Applied Physics A最新文献

{"title":"Investigation of microstructural, optical, and photocatalytic properties of sol–gel synthesized pristine SnO2 nanoscale particles","authors":"Laouedj Nadjia, Elaziouti Abdelkader, Taibi Mohamed","doi":"10.1007/s00339-024-08221-z","DOIUrl":"10.1007/s00339-024-08221-z","url":null,"abstract":"<div><p>In this research work, tin oxide nanoparticles (SnO<sub>2</sub> NPs) was developed to assess its photocatalytic performance against degradation of Congo red (CR) azodye under UVA-light illumination. To achieve this objective, SnO<sub>2</sub> NPs was designed and synthesized via a sol–gel method using stannous chloride and oxalic acid dihydrate as precursors. The un-calcined sample heated at 80 °C for 4 h (labled as SnO<sub>2</sub>-80) and calcined catalysts at 450 °C and 650 °C for 4 h (identified <b>as</b> SnO<sub>2</sub>-450 and 650 °C, respectively) were subsequently characterized by various description techniques such as SEM, TGA-MS, XRD and UV-vi-DRS for their physicochemical properties. Here, numerous methods have been explored to estimate the crystallite size and strain in the SnO<sub>2</sub>-450 using X-ray peak profile analysis. XRD findings disclosed the formation of crystalized tetragonal-type SnO<sub>2</sub> phase with P4<sub>2</sub>/mnm space groupe symmetry. All methods provide crystallite sizes within 20–30 nm for SnO-450 NPs, excluding for LSL model (69.30 nm) which proved to be invalid crystal. Therefore, H-W model is efficient and most accurate for examining microstructural characteristics, since it gave the highest value of R<sup>2</sup> (0.9031) and a decreased intrinsic strain (2.2 × 10<sup>–3</sup>). Rietveld refinement, performed by HighScore plus software, on collected XRD patterns of SnO<sub>2</sub>-450 was robust and convergence was achieved, yielding to low Rp (9.39%), Rwp (12.19.00%) difference indices. The goodness of fit parameter χ<sup>2</sup> was found to be lower χ<sup>2</sup> (1.52%). The crystallite size, D<sub>XRD</sub> = 15.82818(8) nm and strain ε = 55.28 × 10<sup>–4</sup> were obtained. The band gap energy with a band gap of 3.35, 3.35 and 3.49 eV were obtained for the direc allowed electronic transitions at 80, 450 and 650 °C, respectively. An important blue shift in band gap from 3.35 eV (SnO<sub>2</sub>-450) to 3.49 eV (SnO<sub>2</sub>-650) with increasing the temperature from 450 to 650 °C was accredited to a strong quantum confinement. All the calcined samples exhibited a foamed nanostructural morphology with particles size of 400 nm and 750 nm-3 µm at calcination temperature of 450 and 650 °C, respectively. The impact of the calcination temperature on the particle size, band gap energy and adsorption efficiency showed temperature-dependent behavior while the photocatalytic process is practically not altered by operating temperature. The optimum efficiencies of 76.44, 62.45, 95.02 and 93.34% were achieved within 100 min under UVA-light using prepared SnO<sub>2</sub>-450 and CeO<sub>2</sub>-500 NPs and pristine ZnO and TiO<sub>2</sub> photocatalysts.Congo red degradation behaviors over different operating condition were in good agreement with the Langmuir–Hinshelwood kinetic model for pseudo first order reaction with optimal R<sup>2</sup> (R<sup>2</sup> = 0.0.881–0.97). Subsequently, the exceptio","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The investigation of wrinkled ZnO as antireflective, protective, hydrophobic layer on the thermochromic VO2 films for smart windows","authors":"Lijing Zhang,&nbsp;Hongli Sun,&nbsp;He Liu,&nbsp;Chenming Dong,&nbsp;Chunbo Li,&nbsp;Wei Mi,&nbsp;Di Wang,&nbsp;Linan He,&nbsp;Liwei Zhou","doi":"10.1007/s00339-025-08351-y","DOIUrl":"10.1007/s00339-025-08351-y","url":null,"abstract":"<div><p>Vanadium dioxide (VO₂) is commonly employed in smart windows for its excellent thermochromic properties. However, its limited luminous transmittance (T_lum) and insufficient solar modulation capability (ΔT_sol) have severely limited its commercial application. In this study, the VO₂ films are prepared through rapid thermal annealing of the sputtered vanadium film on the quartz glass substrate. Then the wrinkled ZnO films are prepared as the antireflection layer on top of the VO₂ films using the sol-gel method. The light propagation path on the films surface is altered by the wrinkled topology, trapping most light within the ridges and valleys, while reducing reflection and increasing light transmittance. Compared with single-layer VO₂ films, the wrinkled ZnO/VO₂ bilayer structure can significantly increase T_lum from 33.3 to 47.7%, ΔT_sol from 5.6 to 7.9%, and decreases phase transition temperature (T_t) from 57.35 °C to 50.34 °C, the thermal hysteresis width (ΔT) from 14.8 °C to 12.78 °C. Furthermore, this structure exhibits an excellent water contact angle of 97.36 °, with its hydrophobic properties allowing ZnO films to function as a protective layer. Even after being exposed to air at room temperature for 60 days, the bilayer structure can still maintain its initial thermochromic performance. The results of this study provide new possibilities for improving the performance of smart windows.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microwave-driven eco-friendly fabrication of CuZrO3@GNP for superior asymmetric energy storage devices","authors":"J. John Benitto,&nbsp;J. Judith Vijaya,&nbsp;B. Saravanakumar,&nbsp;L. John Kennedy","doi":"10.1007/s00339-025-08348-7","DOIUrl":"10.1007/s00339-025-08348-7","url":null,"abstract":"<div><p>Supercapacitors (SCs) are ideal for high-power applications due to their rapid power delivery. The performance of SCs hinges on innovative electrode materials. This study presents the fabrication of a CuZrO₃ and graphene nanoplatelets (GNP) composite via a microwave-assisted, eco-friendly method. Structural and morphological analyses were conducted using XRD, FT-IR, FT-Raman, UV-DRS, SEM, EDX, HRTEM and N₂ adsorption/desorption. Electrochemical tests on CuZrO₃ and CuZrO₃@GNP revealed high capacitance (405.5 Fg ⁻¹), excellent rate performance, and good cyclic stability. An asymmetric supercapacitor using CuZrO₃@GNP was also fabricated and tested, showing a specific capacitance of 38.01 Fg ⁻¹, low charge transfer resistance, and robust cyclic performance. Comparative analysis with existing literature highlights the superior performance of this composite material in terms of specific capacitance and stability. This study demonstrates the potential of the CuZrO₃@GNP nanocomposite for developing advanced SCs electrode materials.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of rotational dynamics and initial stress on an elastic sphere with size-dependent double porosity","authors":"Nisha Rana,&nbsp;Dinesh Kumar Sharma,&nbsp;Anshu Sharma,&nbsp;Nivedita Sharma,&nbsp;Nantu Sarkar","doi":"10.1007/s00339-025-08331-2","DOIUrl":"10.1007/s00339-025-08331-2","url":null,"abstract":"<div><p>The main objective of this manuscript is to conduct a comprehensive analysis of the intricate interaction between rotation and initial stress in a nonlocal elastic spherical structure characterized by dual porosity. The influence of rotation and initial stress is examined both in the presence and absence of the nonlocal elasticity effect on the elastic sphere with dual porosity. A technique based on time-harmonic variations is applied to the governing equations, simplifying them into ordinary differential equations. The analytical results, computed using MATLAB software, provide a detailed examination of the response of the nonlocal elastic sphere to rotation and initial stress. A numerical iteration method is employed for the free vibration analysis, presenting the natural frequencies in tabular form according to mode numbers. Computer simulations offer graphical representations of frequency shifts in relation to mode numbers, comparing nonlocal and local elastic spheres. The study illustrates the variations in field functions with respect to the radius, considering the effects of rotation and initial stress. Graphical presentations indicate that as the rotation factor increases, the variations exhibit more pronounced behaviors. Motivated by its relevance to engineering and geotechnical applications, this research aims to deepen our understanding of these interactions, contributing valuable insights for the optimization and design of structures across various fields.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143481086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High performance lanthanum-doped nickel cobalt ferrites on titanium carbide MXene electrode material for superior hybrid device and precision creatinine sensing","authors":"Muhammad Hamza Waris,&nbsp;Nimra Muzaffar,&nbsp;Muhammad Azhar Mumtaz,&nbsp;Amir Muhammad Afzal,&nbsp;Muhammad Waqas Iqbal,&nbsp;Sohail Mumtaz,&nbsp;Muhammad Ali,&nbsp;Ibrahim A. Alaraidh,&nbsp;Mohammad K. Okla,&nbsp;Shaik Abdul Munnaf","doi":"10.1007/s00339-025-08306-3","DOIUrl":"10.1007/s00339-025-08306-3","url":null,"abstract":"<div><p>This research introduces an innovative La@NiCoFe₂O₄@Ti₃C₂ hybrid material intended for dual use in energy storage and creatinine detection, connecting materials science with biological diagnostics. Creatinine, an essential biomarker for renal failure, requires sensitive and dependable detection techniques. Combining rare earth elements and 2D materials in supercapacitors gives enormous potential for creating efficient and environmentally friendly electrical systems and devices. By growing La@NiCoFe₂O₄ nanoparticles on few-layer Ti₃C₂ Nano flakes, a straightforward hydrothermal approach was used to produce La@NiCoFe₂O₄@Ti₃C₂ hybrid materials with various concentrations of MXene. La@NiCoFe₂O₄@Ti₃C₂ achieved the specific capacitance (Cs) of 2900 Fg⁻¹ at 1.5 Ag⁻¹. A hybrid device was fabricated using La@NiCoFe₂O₄@Ti₃C₂ as the positive electrode and activated carbon as the negative electrode, demonstrating great potential for practical energy storage applications. The La@NiCoFe₂O₄@Ti₃C₂ electrode demonstrates the highest possible level of synergistic effects, with an impressively high energy density of 75 Whkg⁻¹ and exceptional cyclic stability of 87.7% capacitance retention (CR) after 5000 charging/discharging cycles. The power density of the device was 2900 Wkg⁻¹. With a strong correlation coefficient (<i>R</i>² = 0.99), the La@NiCoFe₂O₄@Ti₃C₂ electrochemical sensor can detect creatinine within a linear concentration range of 0 to 1000 μM. With energy storage functioning as a supplementary component, this study highlights the hybrid material's diagnostic capability and emphasizes its wider relevance in multifunctional systems for sustainability and healthcare.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143475289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of the effects of thermally-induced band gap modification on the size and shape of modification regions formed in ultrafast laser bonding","authors":"Craig Ungaro,&nbsp;Grigory Kolesov,&nbsp;Matthew Ross,&nbsp;Ying Liu,&nbsp;Galan G. Moore","doi":"10.1007/s00339-025-08330-3","DOIUrl":"10.1007/s00339-025-08330-3","url":null,"abstract":"<div><p>Experimental observation and numerical calculation of the nonlinear absorptivity of Corning^® EAGLE XG^® Glass substrates under ultrafast laser irradiation at high repetition rates are presented in this work. The temperature-dependent material band gap and absorption spectrum are obtained using a quantum mechanics-based computational methodology within density functional theory. The modeling predicts an increase of the multiphoton absorption coefficient and linear thermal absorption at high temperatures due to a reduction of the band gap. The impact of thermally-induced absorption at high substrate temperatures is investigated, which allows for a more accurate prediction of heat accumulation and welding geometry in ultrafast laser welding process.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Functionalization of SnS2 monolayer towards spintronic applications by doping with FeXn (X = C and N; n = 1, 3, and 6) clusters","authors":"Huynh Thi Phuong Thuy,&nbsp;Vo Van On,&nbsp;J. Guerrero-Sanchez,&nbsp;D. M. Hoat","doi":"10.1007/s00339-025-08304-5","DOIUrl":"10.1007/s00339-025-08304-5","url":null,"abstract":"<div><p>In this work, doping with <span>(hbox {FeX}_{{n}})</span> (X = C and N; n = 1, 3, and 6) is proposed as an efficient way to modify the electronic and magnetic properties of <span>(hbox {SnS}_{{2}})</span> monolayer. Pristine monolayer is proven to be a two-dimensional (2D) nonmagnetic semiconductor material with indirect gap value of 1.58(2.37) eV obtained from PBE(HSE06)-based calculations. Doping with single Fe (<span>(hbox {Fe}_{{Sn}})</span> system) and N (<span>(hbox {N}_{{S}})</span> system) atoms produces total magnetic moments of 4.00 and 1.00 <span>(mu _{B})</span>, respectively. <span>(hbox {Fe}_{{Sn}})</span> is a 2D half-metallic material, while the magnetic semiconductor nature is obtained for <span>(hbox {N}_{{S}})</span> system. In contrast, the substitution of C atom (<span>(hbox {C}_{{S}})</span> system) causes a band gap reduction of the order of 66.46%, preserving the nonmagnetic nature of <span>(hbox {SnS}_{{2}})</span> monolayer. Significant magnetism is also induced by doping with <span>(hbox {FeX}_{{n}})</span> (<span>(hbox {D}_{{FeXn}})</span> systems) clusters, where Fe and X atoms originate mainly the systems magnetism. In these cases, total magnetic moment depends on the spin coupling insides <span>(hbox {FeC}_{{n}})</span> clusters, such that values between 0.00 and 8.00 <span>(mu _{B})</span> are obtained. Interestingly, the feature-rich half-metallicity is found for <span>(hbox {D}_{{FeC3}})</span>, <span>(hbox {D}_{{FeN3}})</span>, and <span>(hbox {D}_{{FeN6}})</span> systems. Moreover, <span>(hbox {D}_{{FeC}})</span>, <span>(hbox {D}_{{FeN}})</span>, and <span>(hbox {D}_{{FeC6}})</span> systems are proven to be magnetic semiconductor 2D materials. Bader charge analysis asserts that Fe atom loses charge to transfer to the host monolayer, meanwhile C and N impurities attract charge from the host monolayer. Our study provides insights into the coeffects of Fe and X impurities into <span>(hbox {SnS}_{{2}})</span> monolayer lattice, which may be useful for further functionalization of this 2D material towards spintronic applications.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 with Rietveld analysis and enhancement of magnetic, magnetocaloric study of Al substituted Ni–Cd bulk spinel ferrites","authors":"Nur Mohammed,&nbsp;Arjumanara Bagum,&nbsp;Md. Shahbaz Khan,&nbsp;M. Belal Hossen","doi":"10.1007/s00339-025-08295-3","DOIUrl":"10.1007/s00339-025-08295-3","url":null,"abstract":"<div><p>Ni_0.65Cd_0.35Fe_2-xAl_xO₄ (0 ≤ x ≤ 0.060) disc shape bulk specimen fabricated from the sol–gel synthesized nanocrystalline powders. According to a structural analysis using XRD and Rietveld refinement, single-phase cubic spinel structure confirmed. Crystalline size (40–36) nm calculated using Scherer’s formula. SEM images used to study surface morphology and grain size found decreasing trend from (1.4–1.0) μm. The saturation magnetization (M_s) as well as magnetic moment increased for <i>x</i> = 0.45 and beyond that it decreased with Al content, which phenomenon is attributed due to the reduction of length between tetrahedral (A) sites and octahedral [B] sites of cations. The temperature-dependent magnetization graphs shown sharply declining value of the temperature (i.e., dM/dT maximum) dropping from 582.27 to 578.76 K at the Curie point with Al concentration. The maximum magnetic entropy change (− <span>(Delta S_{M}^{max })</span> ) derived from the Maxwell relation, is determined to be (0.54–0.72) JKg⁻¹ K⁻¹ as well as to relative cooling power of (43.18–56.97) Jkg⁻¹ with an applied magnetic field of μ₀H = 3 T. UV–visible spectroscopy utilized to explore optical study and found enhancement of absorption properties with Al content.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effect of matching glass frits on the metallization of n+ emitter by balancing wetting and sintering behavior","authors":"Chenqian Yang,&nbsp;Yinghu Sun,&nbsp;Hui Wang,&nbsp;Jintao Bai,&nbsp;Shenghua Ma","doi":"10.1007/s00339-025-08271-x","DOIUrl":"10.1007/s00339-025-08271-x","url":null,"abstract":"<div><p>In the production of silicon solar cells, one of the key stages is the metallization process, where the softening temperature of the glass powder plays a decisive role in the metallization reaction. If the softening temperature is too low, it can lead to excessive erosion of the SiN_x layer. Conversely, if the softening temperature is too high, it may hinder the efficient completion of the metallization process. To address this issue, this study proposes an innovative concept that introduces a melting gradient in the glass binder phase of the electronic paste. Specifically, low-melting-point glass is tightly packed around high-melting-point glass. During the metallization process, the low-melting-point glass melts first, wetting and etching the substrate, while the high-melting-point glass etches the substrate more rapidly and facilitates the formation of silver crystals. The results demonstrate that the optimized mixed glass samples achieve a photovoltaic conversion efficiency improvement of 1.28–2.83% compared to pre-mixed and single glass melts. In particular, the M4 sample of the mixed glass exhibits the shortest melting process and the highest photovoltaic conversion efficiency (22.879%), along with the most significant recrystallization (0.057%). Transmission results indicate a large presence of silver nanoparticles in the glass layer, which can be attributed to the earlier melting of the low-temperature glass that erodes the SiN_x layer. This, in turn, allows the high-temperature glass to react with silver powder and silicon, resulting in the formation of abundant silver crystals. The key to this improvement lies in adjusting the glass's characteristic temperature, wettability, and etching properties, thereby enhancing the overall cell performance. This concept provides a novel approach to the design of conductive pastes, enabling independent tuning of interfacial reactions and thermal properties. It underscores the importance and remarkable performance of mixed glass materials with diverse properties, offering significant potential for various applications.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design of a compact, highly flexible, high-performance wideband all-textile antenna for wearable and portable IoT devices","authors":"Saïd Douhi,&nbsp;Adil Eddiai,&nbsp;Omar Cherkaoui,&nbsp;M’hammed Mazroui","doi":"10.1007/s00339-025-08342-z","DOIUrl":"10.1007/s00339-025-08342-z","url":null,"abstract":"<div><p>The increasing adoption of wearable electronic devices across various sectors has driven significant research into flexible radio frequency (RF) antennas to overcome the limitations of traditional metal-based antennas. The demand for lightweight, flexible, and low-profile designs highlights the necessity for innovative solutions in portable electronics. This work proposes a compact, broadband omnidirectional monopole antenna for wearable applications, incorporating a slotted ground plane to enhance both impedance bandwidth and omnidirectional radiation characteristics. The antenna design was developed using Computer Simulation Technology (CST) software and validated through ANSYS HFSS, demonstrating strong agreement between the results from both simulation software. The antenna was fabricated using a felt fabric substrate and e-textile conductive materials, providing excellent flexibility, lightweight properties, and seamless integration into garments. The fabricated prototype, measuring 80 mm × 57 mm × 1 mm, achieved a measured impedance bandwidth of 118% (1.78–7 GHz). The gain varies between 2.17 dBi and 8.9 dBi, while the efficiency ranges from 85 to 97% over the operational frequency range, making this antenna a promising candidate for high-data-rate and efficient communication links. Structural deformation tests confirmed the antenna’s stable performance under mechanical stress and human body loading. Additionally, the simulated specific absorption rate (SAR) values remained within FCC limits, validating the antenna’s safety for wearable applications. A potential healthcare application involves integrating the antenna into a doctor’s chest badge, which could replace manual card swiping, improve convenience, and reduce bacterial contamination risks. Overall, this antenna offers significant potential for advancing wearable communication systems and medical technology.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143455531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}