Applied Physics A最新文献_第7页

Magnetic and magnetocaloric properties of melt-spun ribbons of GdTbDyHoEr high entropy alloy

IF 2.5 4区材料科学

Applied Physics A Pub Date : 2025-02-07 DOI: 10.1007/s00339-025-08316-1

A. V. Svalov, D. S. Neznakhin, A. V. Arkhipov, S. V. Andreev, A. S. Rusalina, A. V. Tebenkov, A. I. Medvedev, I. V. Beketov, G. V. Kurlyandskaya

引用次数: 0

Corrosion investigation of current collector in solid state lithium sulphur batteries

IF 2.5 4区材料科学

Applied Physics A Pub Date : 2025-02-06 DOI: 10.1007/s00339-024-08187-y

Anna Taisa Dąbrowska, Natalia Izdebska, Elżbieta Żero, Martyna Smolarek, Daniel Jastrzębski, Cezariusz Jastrzębski, Grażyna Zofia Żukowska, Piotr Jankowski, Maciej Siekierski, Michał Piszcz

{"title":"Corrosion investigation of current collector in solid state lithium sulphur batteries","authors":"Anna Taisa Dąbrowska, Natalia Izdebska, Elżbieta Żero, Martyna Smolarek, Daniel Jastrzębski, Cezariusz Jastrzębski, Grażyna Zofia Żukowska, Piotr Jankowski, Maciej Siekierski, Michał Piszcz","doi":"10.1007/s00339-024-08187-y","DOIUrl":"10.1007/s00339-024-08187-y","url":null,"abstract":"<div>Polymer electrolytes are one of the most intensively studied materials nowadays as candidates for new generation solid state batteries. These types of electrolytes are indisputable materials for all Li metal batteries including lithium–sulphur (Li–S). The work presented here covers corrosion investigation of the aluminium current collector in modelled polymer electrolytes. The influence of temperature, polysulfides presence and different salts: lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) and lithium 2-trifluoromethyl-4,5-dicyanoimidazole (LiTDI) were investigated. In–situ techniques, microscope Raman spectroscopy allowed to analyse corrosion pits creation on aluminium electrodes. The investigation was supported by SEM microimaging, computational modelling and half cell cycling. Different electrochemical methods confirmed the creation of a non soluble Al2S3 product. Additionally, LiTDI salt reduces corrosion of aluminium in half cell.</div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362103","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}

引用次数: 0

Polyethylene Terephthalate (PET) Recycling: Gamma irradiation impact on crystallinity, chemical structure and thermal stability

IF 2.5 4区材料科学

Applied Physics A Pub Date : 2025-02-05 DOI: 10.1007/s00339-025-08297-1

Izzuddin Mohd Zaharuddin, Mohd Hafiz Mohd Zaid, Mohd Hamzah Harun, Yazid Yaakob, Nor Batrisya Ismail

{"title":"Polyethylene Terephthalate (PET) Recycling: Gamma irradiation impact on crystallinity, chemical structure and thermal stability","authors":"Izzuddin Mohd Zaharuddin, Mohd Hafiz Mohd Zaid, Mohd Hamzah Harun, Yazid Yaakob, Nor Batrisya Ismail","doi":"10.1007/s00339-025-08297-1","DOIUrl":"10.1007/s00339-025-08297-1","url":null,"abstract":"<div>This study explores the effects of Cobalt-60 gamma irradiation at underexplored low-doses of 0, 20, and 80 kGy on the crystallinity, chemical structure, and thermal stability of waste polyethylene terephthalate (PET). Characterization techniques, including XRD, Raman spectroscopy, DSC, and TGA, revealed that gamma irradiation modify crystallinity and thermal stability, but overall chemical characteristic is unchanging. At 20 kGy, the crystallite size increased from 59 Å to 63 Å, the melting temperature (Tm) rose from 246.2 °C to 248.4 °C, and thermal degradation and decomposition occurred 25 °C slower. XPS data showed significant chemical restructuring, with an increase in the C/O ratio from 2.89 to 4.53, indicating the breakdown of ester linkages. These findings demonstrate that optimized gamma irradiation can potentially serve as a viable pre-treatment method to improve PET recyclability, enhance crystallinity, thermal stability, and reduce energy consumption and byproduct formation in chemical recycling processes, highlighting its potential for sustainable PET waste management.</div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184648","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}

引用次数: 0

Effect of copper substitution on the structural, optical, and magnetic properties of β-Ga₂O₃ powders

IF 2.5 4区材料科学

Applied Physics A Pub Date : 2025-02-05 DOI: 10.1007/s00339-025-08293-5

Anju Babu, N. Madhusudhana Rao

{"title":"Effect of copper substitution on the structural, optical, and magnetic properties of β-Ga₂O₃ powders","authors":"Anju Babu, N. Madhusudhana Rao","doi":"10.1007/s00339-025-08293-5","DOIUrl":"10.1007/s00339-025-08293-5","url":null,"abstract":"<div>This study evaluates the structural, optical, and magnetic studies of copper-doped β-gallium oxide powders. A Hydrothermal method was employed to synthesize β-gallium oxide powder, in pure form and doped with copper at varying concentrations of Cu at 1, 2, 5, and 7 M%. Various characterization methods were employed to study the properties of the samples. Raman and XRD analyses confirmed that these powder samples exhibited a β-crystalline phase characterized by a monoclinic structure. XPS analysis verified the presence and oxidation states of Cu ions in the Cu-doped β-Ga₂O₃ samples. The powder samples’ surface morphology and elemental compositions underwent examination through SEM and EDAX analysis. The particle size distribution of the samples was studied using DLS analysis. Optical properties were studied using photoluminescence analysis and UV-vis diffuse reflectance spectroscopy. With the rise in Cu concentration, a decrease in the optical band gap was observed. UV, green, and blue emissions were observed from PL analysis. A vibrating sample magnetometer was utilized to investigate the magnetic characteristics of the samples at room temperature. The undoped sample exhibits diamagnetic behavior, while a shift towards ferromagnetism is observed as copper concentration increases. The diamagnetic characteristics of β-Ga₂O₃ limit its suitability for spintronic applications. From this work, the enhanced magnetism with Cu doping suggests that Cu-doped β-Ga₂O₃ can be useful for spintronic applications.</div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184647","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}

引用次数: 0

Synthesis and characterization of Zn3Mn0.5Li0.2Ti4−xCexO12 nanostructures: spectroscopic and electrochemical insights for enhanced storage performance

IF 2.5 4区材料科学

Applied Physics A Pub Date : 2025-02-05 DOI: 10.1007/s00339-024-08224-w

Amany M. El Nahrawy, M. K. Seddeek

{"title":"Synthesis and characterization of Zn3Mn0.5Li0.2Ti4−xCexO12 nanostructures: spectroscopic and electrochemical insights for enhanced storage performance","authors":"Amany M. El Nahrawy, M. K. Seddeek","doi":"10.1007/s00339-024-08224-w","DOIUrl":"10.1007/s00339-024-08224-w","url":null,"abstract":"<div>A series of zinc manganese lithium titanate nanoparticles doped with cerium (Ce) was successfully prepared using the sol-gel technique. The study employed X-ray diffraction (XRD), transmission electron microscopy (TEM), diffuse reflectance, and dielectric spectroscopies to identify nanoparticles and investigate the crystalline structure, dielectric properties, and electrochemical behavior of Zn3Mn0.5Li0.2Ti4−xCexO12 with different cerium concentrations (x = 0.0, 0.2, 0.6, and 1 mol%). The spherical-nanoparticles were produced by the sol-gel technique and calcinated at 700 °C for 4 h. The optical properties of Z Zn3Mn0.5Li0.2Ti4O12 co-doped with CeO₂ were analyzed using diffuse reflectance spectroscopy. The variation in the absorption edge with different CeO₂ content indicates changes in the material’s band gap and electronic structure. The impact of Ce³⁺ on the dielectric properties was also investigated. The improvement in electrochemical performance is attributed to internal rearrangements within the Zn3Mn0.5Li0.2Ti4O12 nanostructure, driven by the presence of Ce³⁺ ions. The capacitance of Zn3Mn0.5Li0.2Ti4O12 ranges from 41.58 to 38.28 F·g⁻¹ with varying the Ce3+ concentration from 0 to 1 mol% at a scan rate of 10 mV·s⁻¹. Additionally, EIS highlights the potential of these nanoceramics for energy storage applications. These findings supply priceless insights into how Ce co-doping affects the suitability of these nanostructures for electronic devices, solar cells, and energy storage implementations.</div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184650","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}

引用次数: 0

Influence of cobalt redox couple concentration on the characteristics of liquid and quasi-solid electrolytes and on the photovoltaic parameters of dye-sensitised solar cells

IF 2.5 4区材料科学

Applied Physics A Pub Date : 2025-02-05 DOI: 10.1007/s00339-025-08279-3

Kashan Ahmad, Ahad Hussain Javed, Nadia Shahzad, Muhammad Imran Shahzad, Zuhair S. Khan, Naseem Iqbal, Memoona Qammar, Adriano Sacco, Diego Pugliese

{"title":"Influence of cobalt redox couple concentration on the characteristics of liquid and quasi-solid electrolytes and on the photovoltaic parameters of dye-sensitised solar cells","authors":"Kashan Ahmad, Ahad Hussain Javed, Nadia Shahzad, Muhammad Imran Shahzad, Zuhair S. Khan, Naseem Iqbal, Memoona Qammar, Adriano Sacco, Diego Pugliese","doi":"10.1007/s00339-025-08279-3","DOIUrl":"10.1007/s00339-025-08279-3","url":null,"abstract":"<div>Dye-sensitised solar cell (DSSC) is a next-generation solar energy conversion device. The electrolyte, which is one of the key components of a DSSC, greatly affects its short-circuit current density (Jsc) and open-circuit voltage (Voc) and hence, its overall performance. In this work, bis(trifluoromethane)sulfonimide (TFSI) cobalt complex was used for the first time as redox couple in DSSC, and an effort was carried out to study the effects of the varying concentration of cobalt complex redox ions on the characteristics of the prepared liquid electrolytes (LEs) and quasi-solid electrolytes (QEs), and on the photovoltaic parameters of DSSCs. Specifically, the electrolyte characteristics include the viscosity and electrical conductivity, while the photovoltaic parameters of DSSCs include Jsc, Voc, fill factor (FF) and power conversion efficiency (PCE). The viscosity of electrolytes was found to increase with increasing molar concentrations and then further increased with the addition of polyethylene oxide (PEO); the highest viscosity of 2.49 cP was obtained at 44 rpm for QE-50. The highest conductivity measured by electrochemical impedance spectroscopy was 83 mS cm− 1 for LE-50. Finally, zinc oxide-based DSSCs with platinum counter electrodes were fabricated for current-voltage measurements. Among the synthesised electrolytes, QE-35-based DSSC showed a better combination of Jsc and Voc, resulting in a PCE of 0.48%.<h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184649","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}

引用次数: 0

Inclusive DFT studies on electronic, optical, mechanical, elastic, X-ray diffraction, thermodynamic, and spectroscopic analysis of cubic BaCeO3 under high hydrostatic stress

IF 2.5 4区材料科学

Applied Physics A Pub Date : 2025-02-04 DOI: 10.1007/s00339-025-08274-8

Sana Ullah Sahar, Hafiz T. Ali, S. M. Junaid Zaidi, Kh. Abd El-Aziz, M. Ijaz Khan

{"title":"Inclusive DFT studies on electronic, optical, mechanical, elastic, X-ray diffraction, thermodynamic, and spectroscopic analysis of cubic BaCeO3 under high hydrostatic stress","authors":"Sana Ullah Sahar, Hafiz T. Ali, S. M. Junaid Zaidi, Kh. Abd El-Aziz, M. Ijaz Khan","doi":"10.1007/s00339-025-08274-8","DOIUrl":"10.1007/s00339-025-08274-8","url":null,"abstract":"<div>This study investigates the modulation of various characteristics of BaCeO3 under hydrostatic stress using the ultrasoft pseudopotential method and the generalized gradient approximation approach. The structural, electronic, mechanical, optical, and thermodynamic properties were computed, alongside spectroscopic and structural characterization. The results revealed that, despite a 33% reduction in lattice volume and a 12% decrease in lattice parameters due to applied hydrostatic stress, the crystal lattice retained its cubic structure, with no phase transition observed. The electronic band gap varied from 2.641 eV to 2.711 eV under stresses of 0–50 GPa and decreased to 1.65 eV at 100 GPa. Hydrostatic stress influences not only the electronic structure but also optical properties such as reflectivity, refractive index, absorption, energy loss function, and dielectric function. The increased absorption peak intensity and the shift of these peaks to higher energies suggested a blueshift, indicating the material’s suitability for optoelectronic applications. Mechanical parameters, including bulk, shear, and Young’s moduli, confirmed the material’s stiffness, mechanical stability, and resistance to shear deformation. Under stress, the material was found to be less compressible, stiffer to shear stress, and less elastic. Thermodynamic analysis showed that, as stress increased, the total enthalpy, entropy, and heat capacity of the material decreased, while the average atomic vibrations and equilibrium state improved.</div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108026","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}

引用次数: 0

Role of atomic vacancies and second-neighbor antiferromagnetic-exchange coupling in a ferromagnetic nanoparticle

IF 2.5 4区材料科学

Applied Physics A Pub Date : 2025-02-04 DOI: 10.1007/s00339-025-08265-9

Harun Al Rashid, Muskan Sharma, Shruti, Dheeraj Kumar Singh

引用次数: 0

Studies on magnetron sputtered niobium thin films: influence of deposition angle of sputtered atoms

IF 2.5 4区材料科学

Applied Physics A Pub Date : 2025-02-04 DOI: 10.1007/s00339-025-08268-6

P. N. Rao, M. K. Swami, Amrit Ghosh, R. Jangir, S. K. Rai

{"title":"Studies on magnetron sputtered niobium thin films: influence of deposition angle of sputtered atoms","authors":"P. N. Rao, M. K. Swami, Amrit Ghosh, R. Jangir, S. K. Rai","doi":"10.1007/s00339-025-08268-6","DOIUrl":"10.1007/s00339-025-08268-6","url":null,"abstract":"<div>The present study investigated the influence of deposition angle of sputtered atoms on the microstructure, morphology, mechanical and electrical properties of niobium (Nb) thin films by varying it from 0° to 50° in a step of 10°. It was found that the deposition rate follows cosine distribution with deposition angle. The root mean square (rms) surface roughness increases from 0.40 ± 0.05 to 1.5 ± 0.2 nm, and density decreases from 8.5 to 7.7 (± 0.2) g/c.c as the deposition angle increases while no significant change in crystallites size was observed. Room temperature electrical resistivity rises from 79 to 293 µΩ-cm with increasing deposition angle due to enhanced electron scattering. The residual stresses remain compressive but shift towards tensile as the deposition angle increases. Atomic force microscopy confirms the increase in surface roughness and showing columnar growth at higher deposition angle. This work provides some insights into the how the deposition angle of sputtered atoms affects the growth of Nb films and optimal deposition angular range of sputtered atoms to coat Nb films on irregular surfaces.</div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00339-025-08268-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cryogenic magnetic properties and magnetocaloric performance in the RE(Fe0.25Co0.75)2H3 (RE = Ho and Er) laves phase compounds

IF 2.5 4区材料科学

Applied Physics A Pub Date : 2025-02-04 DOI: 10.1007/s00339-025-08294-4

I. Chaaba, R. M’nassri

{"title":"Cryogenic magnetic properties and magnetocaloric performance in the RE(Fe0.25Co0.75)2H3 (RE = Ho and Er) laves phase compounds","authors":"I. Chaaba, R. M’nassri","doi":"10.1007/s00339-025-08294-4","DOIUrl":"10.1007/s00339-025-08294-4","url":null,"abstract":"<div>Exploiting the magnetocaloric effect for low-temperature magnetic refrigeration presents a compelling green technology for cryogenic applications in space science and hydrogen liquefaction. In this work, we investigate the structural and magnetic properties of RE(Fe0.25Co0.75)2H3 compounds, where RE represents Ho and Er. These compounds crystallize in the cubic MgCu2 (C15) structure with a lattice parameter of 7.62 Å for RE = Ho and 7.60 Å for RE = Er. Magnetization measurements as a function of temperature, performed in a 0.05 T magnetic field, reveal that both hydrides exhibit ferrimagnetic behaviour. The Curie temperatures (TC) for Ho and Er hydrides were determined to be 124 K and 75 K, respectively. We studied the magnetic entropy change (−∆SM) and refrigerant capacity (RC) of both samples by measuring isothermal magnetizations under various field changes between 0 and 7 Tesla. With increasing applied field, both −∆SM and RC increase, and the temperature span of the −∆SM versus T plots widens. Furthermore, from the −∆SM (T) curves under an external magnetic field change of 5 T, we observed a maximum -ΔSM of ∼ 3.11 and 4.41 Jkg-1K-1 for RE = Ho and Er, respectively. The corresponding temperature-averaged entropy change over a 10 K temperature span was TEC10K ∼2.9 and ∼3.8 Jkg-1K-1 for RE = Ho and Er, respectively. These results indicate that Er(Fe0.25Co0.75)2H3 exhibits superior thermomagnetic properties compared to Ho(Fe0.25Co0.75)2H3 particularly for low-temperature magnetic cooling applications.</div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108028","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}

引用次数: 0