Journal of Materials Science: Materials in Electronics最新文献

{"title":"Poly(ortho-aminophenol)/polypyrrole blend for solar cell applications","authors":"M. H. Abdel-Aziz,&nbsp;A. Attar,&nbsp;I. K. Mohamed,&nbsp;A. F. Al-Hossainy,&nbsp;M. Sh. Zoromba","doi":"10.1007/s10854-024-13947-w","DOIUrl":"10.1007/s10854-024-13947-w","url":null,"abstract":"<div><p>HCl-doped conducting poly(ortho-aminophenol) and polypyrrole blend (POAP/PPy) was synthesized in aqueous media using ferric chloride as an oxidant and sodium dodecyl sulfate as a soft template. To expand upon previous research in this area, the present copolymer was characterized using ATR-Raman spectroscopy, scanning electron microscopy (SEM), and X-ray diffraction (XRD). XRD analysis revealed an orthorhombic crystal structure for the POAP/PPy blend with a Pnn2 space group, while SEM determined an average crystallite size of 69.44 nm. The optical properties of POAP/PPy films were investigated through UV–Vis spectroscopy. Additionally, computational modeling involving time-dependent density-functional theory (TD-DFT), optimized using TD-DFTD/Mol³ and TD-FDT/CASTEP, was employed to study the molecular geometry. ATR-Raman spectra derived from TD-DFT calculations suggest an interaction between the two monomers, leading to the formation of copolymer nanofiber thin films. The promising characteristics of the resulting polymer blend thin film indicate its potential as a suitable material for polymer solar cell applications.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"35 35","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142790418","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":"Structural, optical and magnetic analysis of Zn0.95Ni0.05Se nanoparticles with annealing temperature","authors":"Sonia Sheokand,&nbsp;Dharamvir Singh Ahlawat,&nbsp;Nitesh Choudhary","doi":"10.1007/s10854-024-13991-6","DOIUrl":"10.1007/s10854-024-13991-6","url":null,"abstract":"<div><p>In the present study, Zn_0.95Ni_0.05Se nanoparticles are synthesized using co-precipitation method. Four samples prepared at different annealing temperatures 200, 400, 600 and 800 °C. Structural properties of Zn_0.95Ni_0.05Se nanoparticles are understood by using XRD (X-ray diffraction) analysis which confirms increment in crystallite size from 8 to 16 nm along with phase transformation from cubic to hexagonal as the annealing temperature increased from 200 to 800 °C. TEM (Transmission electron microscopy) analysis also confirms the formation of nano-size particles in prepared samples. FE-SEM (Field Emission-Scanning Electron Microscope) analysis of nanoparticles has explained morphological behaviour and EDX (Energy-Dispersive X-ray) spectroscopy confirms formation of ZnO nanoparticles at higher temperature. FTIR (Fourier transform infra-red) spectroscopy analysis is confirming the presence of different functional groups in nanoparticles at different annealing temperatures. Optical energy band-gap has decreased from 4.97 to 4.8 eV as annealing temperature increased from 200 to 800 °C due to enhancement in nanoparticles’ size observed by UV–visible spectroscopy. The analysis of magnetic properties of nanoparticles is carried out by using VSM (Vibrating-Sample Magnetometer) with ESR (Electron Spin Resonance) techniques. VSM analysis of these nanoparticles shows ferromagnetic behaviour however as annealing is increased above 400 °C ferromagnetism disappears from Zn_0.95Ni_0.05Se nanoparticles showing diamagnetic properties. These VSM results are also confirmed by ESR observations.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"35 35","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142789296","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":"Investigations on flexible dielectric material-based wearable antenna for tumor detection","authors":"T. A. Karthikeyan,&nbsp;M. Nesasudha,&nbsp;M. L. Valarmathi","doi":"10.1007/s10854-024-13953-y","DOIUrl":"10.1007/s10854-024-13953-y","url":null,"abstract":"<div><p>In this paper, the design and comparative evaluation of five distinct substrate materials with variable relative permittivity values (2.71, 1.65, 1.51, 1.36, and 1.05), namely Polydimethylsiloxane (PDMS), Jean, Cotton, Felt, and Foam. The performance of the microstrip patch antenna is largely dependent on the dielectric materials used as the substrate and the patch shapes. Two approaches are used to carry out the analysis: in the first, five substrates with identical dimensions are used on the antenna and different frequencies are obtained. It is observed that when the dielectric constant decreases the frequency of the antenna shift towards right side. In the second method, to obtain the same frequency (2.45 GHz ISM band) five substrates with different dimensions are used on the antenna. Though the dimensions of the antenna varies but the number of Faces, Edges, and Vertices are same. The proposed antenna design is simulated in HFSS and Fabricated using synthesized PDMS substrate. The field overlays difference between the healthy and tumor affected phantom depicts the presence of tumor.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"35 35","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142789309","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":"Effect of calcination temperature on the microstructure and electrochemical performance of NaFePO4/C cathode materials for sodium-ion battery","authors":"Chunmei Tang,&nbsp;Shuxin Liu,&nbsp;Jichuan Huo,&nbsp;Wei Ma,&nbsp;Jing Li,&nbsp;Ning Chen","doi":"10.1007/s10854-024-13986-3","DOIUrl":"10.1007/s10854-024-13986-3","url":null,"abstract":"<div><p>Among the various types of cathode materials for sodium-ion batteries, NaFePO₄ has attracted much attention due to its high theoretical capacity (155 mAh g⁻¹), low cost, and high structural stability. However, the thermodynamically stable maricite form of NaFePO₄ is regarded as electrochemically inactive because of its closed framework, which lacks pathways for Na⁺ diffusion. While numerous modification techniques exist, many require substantial energy input. In this study, the NaFePO₄/C cathode materials with amorphous and maricite phases were in situ constructed through an extremely simple sol–gel method at different calcination temperatures without incorporating other complicated technology. All of the microstructure, phase components, particle size, and specific surface of NaFePO₄/C cathode materials were well controlled by this one-step method. Among them, the NaFePO₄/C with amorphous and maricite phases calcined at 450 °C had an excellent electrochemical performance, the discharge specific capacity maintained at 123.6 mAh g⁻¹ after 10 cycles and becomes stable, and the capacity decay rate was only 4.00% after 100 cycles at 0.1 C at room temperature, Na⁺ diffusion coefficient of 1.026 × 10^–17 cm² s⁻¹, and charge transfer resistance of 998.6 Ω.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"35 35","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142789310","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":"Oxygen vacancies and octahedral distortion induced bandgap narrowing in [KNbO3](1−x)–[Ba(Ni0.1Zn0.3Nb0.6)O3−δ]x perovskites for visible-light photocatalysis: a combined experimental and theoretical study","authors":"Rajender Prasad Tiwari,&nbsp;Ankit Chahar,&nbsp;Balaji Birajdar","doi":"10.1007/s10854-024-13995-2","DOIUrl":"10.1007/s10854-024-13995-2","url":null,"abstract":"<div><p>Visible-light photocatalysis offers a sustainable approach to environmental remediation and renewable energy generation. However, traditional photocatalysts often require ultraviolet light, which limits their efficiency in utilizing sunlight. In this study we address this challenge by exploring the potential of [KNbO₃]_{(1−<i>x</i>)}–[Ba(Ni_0.1Zn_0.3Nb_0.6)O_3−δ]_<i>x</i> perovskites for visible-light photocatalysis. Incorporation of Ba(Ni_0.1Zn_0.3Nb_0.6)O_3−δ into KNbO₃ results in a structural phase transition from orthorhombic (at <i>x</i> = 0) to pseudo cubic (at <i>x</i> = 0.3) and reduces the bandgap from 3.14 eV to 1.1–2.0 eV, enhancing visible-light absorption. Theoretical models are investigated using the density functional theory (DFT) to provide the underlying physics, revealing that the incorporation of Zn²⁺/Ni²⁺ at the B-site introduces 3<i>d</i> states in the conduction band, and oxygen vacancies create impurity states near the valence band edge, which lower the bandgap. Additionally, octahedral distortion splits the degenerate Nb <span>(4d_{{z^{2} }})</span> and <span>(4d_{{x^{2} - y^{2} }})</span> orbitals, shifting them closer to the Fermi level and further contributing to the reduction of the bandgap. This combined experimental and theoretical approach provides valuable insights for designing visible-light-active ferroelectric perovskite oxides for enhanced photocatalytic applications.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"35 35","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142789312","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 of nonlinear optical metal-organic framework dizinc tetraglycinate dihydrate with optical limiting applications","authors":"K. C. Bright,&nbsp;R. N. Anila,&nbsp;B. Anugop,&nbsp;M. .Kailasnath","doi":"10.1007/s10854-024-13978-3","DOIUrl":"10.1007/s10854-024-13978-3","url":null,"abstract":"<div><p>Single crystals of dizinc tetraglycinate dihydrate have been synthesized by the slow evaporation solution growth technique and it was characterized by Single-crystal X-ray Diffraction (SXRD), Powder X-ray Diffraction (PXRD), Hirshfeld surface analysis, Ultraviolet–Visible-Near-Infrared analysis (UV–Vis-NIR), Thermogravimetric-differential thermal analysis (TG/DTA), Photoluminescence (PL) study, Fourier Transform Infrared Spectroscopy (FT-IR), Second Harmonic Generation (SHG), Z scan measurements, and laser threshold power density study. From the structure, the metal part Zn (II) forms five membered fused ring structure. The PXRD study proved the crystalline nature of the material. Williamson–Hall method is used to calculate the lattice strain and crystalline size of the grown crystal. The Hirshfeld surface analysis shows the major contributions of intermolecular interactions. Optical parameters transmittance, band gap, and refractive index were calculated. Wemple–DiDomenico single-oscillator model determine the nature of refractive index below the energy gap. PL analysis revealed the photo-luminescence property of the crystal. The TG/DTA analysis confirmed its thermal stability. From C-R plot, the kinetic and thermodynamic parameters of crystal Dizinc Tetraglycinate Dihydrate (DZTGD) have been calculated. All the functional groups were determined by the FT-IR analysis. The laser threshold power density of the crystal was elucidated. The title compound shows second- and third-order non-linear responses.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"35 35","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142789311","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":"Optically tunable magnetoresistance properties in La0.7Sr0.3MnO3-Glass nanocomposites: A step towards Optospintronics","authors":"Nitish Ghosh,&nbsp;Debajit Deb,&nbsp;P. Dey","doi":"10.1007/s10854-024-13844-2","DOIUrl":"10.1007/s10854-024-13844-2","url":null,"abstract":"<div><p>Perovskite manganites are interesting materials in spintronic devices due to their significant magneto-transport properties. Here, magneto-transport study has been carried out on structurally characterized (100−x) % La_<b>0.7</b>Sr_<b>0.3</b>MnO_<b>3</b>-x%Glass composites (<i>x</i> = 0(S1), 0.2(S2), 0.5(S3)). Our experiments provide evidences of largest MR (17%) for S2 sample, whereas 2% and 12% for S1 and S3 samples, respectively. Experimental MR vs <i>H</i> curves have been fitted employing a phenomenological model (Raychaudhuri et al. in J. Appl. Phys. 84:2048–2052, 1998) which indicates that it is the spin polarized tunnelling MR, which get modulated as a function of glass content. The surface spin susceptibility ^χ_<i>b</i> exhibits similar crossover behaviour with glass content in the composite. Such intriguing correlation of glass content dependence of ^χ_<i>b</i> and MR<b><i>spt</i></b> strongly suggest that ^χ_<i>b</i> i.e., the second order tunnelling across the interfacial region between adjacent LSMO grains governs SPT process and hence non-monotonic variation of MR<b><i>spt</i></b> with glass content. Optical tuning of SPTMR in the samples has also been investigated by 660 nm red laser light illumination. Non-monotonic photo-response exhibiting maximum photocurrent in S2 sample has been attributed to glass content ratio dependent exciton dissociation at interfacial region. Under illumination, decoherence and misalignment of surface spins seem to result in decrease in SPT magnetoresistance. Interfacial region of S2 sample has been found to be highly sensitive to optical illumination in which both <i>χ</i>_<i>b</i> and MR<b><i>spt</i></b> have been observed to switch their values from negative to positive ones. Large MR<b><i>spt</i></b> and switching of sign of MR<b><i>spt</i></b> with light illumination propose S2 nanocomposite as potential candidate for future Optospintronics applications.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"35 35","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142789297","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":"Correction: Enhancement of energy storage performance of supercapacitors based on MoS2-g-C3N4 Nanocomposite electrodes","authors":"M. Vidhya,&nbsp;T. M. Selvakumari,&nbsp;R. Marnadu,&nbsp;P. Rajapandi,&nbsp;M. Aslam Manthrammel,&nbsp;Mohd. Shkir","doi":"10.1007/s10854-024-14010-4","DOIUrl":"10.1007/s10854-024-14010-4","url":null,"abstract":"","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"35 35","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778234","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":"Growth and characterization of malonic acid-doped KDP single crystal","authors":"S. Amirsha Evangelin Kezia,&nbsp;N. Balasundari,&nbsp;A. Arulgnanam,&nbsp;K. Parvathi,&nbsp;P. Selvarajan","doi":"10.1007/s10854-024-13940-3","DOIUrl":"10.1007/s10854-024-13940-3","url":null,"abstract":"<div><p>A single crystal of malonic acid-doped potassium dihydrogen phosphate (MAKDP) has been synthesized by the solution method with a slow evaporation technique. The grown single crystal's lattice parameters and crystal structure were resolved by using the single crystal X-ray diffraction analysis. The optical characteristics of the crystals, including transmission absorption and optical constants, were examined using UV–Visible spectroscopy. Kurtz–Perry powder technique was known to determine the second-harmonic generation efficiency. The chemical composition of the harvested crystal were characterized by EDAX analysis. Thermal stability and the melting point of MAKDP crystal have been analyzed by Thermogravimetric analysis (TGA), and differential thermal analysis (DTA) techniques. The luminescence of the MAKDP crystal is found out by using photoluminescence spectroscopy and cyclic voltammetry was also used to analyze the MAKDP crystal's electrochemical behavior. Also, the value of LDT has been found for the sample by using a Nd:YAG laser.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"35 35","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778541","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":"Effect of B2O3 substitution for Al2O3 on the structure and properties of calcium aluminosilicate glass","authors":"Xinjie Qin,&nbsp;Zecong Wei,&nbsp;Zhenhua Fan,&nbsp;Dehua Xiong,&nbsp;Yingxin Wang,&nbsp;Zhou Teng,&nbsp;Jihong Zhang,&nbsp;Jun Xie","doi":"10.1007/s10854-024-13982-7","DOIUrl":"10.1007/s10854-024-13982-7","url":null,"abstract":"<div><p>Calcium aluminosilicate (CaO-Al₂O₃-SiO₂, CAS) glass, with varying B₂O₃ to Al₂O₃ substitutions, was prepared using the melting method. The network structure of this CAS glass was analyzed through Raman spectroscopy and nuclear magnetic resonance spectroscopy. The results showed as the B₂O₃ to Al₂O₃ substitution increased, the proportion of [BO₄] gradually decreased from 57.2 to 41.6%, while the proportion of [BO₃] increased from 42.8 to 58.4%. The primary form of Al³⁺ mainly exists in the glass network structure is [AlO₄]. The Qⁿ group is dominated by Q² (25.6 ~ 35.0%) units and Q³ (51.8 ~ 65.5%) units. As the B₂O₃ substitution for Al₂O₃ increased, there was a gradual decrease in Q¹ and Q² units, and a corresponding increase in Q³ units and Q⁴ units, leading to an increase in the degree of polymerization of glass network structure. However, the substitution also reduced the stability of the glass network structure. While the replacement of Al₂O₃ by B₂O₃ diminished the hardness, bending strength, expansion softening temperature and other properties of the glass, it significantly reduced the viscous activation energy, melting temperature, and forming temperature of the glass. These changes have significant implications for practical industrial production.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"35 35","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142789169","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}