Journal of Materials Science: Materials in Electronics最新文献

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Development of flake-rod like SrO thin films via SILAR method for efficient energy storage in supercapacitors
IF 2.8 4区 工程技术
Journal of Materials Science: Materials in Electronics Pub Date : 2025-03-03 DOI: 10.1007/s10854-025-14330-z
Rushikesh G. Bobade, Akhil P. Khedulkar, Rahul S. Ingole, Vikas B. Suryawanshi, Shoyebmohamad F. Shaikh, Revanappa C. Ambare
{"title":"Development of flake-rod like SrO thin films via SILAR method for efficient energy storage in supercapacitors","authors":"Rushikesh G. Bobade,&nbsp;Akhil P. Khedulkar,&nbsp;Rahul S. Ingole,&nbsp;Vikas B. Suryawanshi,&nbsp;Shoyebmohamad F. Shaikh,&nbsp;Revanappa C. Ambare","doi":"10.1007/s10854-025-14330-z","DOIUrl":"10.1007/s10854-025-14330-z","url":null,"abstract":"<div><p>The SrO thin films electrode was successfully synthesized using the Successive Ionic Layer Adsorption and Reaction (SILAR) technique, exhibiting a well-defined cubic crystalline structure with an average crystallite size of 18 nm, as confirmed through XRD analysis. The films demonstrated a flake-rod like morphology, which provided a high surface area and facilitated efficient ion diffusion, thereby enhancing their electrochemical performance. Electrochemical measurements revealed a specific capacitance (<i>Cs</i><sub>(cv)</sub>) of 599.5 F/g at a sweep rate of 5 mV/s, coupled with outstanding cycling stability, retentive 83.4% of an initial capacitance after 6000 cycles. Additionally, the Ragone plot analysis indicated a good balance between energy density as well power density, underscoring a potential of SrO thin films electrode as a promising material for higher performance supercapacitors.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"36 7","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143530015","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}
引用次数: 0
Impact of rare-earth ions (Ce, La, Sm) doping on the lattice structure and magnetic characteristics of barium cobalt nano-ferrite
IF 2.8 4区 工程技术
Journal of Materials Science: Materials in Electronics Pub Date : 2025-03-03 DOI: 10.1007/s10854-025-14267-3
Zhaxi Suonan, Yingqiang Han
{"title":"Impact of rare-earth ions (Ce, La, Sm) doping on the lattice structure and magnetic characteristics of barium cobalt nano-ferrite","authors":"Zhaxi Suonan,&nbsp;Yingqiang Han","doi":"10.1007/s10854-025-14267-3","DOIUrl":"10.1007/s10854-025-14267-3","url":null,"abstract":"<div><p>In order to optimize the structure and magnetic properties of Ba-CO nano-ferrite, rare-earth ions-doped Ba<sub>0.2</sub>Co<sub>0.8</sub>Fe<sub>2-x</sub>RE<sub>x</sub>O<sub>4</sub> (RE = Sm, Ce, La and x = 0.02) nanopowder was prepared by sol–gel method at 950 °C. X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR) were used for the structural analysis. The presence of few additional phases (BaFe<sub>2</sub>O<sub>4</sub>) was found in the doped samples. After the RE ions doping, the lattice constant calculated from the XRD patterns increased to 8.3791 Å. The morphology of the material was studied using scanning electron microscopy (SEM), transmission electron microscopy (TEM), and selected area electron diffraction (SAED). Energy-dispersive spectrometer analysis (EDS) confirmed that there are corresponding rare-earth elements, as well as Ba, Co, and O elements in the sample. The binding energy of La-doped barium cobalt nano-ferrite was studied by X-ray photoelectron spectroscopy. The peak of Ba<sup>2+</sup> 3<i>d</i><sub><i>3/2</i></sub> is observed at the binding energy of 795.22 eV, while the peak of Ba<sup>2+</sup> 3<i>d</i><sub><i>5/2</i></sub> appears at the binding energy of 779.97 eV. Co<sup>2+</sup> and Fe<sup>3+</sup> contributions to octahedron and tetrahedron are calculated. The magnetic properties of the samples were studied using a vibrating sample magnetometer (VSM). We found that the saturation magnetization (<i>M</i>s) of Ba<sub>0.2</sub>Co<sub>0.8</sub>Fe<sub>2</sub>La<sub>0.02</sub>O<sub>4</sub> nano-ferrite was higher compared to other samples, Which provides references for other investigators.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"36 7","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143530016","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}
引用次数: 0
Improvment of electrocaloric energy storage properties in eco-friendly 0.63Na0.5Bi0.5TiO3-0.37SrTiO3-NaNbO3 ceramic synthesized by sol–gel route
IF 2.8 4区 工程技术
Journal of Materials Science: Materials in Electronics Pub Date : 2025-03-03 DOI: 10.1007/s10854-025-14471-1
P. Eswara Satyanarayana, Kasaram Roja, N. Giridhar Babu, Bharat Kumar Dhangar, Sk. Akram, G. Bhanu kiran, Thiriveedhi Narendrudu, N. Ch. Ramesh Babu, A. Kalpana
{"title":"Improvment of electrocaloric energy storage properties in eco-friendly 0.63Na0.5Bi0.5TiO3-0.37SrTiO3-NaNbO3 ceramic synthesized by sol–gel route","authors":"P. Eswara Satyanarayana,&nbsp;Kasaram Roja,&nbsp;N. Giridhar Babu,&nbsp;Bharat Kumar Dhangar,&nbsp;Sk. Akram,&nbsp;G. Bhanu kiran,&nbsp;Thiriveedhi Narendrudu,&nbsp;N. Ch. Ramesh Babu,&nbsp;A. Kalpana","doi":"10.1007/s10854-025-14471-1","DOIUrl":"10.1007/s10854-025-14471-1","url":null,"abstract":"<div><p>The conventional solid-state reaction technique was used to create the lead-free ceramic composition of 0.63Na<sub>0.5</sub>Bi<sub>0.5</sub>TiO<sub>3</sub>–0.37SrTiO<sub>3</sub>–NaNbO<sub>3</sub>. A single-phase monoclinic crystal structure with <i>Cc</i> symmetry and a tetragonal <i>P4mm</i> phase has been confirmed using X-ray diffraction studies. Polarization and strain evaluated under an applied electric field have been employed to demonstrate whether these ceramics switched from ferroelectric to antiferroelectric characteristics. Surprisingly, with an electric field of 25 kV/cm, the induced electrocaloric effect (ECE) for the 0.63Na<sub>0.5</sub>Bi<sub>0.5</sub>TiO<sub>3</sub>–0.37SrTiO<sub>3</sub>–NaNbO<sub>3</sub> ceramic exhibited a notable temperature change (ΔT) that was nearly 2.59 K. Furthermore, a high energy density of 3.96 J/cm<sup>3</sup> and efficiency of 80.13% were observed throughout a broad range of temperatures and frequencies, from 30 °C to 150 °C and 1 Hz, respectively, using an electric field with an intensity of 150 kV/cm. The ECE response and isothermal entropy change (ΔS) occurring simultaneously suggest that there is a great deal of potential for use in electronic devices.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"36 7","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143530017","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}
引用次数: 0
Silicon-based narrowband photodetectors with blade-coated perovskite light extinction layer for high performance visible-blind NIR detection
IF 2.8 4区 工程技术
Journal of Materials Science: Materials in Electronics Pub Date : 2025-03-01 DOI: 10.1007/s10854-025-14454-2
Qihao Huang, Liting Tao, Hongliang Zhu, Wenxin Lin, Jianjun Chen, Yanjun Fang
{"title":"Silicon-based narrowband photodetectors with blade-coated perovskite light extinction layer for high performance visible-blind NIR detection","authors":"Qihao Huang,&nbsp;Liting Tao,&nbsp;Hongliang Zhu,&nbsp;Wenxin Lin,&nbsp;Jianjun Chen,&nbsp;Yanjun Fang","doi":"10.1007/s10854-025-14454-2","DOIUrl":"10.1007/s10854-025-14454-2","url":null,"abstract":"<div><p>NIR narrowband imaging is highly desirable for its applications in biological sensing, environmental monitoring and military defense. Unfortunately, it cannot be fulfilled by the most widely used silicon-based photodetectors due to their broadband response. Herein, we present novel silicon-based narrowband photodetectors (Si-NBPDs) with the wavelength response ranging from 800 to 1200 nm, by integrating the perovskite light extinction layer with the Si-based metal–semiconductor-metal photodetectors. The perovskite layer was prepared by a low-cost and scalable methylamine-assisted blading-coating method, and its thickness was comprehensively modulated to achieve the highest visible to NIR rejection ratio up to 120. Impressively, these Si-NBPDs exhibited a high sensitivity with the lowest detectable light intensity down to 200 pW·cm<sup>−2</sup>, a fast response speed with rise/fall time of 11/68 µs, and a large liner dynamic range of 120 dB. Furthermore, the proof-of-concept NIR imaging test exhibited that this photodetector was immune to visible background influence, which shows its promising applications in biological fluorescence imaging as the NIR-I&amp;II windows.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"36 7","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521656","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}
引用次数: 0
Crystal growth, structural, computational, experimental analysis, and N–H…O hydrogen bonding interaction of 2,6-diaminopyridinium hydrogen malonate: a potential non-linear optical material
IF 2.8 4区 工程技术
Journal of Materials Science: Materials in Electronics Pub Date : 2025-03-01 DOI: 10.1007/s10854-025-14469-9
D. Beryl Jacksy, D. Arul Dhas, I. Hubert Joe, G. Vinitha
{"title":"Crystal growth, structural, computational, experimental analysis, and N–H…O hydrogen bonding interaction of 2,6-diaminopyridinium hydrogen malonate: a potential non-linear optical material","authors":"D. Beryl Jacksy,&nbsp;D. Arul Dhas,&nbsp;I. Hubert Joe,&nbsp;G. Vinitha","doi":"10.1007/s10854-025-14469-9","DOIUrl":"10.1007/s10854-025-14469-9","url":null,"abstract":"<div><p>An organic complex derived from 2,6-diaminopyridinium hydrogen malonate (DAPMAL) was studied for its crystal growth, structure and properties including its non-linear optical (NLO) behavior. Single-crystal X-ray diffraction (SXRD) confirmed a monoclinic crystalline structure with a C2/c (15) space group. Density functional theory (DFT) calculations using the B3LYP/6311G(d, p) approach revealed significant hyperpolarizability indicative of strong NLO behavior. The natural bond orbital analysis is performed to identify hydrogen bonding and charge transfer interaction. A combined experimental and theoretical quantum chemical calculation has been accomplished to examine the molecule’s geometry, vibrational wavenumber, electronic transition, and NLO activity. Molecular electrostatic potential and are carried out to identify chemical reactivity and charge transfer interaction. The HOMO–LUMO energy gap for DAPMAL was calculated to be 5.926 eV at the B3LYP/6-311G(d,p) level of theory. The hole–electron analysis was performed to determine the type of excitation. Reduced density gradient is performed to identify the hydrogen bonding, steric, and van der Waals interactions. Thermal analysis (TG–DTA) shows thermal stability at 185 ℃ and decomposition patterns, while SEM–EDX is used to find the material’s purity and crystalline nature. UV–visible spectroscopy demonstrated transparency with a lower cutoff wavelength of 210 nm and fluorescence spectroscopy revealed 628 nm shows red emission. The Z-scan technique further validated 3.49E-06 the compound’s NLO potential for DAPMAL.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"36 7","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143527658","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}
引用次数: 0
Preparation and characterization of regenerated cellulose-based lithium-ion battery electrodes
IF 2.8 4区 工程技术
Journal of Materials Science: Materials in Electronics Pub Date : 2025-03-01 DOI: 10.1007/s10854-025-14463-1
Honghao Wu, Xiwen Wang
{"title":"Preparation and characterization of regenerated cellulose-based lithium-ion battery electrodes","authors":"Honghao Wu,&nbsp;Xiwen Wang","doi":"10.1007/s10854-025-14463-1","DOIUrl":"10.1007/s10854-025-14463-1","url":null,"abstract":"<div><p>In this work, the lithium iron phosphate (LiFePO<sub>4</sub>) /multi-walled carbon nanotubes (MWCNTs)/ketjen black (KB)/regenerated cellulose (RC) freestanding composite electrodes were prepared by using 1-ethyl-3-methylimidazolium diethyl phosphate ([Emim]DEP) /dimethyl sulfoxide (DMSO) as the solvent system for the application of lithium-ion battery cathode. The electrodes were characterized and analyzed by Fourier transform infrared spectra (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), cyclic voltammetry (CV), electrochemical impedance spectroscope (EIS), and constant-current charge/discharge. The results indicate that the electrodes possess a three-dimensional layered network structure comprising RC and MWCNTs intertwined and lapped. The LiFePO<sub>4</sub> and KB particles can be inlaid and distributed on the surface of the network structure or among the pores, which enhances the multi-directionality and conduction rate of electron conduction, as well as the utilization efficiency of LiFePO<sub>4</sub>. The electrode comprising a 3:1 ratio of MWCNTs to KB and a LiFePO<sub>4</sub> loading of 40 wt% performed best overall, with initial discharge specific capacities of 177.12, 143.02, and 127.12 mAh·g<sup>−1</sup> at rates of 0.1, 2, and 5 C, respectively. Moreover, the capacity retention was 99.82% after 50 cycles at 0.1 C and 94.58% after 200 cycles at 2 C. The Coulombic efficiency remained above 97% during 50 cycles at 0.1 C and above 98% during 200 cycles at 2 C. The electrodes exhibit favorable electrochemical performance and flexibility, which hopefully match the evolution of electrochemical energy storage devices toward lightweight and flexibility.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"36 7","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521659","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}
引用次数: 0
Tuning resistive switching in ZnO and TiO2 nanostructures with cobalt doping
IF 2.8 4区 工程技术
Journal of Materials Science: Materials in Electronics Pub Date : 2025-03-01 DOI: 10.1007/s10854-025-14348-3
Heiddy P. Quiroz, Cristian L. Terán, Jorge A. Calderón, A. Dussan
{"title":"Tuning resistive switching in ZnO and TiO2 nanostructures with cobalt doping","authors":"Heiddy P. Quiroz,&nbsp;Cristian L. Terán,&nbsp;Jorge A. Calderón,&nbsp;A. Dussan","doi":"10.1007/s10854-025-14348-3","DOIUrl":"10.1007/s10854-025-14348-3","url":null,"abstract":"<div><p>Resistive Random Access Memories (RRAMs) traditionally utilize a metal/insulator/metal architecture. This study introduces an innovative configuration employing metal/oxide-diluted magnetic semiconductors (O-DMS)/metal on flexible substrate, leveraging the enhanced performance of magnetic control in resistive switching. We investigated the structural, morphological, magnetic, and electrical properties of cobalt-doped ZnO and TiO<sub>2</sub> thin films, synthesized via DC magnetron sputtering. XRD measurements stablish the presence of Co<sub>3</sub>O<sub>4</sub> phases in the samples of Co-doped ZnO thin films with substrate temperature (Ts) of 423 K, while Raman spectra of Co-doped TiO<sub>2</sub> thin film not evidencing the formation of the Co–O binary phases associated to the low substrate temperature (Ts = 293 K). High-resolution SEM and AFM analyses revealed the formation of small grains on the film surfaces, indicative of the growth mechanisms. When Co target power was increased between 20 and 40 W, the grain size increased from 158.89 ± 4.76 nm to 460.97 ± 13.82 nm. Electrical and magnetic characterizations demonstrated contributions from lattice free electrons, generated by oxygen vacancies, and randomly distributed Co ions within the oxide semiconductor matrix, influencing the SET and RESET states. Comparative analysis of ZnO and TiO<sub>2</sub> matrices indicated reduced energy consumption and increased storage capacity, attributed to the modulation of high and low resistive states by magnetic ions within the semiconductor matrix, associated to change between low resistive state (LRS) and HRS occurs (~ 1–3 V).</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"36 7","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10854-025-14348-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Facile one-step synthesis of cellular S-scheme N–ZnO/g-C3N4 toward boosted visible-light-driven CO2 reduction and norfloxacin degradation
IF 2.8 4区 工程技术
Journal of Materials Science: Materials in Electronics Pub Date : 2025-03-01 DOI: 10.1007/s10854-025-14433-7
Wei Liu, Wenna Hu, Jun Zhang
{"title":"Facile one-step synthesis of cellular S-scheme N–ZnO/g-C3N4 toward boosted visible-light-driven CO2 reduction and norfloxacin degradation","authors":"Wei Liu,&nbsp;Wenna Hu,&nbsp;Jun Zhang","doi":"10.1007/s10854-025-14433-7","DOIUrl":"10.1007/s10854-025-14433-7","url":null,"abstract":"<div><p>The construction of heterostructures for precise electron-transfer paths at the interface is crucial to widespread photocatalytic applications. In this context, we have implemented a simple one-step strategy to precisely transfer electrons from the conduction band of N-doped ZnO (N–ZnO) to the valence band of g-C<sub>3</sub>N<sub>4</sub> by an S-scheme structure. The diverse structures and properties of the fabricated photocatalysts were synergistically verified using a series of characterization techniques. Notably, the direction of electron migration within this system was confirmed through X-ray photoelectron spectroscopy (XPS). The electrochemical impedance spectroscopy (EIS) demonstrated low charge transfer resistance, and photocurrent along with photoluminescence analyses showed enhanced spatial charge carriers separation capability of the heterostructures. Furthermore, the composite presented the cellular geometry and the long-term durability. These brought about the boosted photocatalytic performance for CO<sub>2</sub> reduction and norfloxacin (NOR) degradation. Specifically, the optimized composite containing 10 wt% N–ZnO (NZG-10) achieved a NOR degradation efficiency of 98.8% within 50 min, with a remarkable rate constant of 22.28 and 7.58 times that of N–ZnO and g-C<sub>3</sub>N<sub>4</sub>, respectively. Simultaneously, the NZG-10 was 2.98 times the CO yield of g-C<sub>3</sub>N<sub>4</sub>. This work offers valuable insights into developing methodologies to address the low light-harvesting capability of g-C<sub>3</sub>N<sub>4</sub> and designing other novel structural materials with desirable photocatalytic performance for widespread applications in clean energy and eco-environment management.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"36 7","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143527657","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}
引用次数: 0
Fe-incorporated NiSe2 nanostructures as an efficient electrode material for the enhanced supercapacitor applications
IF 2.8 4区 工程技术
Journal of Materials Science: Materials in Electronics Pub Date : 2025-03-01 DOI: 10.1007/s10854-025-14478-8
S. Saranya, S. Suthakaran, S. Dhanapandian
{"title":"Fe-incorporated NiSe2 nanostructures as an efficient electrode material for the enhanced supercapacitor applications","authors":"S. Saranya,&nbsp;S. Suthakaran,&nbsp;S. Dhanapandian","doi":"10.1007/s10854-025-14478-8","DOIUrl":"10.1007/s10854-025-14478-8","url":null,"abstract":"<div><p>A nickel diselenide and bimetallic nickel iron diselenide were prepared in the presence of hydrazine hydrate as a reductant by a simple hydrothermal method. The prepared composites were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), High-resolution scanning electron microscopy (HRSEM), High-resolution Tunneling electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS), Vibrating sample magnetometer, and Cyclic voltammetry. The XRD confirmed the presence of cubic and orthorhombic phases of NiSe<sub>2</sub> and NiFeSe<sub>2</sub>, respectively. HRSEM and HRTEM images showed the spherical morphology of both materials. This specific morphology allowed for efficient electron transfer, shortened ion diffusion pathways, and greater ion penetration into the electrode materials, which collectively contributed to enhanced electrochemical performance. The optimized NiFeSe<sub>2</sub> composite recorded a notable specific capacitance of 1016 Fg<sup>−1</sup> at a scan rate of 2 mV<sup>−1</sup> and its magnetic properties are indicative of antiferromagnetism.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"36 7","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143527656","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}
引用次数: 0
Parallel synthesis and physical properties of thickness graded LaCoO3
IF 2.8 4区 工程技术
Journal of Materials Science: Materials in Electronics Pub Date : 2025-03-01 DOI: 10.1007/s10854-025-14474-y
Bhargav Y. Pathak, Kuman Gagliya, Swati Pachauri, U. S. Joshi
{"title":"Parallel synthesis and physical properties of thickness graded LaCoO3","authors":"Bhargav Y. Pathak,&nbsp;Kuman Gagliya,&nbsp;Swati Pachauri,&nbsp;U. S. Joshi","doi":"10.1007/s10854-025-14474-y","DOIUrl":"10.1007/s10854-025-14474-y","url":null,"abstract":"<div><p>Functional properties of oxide films largely depend upon its thickness. In conventional one-by-one thin film deposition approach, uniform deposition with single thickness is fabricated. Here, we have employed the concepts of combinatorial chemistry in pulsed laser deposition (C-PLD) system for the deposition of LaCoO<sub>3</sub> compound. The combinatorial PLD allows one to obtain large variations of thickness onto one substrate in a single experiment. LaCoO<sub>3</sub> is chosen to demonstrate the thickness dependent optical properties. Across 9 mm of substrate, more than 30 nm systematic thickness variations were achieved on a 10 mm quartz plate. Controlled mask motion with synchronised laser pulses were introduced to fabricate continuously varying film thickness across the substrate. Structural and surface properties were examined by X-ray diffraction, Raman spectroscopy and AFM respectively. Systematic variations in the electrical resistance and optical band gap were observed with film thickness. Using this unique approach, large number of samples with controlled variation in thickness can be fabricated in single experiment and can be optimized quickly for semiconductors which can be used for tuning the physical properties in RRAMs and solar cells.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"36 7","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521658","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}
引用次数: 0
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