploring the structural, elastic, magnetic, and electrical properties of the BaFe12-xTixO19 compound obtained by co-precipitation","authors":"P. Cardoso-das-Chagas ,&nbsp;J. Pereira-Silva ,&nbsp;A. Delgado ,&nbsp;A.R. Rodrigues ,&nbsp;Y. Leyet ,&nbsp;E. Govea-Alcaide ,&nbsp;Ramón R. Peña-Garcia ,&nbsp;F. Guerrero","doi":"10.1016/j.mseb.2025.118249","DOIUrl":"10.1016/j.mseb.2025.118249","url":null,"abstract":"<div><div>This study investigates the structural, microstructural, elastic, magnetic, and electrical properties of BaFe_12-xTi_xO₁₉ synthesized via the co-precipitation method. Rietveld refinement confirmed a single-phase hexagonal structure analogous to magnetoplumbite. The lattice parameters (<em>a</em>, <em>c</em>, <em>c</em>/<em>a</em>, and <em>V</em>) varied irregularly with increasing Ti⁴⁺ content. The crystallite size and microstrain, determined using the size-strain plot method, ranged from 33.8 to 75.0 nm and 0.22 % to 0.40 %, confirming a nanocrystalline structure. Micrographs revealed agglomerated particles composed of nanometer-sized grains. Elastic properties were assessed using Fourier Transform Infrared Spectroscopy (FTIR). The force constants and Debye temperature increased with Ti⁴⁺ content, indicating stronger bonds. Young’s modulus increased from x  = 0.0 to x  = 0.5 but decreased at higher Ti4⁺ concentrations. Conversely, the bulk and shear moduli decreased up to x  = 0.5, then increased with further Ti4⁺ incorporation. Magnetic measurements showed that the saturation magnetization ranged from 63.8 emu/g to 54.69 emu/g, while the remanent magnetization varied between 31.52 emu/g and 9.31 emu/g. Samples with x  = 0.3 and x  = 0.9 exhibited soft ferrimagnetic behavior, whereas the others displayed hard ferrimagnetic behavior. The effective anisotropy constant and anisotropy field decreased for x  ≤ 0.3 and remained stable at higher Ti4⁺ levels. Electrical studies indicated non-Debye relaxation behavior in impedance and electric modulus. Broad relaxation features in <em>Z</em> and <em>M</em> suggested that both grains and grain boundaries contribute to conduction at room temperature. The AC conductivity exhibited long-range carrier transport at low frequencies and localized electron hopping at high frequencies. Dielectric loss analysis revealed low-frequency interfacial polarization of the Maxwell-Wagner type.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"317 ","pages":"Article 118249"},"PeriodicalIF":3.9,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682844","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}

{"title":"Rare-earth metal-doped orange emissive photoluminescent carbon quantum dots for highly sensitive detection of Hg2+ ions: Multi-color imaging and real samples","authors":"Sonaimuthu Mohandoss ,&nbsp;Alagarsamy Priyadharshini ,&nbsp;Kuppu Sakthi Velu ,&nbsp;Ayyakannu Arumugam Napoleon ,&nbsp;Prasanta Roy ,&nbsp;Naushad Ahmad ,&nbsp;Mohammad Rizwan Khan ,&nbsp;Subramanian Palanisamy ,&nbsp;SangGuan You ,&nbsp;Seong-Cheol Kim","doi":"10.1016/j.mseb.2025.118236","DOIUrl":"10.1016/j.mseb.2025.118236","url":null,"abstract":"<div><div>A novel praseodymium (Pr³⁺)-doped carbon quantum dots (Pr-CQDs) were synthesized through a solvothermal process using citric acid, glutathione and praseodymium as a precursors. The Pr³⁺ ions were effectively coordinated with the carboxylate groups present on the surface of the CQDs and became integrated into the nano-graphene structure within the carbon core. The Pr-CQDs were sensibly analyzed through several spectroscopic and microscopic techniques, including UV–Vis, photoluminescence (PL), FT-IR spectroscopy, XRD, TEM, and XPS. These Pr-CQDs displayed excellent PL properties, emitting a distinct orange light at 575 nm when excited at 400 nm, achieving a quantum yield of 39.18 %. Morphological investigations showed that the Pr-CQDs were spherical in shape, well-dispersed, and had an average size of 4.94 ± 1.1 nm. Additionally, they exhibited stable PL across a broad pH range and in solutions with varying ionic strengths, demonstrating their robustness under different environmental conditions. When tested as optical sensors, The PL properties of Pr-CQDs displayed remarkable selectivity toward Hg²⁺ ions, which caused significant PL quenching, while other metal ions produced negligible responses. A linear relationship was established between the PL intensity and the concentration of Hg²⁺ ions (0–10 μM), with the sensor showing a detection limit as low as 90.3 nM, indicating high sensitivity. In addition, the biocompatibility of the Pr-CQDs were successfully used to multi-color image live cells as confirmed by a water-soluble tetrazolium salt (WST) assay, supporting their potential for use in biomedical applications. Moreover, the practical application, the Hg²⁺ ions was effectively measured using a spike and recovery method with real water samples.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"317 ","pages":"Article 118236"},"PeriodicalIF":3.9,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682760","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}

{"title":"Comprehensive study of Sr2VInO6 and Sr2VTlO6: Structural, mechanical, optoelectronic and thermoelectric properties","authors":"Salma Zahan ,&nbsp;Mohammad Abdur Rashid ,&nbsp;Tamanna Afroze ,&nbsp;M.H.R. Khan","doi":"10.1016/j.mseb.2025.118223","DOIUrl":"10.1016/j.mseb.2025.118223","url":null,"abstract":"<div><div>The structural, mechanical, optoelectronic, and thermoelectric properties of Sr<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>VInO<span><math><msub><mrow></mrow><mrow><mn>6</mn></mrow></msub></math></span> and Sr<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>VTlO<span><math><msub><mrow></mrow><mrow><mn>6</mn></mrow></msub></math></span> were investigated using the full potential linearized augmented plane wave (FP-LAPW) method. The structural and thermodynamic stability were confirmed by calculating their tolerance factors of 0.92 and 0.90 and negative formation energies of <span><math><mrow><mo>−</mo><mn>0</mn><mo>.</mo><mn>86</mn></mrow></math></span> eV/atom and <span><math><mrow><mo>−</mo><mn>0</mn><mo>.</mo><mn>78</mn></mrow></math></span> eV/atom, respectively. Both compounds are p-type indirect band gap semiconductors with gaps of 2.30 eV and 2.15 eV. Mechanical characterization using Pugh’s and Poisson’s ratios indicates the ductile nature of the compounds. A large absorption coefficient and conductivity in both the visible and ultraviolet regions ensure the potential of the studied compounds for renewable energy applications in ultraviolet–visible regions. Thermoelectric assessment shows low lattice thermal vibration at room temperature and figure of merit values of 0.63 (Sr<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>VInO6) and 0.73 (Sr<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>VTlO<span><math><msub><mrow></mrow><mrow><mn>6</mn></mrow></msub></math></span>) at 1000K, highlighting their efficiency for optoelectronic and thermoelectric applications with Sr<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>VTlO<span><math><msub><mrow></mrow><mrow><mn>6</mn></mrow></msub></math></span> demonstrating higher optical and thermal activity compared to Sr<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>VInO<span><math><msub><mrow></mrow><mrow><mn>6</mn></mrow></msub></math></span>.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"317 ","pages":"Article 118223"},"PeriodicalIF":3.9,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682762","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}

{"title":"Structural, microstructural and electrical characterization of Sr1-xCeO3: xNa+ (0 ≤ x ≤ 0.08): Investigating dielectric relaxation and NSPT charge transport mechanism","authors":"Arpita Tripathi,&nbsp;Pramod Kumar,&nbsp;Harish Verma,&nbsp;Shail Upadhyay","doi":"10.1016/j.mseb.2025.118224","DOIUrl":"10.1016/j.mseb.2025.118224","url":null,"abstract":"<div><div>This investigation emphasizes monovalent substitution of Na⁺ ions at Sr- sites of SrCeO₃. Three compositions (x = 0.00, 0.04, and 0.08) of the Sr_1-xCeO₃: xNa⁺ system named NS0, NS4, and NS8 were synthesized using a solid-state reaction route. XRD and Rietveld refinement confirmed their orthorhombic structure within the Pnma space group. SEM was employed to assess the impact of dopant on the microstructure, showing grain size enlargement attributed to sodium as a sintering aid in the doped samples. XPS showed the presence of Ce⁴⁺ and Ce³⁺ states. The Kubelka-Munk equation was employed to measure the bandgap reduction on Na⁺ doping. To get insight into dielectric and electrical properties, mesurements were thoroughly analyzed in RF range with temperature range 300–600 ℃. NS8 shows higher dielectric constant and lower dissipation factor. The frequency exponent variation with temperature agrees with the NSPT model. Impedance spectroscopy revealed two relaxation phenomena associated with the grain and grain boundaries.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"317 ","pages":"Article 118224"},"PeriodicalIF":3.9,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682843","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}

{"title":"Molybdenum substituted Ni-Mn cobaltite spinel nanostructure for high performance Ultracapacitors","authors":"Sultan Ahmed ,&nbsp;Mohammad A. Gondal ,&nbsp;Javed Alam Khan ,&nbsp;Munirah A. Almessiere ,&nbsp;Abdulhadi Baykal","doi":"10.1016/j.mseb.2025.118230","DOIUrl":"10.1016/j.mseb.2025.118230","url":null,"abstract":"<div><div>The role of electrode materials is crucial in high-capacity and high-power-density storage devices like supercapacitors because they offer superior electrochemical characteristics. The current study employs a hydrothermal approach to synthesize Molybdenum (Mo) doped spinel cobaltite nanostructure Mn_0.5Ni_0.5Mo<em>_x</em>Co<em>_2-2x</em>O₄ (Mn–Ni/Mo) where (<em>x</em> = 0.00, 0.02,0.04 and 0.06). Additionally, the chemical and physical characteristics of the synthesized nanostructures, were assessed using XPS, XRD, BET, TEM, SEM, and EDX methods. Further, investigation about the electrochemical evaluation of novel nanostructures as an active electrode material was conducted in 1 M Na₂SO₄, employing two-electrode system in asymmetric configuration. Investigations using different electrochemical characterization techniques of CV, EIS and GCD showed the notable effect of Mo on the overall electrochemical characteristics. In comparison to different doping ratio, the sample with 2 % doping of Mo showed the better performance in terms of bulk resistance (∼1 Ω), phase angle (∼67°) and response time (∼20 s<em>)</em>. The optimum doping ratio (<em>x</em> = 0.02) also showed the capacitance retention of more than 45 % at a scan rate of 100 mV s⁻¹. Further, at a current load of 0.5 A g⁻¹, the optimum dopant demonstrated an outstanding specific capacitance of 184.9F g⁻¹ and a stability of more than 88 % even after 10,000 GCD cycles. Moreover, the optimized electrode revealed noteworthy specific energy of 6.42 Wh Kg^{- 1} at a specific power of 3.91 kW kg⁻¹. These findings exhibit a great promise for the prepared nanostructure in energy storage devices.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"317 ","pages":"Article 118230"},"PeriodicalIF":3.9,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682761","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}

{"title":"Green synthesis of zinc oxide nanoparticles via Zingiber officinale/PEG biopolymer blend matrix: Optimization, physicochemical characterization, antioxidant and photocatalytic activity","authors":"Gizem KARABULUT ŞEVK,&nbsp;Tugce DİLBER,&nbsp;Nuray BEKÖZ ÜLLEN","doi":"10.1016/j.mseb.2025.118240","DOIUrl":"10.1016/j.mseb.2025.118240","url":null,"abstract":"<div><div>There is increasing interest in research on natural antioxidant structures that can be synthesized from plants and scavenge free radicals. This study aimed to successfully synthesize ZnO NPs with <em>Zingiber officinale</em> (ZO) extract using ultrasound-assisted plant-mediated synthesis known as the eco-friendly synthesis method. ZnO NPs were synthesized in the plant extract (ZO) and biopolymeric (polyethylene glycol, PEG) blend matrix by optimizing the parameters of volumetric ratio, PEG amount, sonication process amplitude, and process time. The final solutions were characterized by UV–Vis for optimization. The ZnO NPs were characterized by methods such as TEM, XRD, FTIR, and SEM, and additionally, their antioxidant properties were investigated using butylhydroxytoluene and ascorbic acid as standard solutions, and their photocatalytic activities against MB and RhB dyes were investigated. Most of the nano-sized particles exhibit a spherical morphology, the average size of the ZnO NPs is 22.17 nm and has a hexagonal wurtzite crystal structure. The antioxidant activity of ZnO NPs was evaluated as 72 % and increased with increasing concentration. ZnO NPs have acceptable antioxidant activity. It was found that NPs exhibited more active degradation against MB, and the degradation increased with increasing time. These results indicate that the ultrasound-assisted plant-mediated synthesized ZnO NPs exhibit high antioxidant activity, as demonstrated by an IC50 value of 0.0423 M, positioning them as viable candidates for biomedical and pharmaceutical applications.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"317 ","pages":"Article 118240"},"PeriodicalIF":3.9,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682758","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}

{"title":"Development of polysulfone-based nanocomposite membranes reinforced with magnetic graphene oxide for efficient mercury and oil removal from wastewater","authors":"Saied Ghamari,&nbsp;Somayeh Tourani","doi":"10.1016/j.mseb.2025.118190","DOIUrl":"10.1016/j.mseb.2025.118190","url":null,"abstract":"<div><div>In this study, we developing polysulfone-based composite membranes embedded with magnetic graphene oxide (MGO) for efficient mercury and oil removal. The results revealed that increasing the MGO nanoparticle concentration from 0 to 0.1 %Wt. led to a reduction in the contact angle from 68.2° to 56.7°, which enhanced the membrane hydrophilicity. The modified composite membranes with MGO nanoparticles showed greater surface roughness than the membrane without nanoparticles (M₀). It was also observed that the pure water flux decreased significantly with the addition of 0.1 %Wt MGO nanoparticles, from 239 L/m². h to 179 L/m².h. The highest mercury rejection efficiency was 94.35 % for the M₁ membrane at pH 6, whereas the M₁ membrane demonstrated a rejection efficiency of 96 % at a concentration of 250 mg/L during a 60-minute filtration. The composite membrane with 0.05 %Wt of MGO nanoparticles (M₁) achieved the highest oil rejection rate of approximately 96 % after 60 min of operation.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"317 ","pages":"Article 118190"},"PeriodicalIF":3.9,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682842","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}

{"title":"Investigations on the structural, magnetic and spin interactions of Mn0.5Zn0.5ErxFe2-xO4 ferrites synthesized by co-precipitation method","authors":"Lakshita Phor ,&nbsp;Swati Saini ,&nbsp;Mohd Afzal ,&nbsp;Vandana Meena ,&nbsp;Amanpreet Singh ,&nbsp;Ashok Kumar ,&nbsp;Surjeet Chahal","doi":"10.1016/j.mseb.2025.118234","DOIUrl":"10.1016/j.mseb.2025.118234","url":null,"abstract":"<div><div>This study investigates the impact of Er³⁺ doping on the structural and magnetic properties of Mn_0.5Zn_0.5Er_xFe_2−xO₄ (x = 0.0–0.1) nanoparticles synthesized by co-precipitation. X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM) confirm the formation of a single cubic spinel phase. Er³⁺ substitution leads to a lattice parameter increase from 8.3827 to 8.4197 Å, attributed to Er³⁺’s larger ionic radius relative to Fe³⁺. SEM analysis reveals a reduction in nanoparticle size from 33.1 to 25.1 nm with increased Er³⁺ content. Magnetic measurements show a decline in maximum magnetization from 32.46 to 15.04 emu/g at 10,000 Oe, indicating a decrease in net magnetization with Er³⁺ doping, accompanied by negligible coercivity and retentivity. Electron paramagnetic resonance (EPR) spectroscopy further characterizes spin dynamics, including peak-to-peak line width, resonance field, Lande’s g-factor, spin concentration, and relaxation time, highlighting significant changes in magnetic properties due to Er³⁺ doping.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"317 ","pages":"Article 118234"},"PeriodicalIF":3.9,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682840","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}

{"title":"Enhanced high-temperature service reliability of sinter-bonded joints with micro-nano hybrid Ag paste","authors":"Shuang Xi ,&nbsp;Xingwang Shen ,&nbsp;Junjie Li","doi":"10.1016/j.mseb.2025.118220","DOIUrl":"10.1016/j.mseb.2025.118220","url":null,"abstract":"<div><div>There are inevitable cracking defects in pressureless bonded joints with single nanoparticle system silver (Ag) pastes, which could potentially compromise the long-term service reliability of the bonded joints. To address this issue, a novel hybrid Ag paste suitable for pressureless sintering was developed by introducing micron Ag flakes into the modified Ag nanoparticles. The effects of process parameters, such as the mass ratio of Ag nanoparticles to micron-sized Ag flakes in the paste and the sintering time, on the electrical performance of the sintered films and the bonding performance of the joints were investigated. The mechanism of sintering reliability enhancement of micro-nano hybrid Ag paste was also investigated. After a long time of high-temperature aging, micro-nano hybrid Ag paste joints with optimized micro/nano ratio exhibit reduced surface defects (with porosity of 22.19 % for hybrid Ag paste joints while 28.67 % for nano-Ag paste joints), which contributes to the enhanced mechanical stability compared to nano-Ag paste bonded joints (with shear strength of 45.78 MPa for hybrid Ag paste joints while 33.38 MPa for nano-Ag paste joints). The obtained hybrid Ag paste with high mechanical service reliability and superior repeatability would find a broad application prospect in the field of power device packaging.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"317 ","pages":"Article 118220"},"PeriodicalIF":3.9,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682841","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}

{"title":"Polarization insensitive multiband terahertz absorber for sensing applications","authors":"Vikram Maurya,&nbsp;Sarthak Singhal","doi":"10.1016/j.mseb.2025.118215","DOIUrl":"10.1016/j.mseb.2025.118215","url":null,"abstract":"<div><div>This paper proposes a polarization-independent multiband terahertz absorber-based sensor having an overall volume of 15.1 × 15.1 × 2.67 µm³. The absorber’s unit cell consists of six metallic rings with different shapes, a substrate, and ground. It has peak absorptivity of 99.36 %, 96.84 %, 98.78 %, 99.26 %, 99.09 %, 97.72 % &amp; 93.14 % with Full Width Half Maxima of 0.23135, 0.38321, 0.5357, 0.9156, 1.811, 1.3179 &amp; 1.13884 THz at 2.4084, 4.3586, 6.2491, 9.5326, 13.0748, 15.5026 &amp; 17.4528 THz respectively. As a RI, bacteria, pesticide, chemical &amp; haemoglobin sensor, it has S_max of 2.502 THz/RIU, 1.931 THz/RIU, 1.853 THz/RIU, 1.878 THz/RIU &amp; 1.851 THz/RIU. The values of Q_max and FOM_max for all sensing applications are 18.362, 18.04, 17.712, 18.558 &amp; 17.963, and 2.607 RIU⁻¹, 2.122 RIU⁻¹, 2.221 RIU⁻¹, 2.049 RIU⁻¹ &amp; 2.022 RIU⁻¹. Compared to existing sensors, the proposed absorber-based sensor offers compact dimensions, multiband sensing, high sensitivity, Q, and FOM.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"317 ","pages":"Article 118215"},"PeriodicalIF":3.9,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682839","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}