Journal of Materials Science: Materials in Electronics最新文献

{"title":"Color tunable Er-Eu co-doped double perovskite La2MgSnO6 phosphor for optical temperature sensor","authors":"Wanqing Qian, Qingliang Xu, Xueqing Yu, Fayaz Hussain, Xinhua Chen, Weitao Su, Shikuan Sun, Kaixin Song","doi":"10.1007/s10854-024-13403-9","DOIUrl":"https://doi.org/10.1007/s10854-024-13403-9","url":null,"abstract":"<p>To develop new luminescent materials for optical thermometers, a series of Er³⁺/Eu³⁺doped double perovskite La₂MgSnO₆ phosphors are synthesized by a high-temperature solid-phase method. The structure, luminescence performance, energy transfer, and thermal sensitivity are systematically studied by X-ray diffraction (XRD), scanning electron microscopy fluorescence spectroscopy, lifetime decay curve, and temperature-dependent emission spectra. The prepared samples possess good coincidence with pure perovskite phase, and the refined high-quality XRD data reveal that Eu³⁺ and Er³⁺jointly occupy La³⁺ sites. which is attributed to the effective energy transfer from Er³⁺ to Eu³⁺ ions. By adjusting the doping concentration of Eu³⁺, the emission of Er³⁺ is attenuated and the luminous color is modulated from green to orange-red. These demonstrate the existence of energy transfer between Er³⁺ and Eu³⁺. In addition, the optimized La₂MgSnO₆: 0.075Er³⁺, 0.04Eu³⁺ phosphor exhibits excellent thermal stability and good temperature cycling. The emission intensity showed good cycling in the process of repeated heating and cooling, and maintained to 76% of the initial temperature (303K) at 403K. Studied the optical temperature sensing performance of LMS: 0.075Er³⁺, 0.04Eu³⁺ fluorescent powder. The results of fitting the fluorescence intensity ratio with the non-thermal coupling characteristic peaks of 555 and 706nm showed excellent optical sensitivity, and the S_a and S_r were calculated as 0.0029K⁻¹ and 1.21%K⁻¹, respectively. All results indicate that LMS: 0.075Er³⁺, 0.04Eu³⁺ phosphors could have potential applications for non-contact optical temperature measurement materials.</p>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142227664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unlocking the power of Zn-substituted barium ferrite (BaFe2O4) nanoparticles for unprecedented magnetic, dielectric, and optical enhancement for photovoltaic devices","authors":"Irum Shahid Khan, Iftikhar Hussain Gul","doi":"10.1007/s10854-024-13409-3","DOIUrl":"https://doi.org/10.1007/s10854-024-13409-3","url":null,"abstract":"<p>The existing problem of photovoltaics (PV) seeks new efficient materials that can feed to the next level solar power generation under access universally. This study proposed the magnetic nanoparticles (NPs) of barium mono ferrite BaFe₂O₄ with transition metal Zn, nominated for its electrical properties to explore incorporation’s effect on structural, physicochemical, and magnetic properties to develop the dynamics of charge carriers, stability, and possibly tackling the need of new competent materials for PV technology. ZnO nanoparticles are widely used in solar cells with wide band gap (3.1 eV to 3.37 eV), an optimized value as low as 1.35 eV was successfully achieved in the present work. BaFe₂O₄ NPs exposing orthorhombic system for photovoltaic application was surveyed for the first time to the best of our knowledge. The nanoparticles of Ba_1−<i>x</i>Zn_<i>x</i>Fe₂O₄ (<i>x</i> = 0.0, 0.2, 0.3, 0.5) scheme have been prepared by the sol–gel auto-combustion method. An inclusive structural examination has been executed for prepared samples by X-ray diffraction and RAMAN study. The rarely found orthorhombic crystal system with Pnma-62 was identified and a 3D visualization was drawn for the first time for BaFe₂O₄. The magnetic, dielectric, photovoltaic (PV), and optical properties using Vibrating sample magnetometer, Impedance Analyzer, Fluorescence spectrophotometer, and UV Visible diffuse reflectance spectroscopy correspondingly were also explored. The effectively aimed composition (Ba_0.8Zn_0.2Fe₂O₄, Ba_0.7Zn_0.3Fe₂O₄, and Ba_0.5Zn_0.5Fe₂O₄) revealing spherical NPs and the chemical bonds were verified by Energy dispersive X-ray spectroscopy, Scanning electron microscopy, and Fourier transform infrared spectrometer individually. Zn_<i>x</i> = 0.3 sample showed maximum magnetization of 15.3 emu/g with responsive polarization. The similar sample’s photocurrent increased when it was illuminated, as per photovoltaic data of current–voltage curves measured by Electrochemical impedance spectroscopy. The energy band gaps for pristine sample decreased from 1.51 to 1.35 eV for Zn_<i>x</i> = 0.3, which was closer to a theoretical optimum band gap value of about 1.4 eV for PV cells. The photoluminescence emission also lied in the visible range 607 nm. A concept for the use of magnetic NPs in PV devices was offered by valuable optical, magnetic, and photovoltaic capabilities cooperating well in the improvement of the outcome and expresses the importance of barium mono ferrite nanoparticles for aimed application.</p>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142210267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tuning the structural, optical and magnetic properties of transition metal doped zinc oxide nanoparticles","authors":"Shradha Roy, Samrat Mukherjee","doi":"10.1007/s10854-024-13433-3","DOIUrl":"https://doi.org/10.1007/s10854-024-13433-3","url":null,"abstract":"<p>Transition metal Ni²⁺ doped ZnO nanoparticles were prepared by surfactant-aided co-precipitation route with the general formula Zn_1-<i>x</i>Ni_<i>x</i>O (<i>x</i> = 0.00, 0.04, 0.08, and 0.12). The influence of transition metal doping on the structural, optical, and magnetic characteristics of ZnO nanoparticles has been explored employing a variety of characterization techniques, such as x-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM) for structural characterization, ultra violet visible spectroscopy (UV–Vis), photoluminescence spectroscopy (PL) for optical characterization, and vibrating sample magnetometer (VSM) for magnetic characterization. All the samples had a single-phase hexagonal structure with a mean crystallite size ranging from 22 to 26 nm. HRTEM was used to study the size distribution and morphology of the particles. The optical energy band gap was initially found to blue shift from 3.27 to 3.36 eV when Ni dopant level increased from 0 to 8%, and further red shifted from 3.36 to 3.29 eV when the Ni dopant level increased from 8 to 12%. The PL study shows a broad violet emission band at 425 nm, indicating the presence of zinc interstitials and oxygen interstitial defects in the ZnO lattice. Room temperature magnetization (M–H) loops suggested that the diamagnetic behaviour of ZnO changes to weak ferromagnetism when doped with Ni. A saturation magnetization of 0.18 emu/g was seen for the ZnO sample doped with 8% Ni²⁺. Since achieving room temperature ferromagnetism is crucial for dilute magnetic semiconductors, our study presents a valuable contribution for spintronics and high-frequency applications.</p>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142210246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cadmium sulfide quantum dots-polythiophene nanocomposite for electrical ammonia sensing","authors":"Pooja L. Chaudhary, Parag V. Adhyapak","doi":"10.1007/s10854-024-13394-7","DOIUrl":"https://doi.org/10.1007/s10854-024-13394-7","url":null,"abstract":"<p>Quantum dots (QDs) are zero-dimensional semiconducting nanomaterial of size ranging from 1 to 10 nm. They exhibit properties like high photostability, high quantum yield, excellent photoluminescence properties, high surface-to-volume ratio, and tunable size confinement effect. In this report, fluorescent cadmium sulfide quantum dots (CdS QDs) have been synthesized using hydrothermal method with citric acid as a capping agent. Polythiophene (PTh) was prepared by oxidative polymerization process using thiophene monomer. Nanocomposites of CdS QDs and PTh were obtained through ex situ method by mixing CdS QDs with PTh in different proportions. The as-prepared products have been characterized using different characterization techniques. The CdS QDs, PTh, and their nanocomposites were tested for electrical gas sensing. Maximum sensitivity of ~ 38% for 100 ppm and ~ 48% for 130 ppm were obtained toward ammonia for equal volume proportion-loaded CdS QDs-PTh nanocomposite. The response time observed less than 1 s and recovery time was in between 4 and 8 s. The sensor shows linear response which is useful for device fabrication.</p>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142210200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic enhancement of electric heating and infrared radiation characteristics in La0.7Sr0.3Al0.5Mn0.5O3@Pt thin film enabling electro-thermal-optical conversion","authors":"Xiaoyun Sun, Haigang Hou, Dongliang Zhang, Liuxu Yu, Jian Yang, Guiwu Liu, Junlin Liu, Guanjun Qiao","doi":"10.1007/s10854-024-13418-2","DOIUrl":"https://doi.org/10.1007/s10854-024-13418-2","url":null,"abstract":"<p>Non dispersive infrared gas sensor represents the leading trend in gas sensor technology with the infrared light source serving as a critical component. The working principle of infrared light sources involves energy conversions of electricity to heat and thermal to light, which is independently carried out by the electric heating layer and the infrared radiation layer. The complex multi-film structure of infrared light sources leads to high heat transfer loss, long response time, and increased heat capacity. This study defines a coral-like porous thin film containing Pt nanoparticles loaded on La_0.7Sr_0.3Al_0.5Mn_0.5O₃ (La_0.7Sr_0.3Al_0.5Mn_0.5O₃@Pt), created from the concept of multi-functional materials. This thin film exhibits outstanding electric heating and infrared radiation properties. The co-doping of A-site and B-site of LaAlO₃ made the La_0.7Sr_0.3Al_0.5Mn_0.5O₃ thin film not only possessed certain oxygen vacancies and lattice distortion, but also formed a coral-like micro-porous structure. The loading of Pt nanoparticles possesses high electrical conductivity and localized surface plasmon resonance effect, further nanostructured the coral-like micro-porous structure of La_0.7Sr_0.3Al_0.5Mn_0.5O₃ thin film. Benefit from the synergistic effect of the co-doping of Sr²⁺ and Mn²⁺and loading of Pt nanoparticles, the resistance of the La_0.7Sr_0.3Al_0.5Mn_0.5O₃@Pt thin film was reduced by 9 orders of magnitude. Meanwhile, its electric heating performance was improved by a factor of 11.29 compared to the LaAlO₃ thin film. Moreover, the infrared absorptivity of La_0.7Sr_0.3Al_0.5Mn_0.5O₃@Pt thin film exhibited in the range of 2.5–25 μm was ~ 96.7%, which is 1.60 times higher than that of LaAlO₃ thin film, indicating a significant improvement in the infrared radiation performance.</p>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142210202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring the photocatalytic degradation of methylene blue and carbol fuchsin dyes by magnesium codoped on graphene oxide and titanium dioxide green composites","authors":"S. Saranya, M. Rajkumar, Venkatraj Athikesavan, V. Rajendran","doi":"10.1007/s10854-024-13432-4","DOIUrl":"https://doi.org/10.1007/s10854-024-13432-4","url":null,"abstract":"<p>This research synthesized and characterized nature friendly green composites comprising graphene, titanium, and magnesium oxides (GO–TiO₂/MgO) and its dye degradation efficiency. The deposition of GO–TiO₂/MgO nanocomposites were achieved using ultrasonication, followed by the synthesis of green composites using <i>Moringa oleifera</i> seed extract as reductant. Crystallographic studies were confirmed by X-ray diffraction, functional groups and presence of elements were confirmed using Fourier-transform infrared spectroscopy (FTIR) and energy dispersive X-ray analysis (EDAX). Phase structure and vibrational modes were authenticated using Raman spectroscopy. Photoluminescence studies conveys the electrical characterization. Morphology of the samples were verified using Field emission scanning electron microscopy (FESEM) and High-resolution transmission electron microscopy (HRTEM). Among the samples, NC MgO1 displays PSD (Particle size distribution) of 8.8 nm with bandgap energy of 3.26 eV with crystalline size 21 nm possessing surface area of 70 m²/g exhibits better photocatalytic activity. N₂ Adsorption–Desorption analysis reveals the pore radius, volume, and surface area of the specimen. Selected area electron diffraction (SAED) pattern exhibits the sample’s polycrystalline nature, with diffraction signals matches with the MgO and TiO₂ anatase crystalline phase, while FESEM analysis corroborated the morphological modification of TiO₂ after GO incorporation and sensitization. Optical analyses indicated enhanced properties of TiO₂ in the visible range with the presence of natural sensitizer (<i>Moringa oleifera</i> seed extract) MgO and GO. Additionally, photocatalytic degradation studies of methylene blue and carbol fuchsin under UV visible irradiation in aqueous solution, employing a pseudo-first-order model, revealed a significant synergistic effect of 85% yield at 90 min with a rate constant and correlation efficiency for methylene blue was 0.018764/min and 0.98453 and for carbol fuchsin it was found to be 0.0227538/min and 0.9956.</p>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142210203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication and characteristics of PMMA–PEG/SiO2–SiC quaternary nanocomposites for gamma ray shielding and flexible optoelectronics applications","authors":"Zina Sattar, Ahmed Hashim","doi":"10.1007/s10854-024-13435-1","DOIUrl":"https://doi.org/10.1007/s10854-024-13435-1","url":null,"abstract":"<p>The objective of the present work is to create of new nanocomposites made from silicon dioxide (SiO₂)/silicon carbide (SiC) nanostructures doped poly-methyl methacrylate (PMMA)/polyethylene glycol (PEG) polymeric blend to use in gamma ray attenuation and optoelectronics applications. The PMMA–PEG–SiO₂–SiC nanocomposites’ optical properties were investigated. According to the obtained data, when the SiO₂/SiC NPs ratio increases to 4.8%, the absorption (A) of PMMA–PEG increased by approximately 69.7% while the transmission (<i>T</i>) decreased by approximately 64.19%. When the SiO₂/SiC NPs ratio reached 4.8%, the energy gap (<i>E</i>_g) reduced from 4.95 eV for PMMA–PEG to 3.74 eV. These findings may be crucial for the utilization of PMMA–PEG–SiO₂–SiC nanocomposites in optical and gamma ray applications. When SiO₂/SiC NPs were added to PMMA–PEG up to 4.8% at a wavelength of <i>λ</i> = 540 nm, the extra optical constants like the coefficient of absorption (<i>α</i>), index of refractive (<i>n</i>), coefficient of extinction (<i>k</i>), real (<i>ε</i>₁) and imaginary (<i>ε</i>₂) dielectric constants, and conductivity (<i>σ</i>_op) enhanced by approximately 36.47%, 79.92%, 34.84%, 60.71%, 27.53%, and 27.28%, respectively. These behaviors make the PMMA–PEG–SiO₂–SiC nanocomposites suitable optical materials for electronic and optical applications. Lastly, as nanoparticle concentrations rise, the attenuation coefficients for gamma radiation increased. The outcomes demonstrated that the nanocomposites of (PMMA–PEG–SiO₂–SiC) exhibit high attenuation coefficients.</p>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142226751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of glacial acetic acid on the synthesis and performance of WO3 photocatalytic materials","authors":"Ping’an Huang, Xin Yang, Weihao Wu, Suna Zhang, Xiangrong Zhu, Luping Zhu","doi":"10.1007/s10854-024-13425-3","DOIUrl":"https://doi.org/10.1007/s10854-024-13425-3","url":null,"abstract":"<p>WO₃ with different morphologies and structures was prepared via a simple hydrothermal process. The synthesized samples were characterized via different techniques. The effect of the amount of glacial acetic acid added to the precursor solution on the morphology and structure of WO₃ samples was investigated. The amount of glacial acetic acid added was confirmed to be a key parameter in regulating the morphology and microstructure of WO₃. The photocatalytic activities of the samples have been examined by the degradation of the model pollutant. The WO₃ samples (WO₃-20) with {001} facet orientation prepared in the presence of 20 mL glacial acetic acid showed a degradation rate of 96.16% for Rhodamine-B (RhB) within 40 min. The excellent performance should be attributed to its low band gap, high light absorption, excellent electron–hole separation efficiency, preferred orientation growth, and unique morphology. The results of quenching and capture experiments showed that the contribution order of different active species in the photocatalytic process is: ·O₂⁻ &gt; ·OH &gt; h⁺. In addition, the photocatalytic activity of the WO₃-20 samples showed slight loses after four cycles, displaying high stability and good recycling performance.</p>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142210245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magneto-thermo-optic characterization of ZnFe2O4/Ag/AgCl nanocomposite/water nanofluid","authors":"Minu Pius, Frincy Francis, Santhi Ani Joseph","doi":"10.1007/s10854-024-13410-w","DOIUrl":"https://doi.org/10.1007/s10854-024-13410-w","url":null,"abstract":"<p>Herein, we report how the magnetic tunability of thermal diffusivity of nanofluids of zinc ferrite/silver/silver chloride in water can be achieved. High resolution transmission electron microscopy, X-ray Photoelectron Spectroscopy and Brunauer–Emmett–Teller surface area analysis are performed to validate the characteristics and suitability of the sample in designing the magneto-thermo-optic characteristics. The dual beam thermal lens technique was employed for the first-time estimation of the thermal diffusivity of nanofluids in the presence of an external magnetic field which demonstrated up to a ten-fold increase in thermal diffusivity of nanofluid [<span>(14.5times {10}^{-7}{m}^{2}{s}^{-1})</span>] than that of base fluid water attributed to the clustering/chaining effects. The optical microscopic and field emission scanning electron microscopic images of the nanofluid films dried in the presence of magnetic field pointed to the dominant effects of percolation due to the aggregate formation of nanoparticles in attributing magnetic tunability of thermal diffusivity. Thus zinc ferrite/silver/silver chloride nanofluid can be tailored for several heat transfer applications such as heat sinks in electronics, magnetic hyperthermia and photothermal therapy.</p>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142210248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of nano-SiO2 on microstructure and magnetic properties of FeSi soft magnetic composites","authors":"Yu Peng","doi":"10.1007/s10854-024-13437-z","DOIUrl":"https://doi.org/10.1007/s10854-024-13437-z","url":null,"abstract":"<p>FeSi soft magnetic composites (SMCs) were fabricated using nano-SiO₂/epoxy silicone resin (ESR) as insulating layers, and the influence of SiO₂ content on microstructure and magnetic properties of soft magnetic composites were investigated. The introduction of suitable nano-SiO₂ into epoxy silicone resin increase the density, permeability and resistivity which then reduce of magnetic loss of SMCs. SiO₂ nanoparticles distribute in the ESR and coat on the magnetic metal particle surface, and the formation of insulating coating caused by the addition of SiO₂ nano-particles reduce the magnetic loss and which can be attributed to the reduction of eddy-current loss. Excess SiO₂ addition result in the aggregation of SiO₂ particle between magnetic particles, which then destroy magnetic performance. The SMCs with 0.50 wt% SiO₂ has the optimized performance with high effective permeability (94) and reduced magnetic loss (152.03 mW/cm³, at 100 kHz and 40 mT). And the influence of introduce of SiO₂ particles on the microstructure and magnetic properties was discussed.</p>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142210247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}