Applied Physics A最新文献

{"title":"Effects of annealing conditions and nanostructures on photocatalytic and degradation properties of In2O3","authors":"Bin Hou,&nbsp;Kai Ou,&nbsp;Zijun Zhu,&nbsp;Xilei Wu,&nbsp;Hongwang Zhu,&nbsp;Lingyu Liu,&nbsp;Fanggong Cai,&nbsp;Yudong Xia,&nbsp;Hongyan Wang","doi":"10.1007/s00339-024-08109-y","DOIUrl":"10.1007/s00339-024-08109-y","url":null,"abstract":"<div><p>Indium oxide (In₂O₃) is widely accepted as a photocatalyst for its unique optical and electrical properties, as well as its favorable chemical stability. This study investigated the impact of annealing conditions and morphology on photocatalytic properties, by preparing four different nanostructures of In₂O₃ using glancing angle deposition based on electron beam evaporation. The results indicated that In₂O₃ annealed at 500 °C for 4 h exhibited optimal crystallization quality and photocatalytic performance. Given the fabricated structures, the slant nanorods structure of In₂O₃ demonstrated superior photocatalytic performance, achieving a photocurrent density of 0.34 mA/cm², which was 2.1 times higher than that of the nanofilms (0.16 mA/cm²). Furthermore, this particular structure showed enhanced photodegradation efficiency for Rhodamine B with a degradation rate of 45.69%, suggesting an improvement of about 27% compared to nanofilms. The analysis of Nyquist plots revealed that the slant nanorod structure facilitated enhanced charge transfer capability, thereby significantly improved the photoelectrochemical properties.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"130 12","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mathematical modeling and investigation of intrinsic interaction mechanisms in CO2 laser processing of PMMA","authors":"Juan Song,&nbsp;Bangfu Wang,&nbsp;Qingyang Jiang,&nbsp;Xiaohong Hao","doi":"10.1007/s00339-024-08102-5","DOIUrl":"10.1007/s00339-024-08102-5","url":null,"abstract":"<div><p>The CO₂ laser is capable of efficiently processing high-quality structures on the surface of PMMA (Polymethyl methacrylate). In order to elucidate the intrinsic physical mechanisms underlying the laser processing and to optimize the processing parameters for CO₂ laser machining of PMMA, a mathematical model has been established. This model incorporates the mechanisms of thermal transfer, melting, vaporization phenomena, and the behavior of molten flow within the material under laser irradiation. The dynamics of the interaction between the CO₂ laser and PMMA were systematically explored. Following this, a comprehensive analysis was conducted on the thermodynamic distribution within the material surface processing area, the molten flow characteristics, and the vaporization recoil pressure generated during the process of evaporation ablation. The results indicate that the laser processing of PMMA predominantly occurs via evaporation ablation. It was observed that as the laser power increases, the depth of the ablation pit also gradually increases. However, this increase is accompanied by a corresponding rise in the temperature gradient within the surface layer of the material. When the temperature gradient becomes excessively high, the phenomenon of evaporation ablation introduces vaporization recoil pressure. This results in the accumulation of molten material surrounding the processed pit structure, thereby forming raised structures. Overall, to achieve microstructures with optimal surface quality efficiently during CO₂ laser ablation of PMMA, a laser power setting of 3 W is recommended for irradiation processing. This study elucidates the mechanisms through which laser processing influences the material, providing theoretical guidance for the optimization of laser processing techniques for PMMA.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"130 12","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of palladium ions doping on structural, magnetic, and electromagnetic properties and hyperfine interactions of Co-Ni nanospinel ferrites","authors":"M. A. Almessiere,&nbsp;A. Baykal,&nbsp;Y. Slimani,&nbsp;H. Güngüneş,&nbsp;A. Demir Korkmaz,&nbsp;D. S. Klygach,&nbsp;S. V. Trukhanov,&nbsp;T. I. Zubar,&nbsp;A. V. Trukhanov","doi":"10.1007/s00339-024-08092-4","DOIUrl":"10.1007/s00339-024-08092-4","url":null,"abstract":"<div><p>Pd²⁺ ions substituted Co-Ni spinel ferrites nanoparticles (Co_0.5Ni_0.5Pd_xFe_2−xO₄ (Pd→CoNiFe₂O₄) NSFs) have been synthesized via a hydrothermal route assisted with polyethylene glycol (PEG). XRD, SEM, TEM, HR-TEM, VSM, and Mossbauer spectroscopy were used to provide a thorough analysis of the phase and structure, magnetic characteristics, and hyperfine interactions. Magnetic features of prepared NPs showed ferrimagnetic behavior. In comparison to non-doped NPs, the incorporation of a small amount of Pd ions within Co_0.5Ni_0.5Fe₂O₄ provoked initially a slight rise in magnetization and coercivity magnitudes. Furthermore, as the Pd²⁺ ions content continued to increase, magnetization and coercivity exhibited a diminishing trend. These observations are explained by changes in size and morphology, variations in the strength of superexchange interactions, and cation redistribution. Mössbauer spectra for all samples exhibited four distinct magnetic sextets. The doped ions were substituted with Fe³⁺ ions at B site. The cation distribution was ascertained through the utilization of Mossbauer spectroscopy. An investigation of electromagnetic (EM) properties was conducted within 2–18 GHz. EM characteristics of the samples can be explained by the main contribution in EM absorption from the electric energy losses.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"130 12","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tunning the omnidirectional bandgap of nanoporous silicon using a semi-sinusoidal refractive index profile","authors":"Mohamed Shaker Salem,&nbsp;Asmaa Mohamed Abdelaleem,&nbsp;Gamal Madboly Nasr,&nbsp;Mohamed Amin","doi":"10.1007/s00339-024-08110-5","DOIUrl":"10.1007/s00339-024-08110-5","url":null,"abstract":"<div><p>We report the theoretical comparison of the omnidirectional bandgap in a 1-D photonic crystal using sinusoidal and semi-sinusoidal refractive index profiles. It is found that the corresponding omnidirectional bandgap of the semi-sinusoidal widens and shifts to a higher wavelength range as a function of the asymmetric ratio of semi-sinusoidal profile. The asymmetric ratio plays an essential role in tunning the width of the omnidirectional bandgap due to the changed average refractive index and optical thickness. The semi-sinusoidal refractive index is experimentally achieved by changing the current waveform. Novel omnidirectional nanoporous silicon mirrors with an omnidirectional bandgap covering optical communication wavelength (1550 nm) were fabricated using a semi-sinusoidal current waveform. The experimental analogy was carried out by building up the multilayered dielectric structures of omnidirectional mirrors by anodic etching using a semi-sinusoidal current waveform. The experimental results were compared with the theoretical results investigated by the Transfer matrix method. It was shown that the distorted current profile impacts the quality of the omnidirectional bandgap although it does not affect the porous size range.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"130 12","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00339-024-08110-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714151","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}

{"title":"Investigating the influence of CaO/CaF2 ratios on the synthesis of calcium-alumino-silicate-fluoride-based glass ceramics utilizing recyclable materials","authors":"Zuraidah Roslan,&nbsp;Khamirul Matori Amin,&nbsp;Mohd Hafiz Mohd Zaid,&nbsp;Yazid Yaakob,&nbsp;Esra Kul,&nbsp;Zhi Wei Loh,&nbsp;Aishah Zarzali Shah,&nbsp;Afrina Zulaikha Ahmad Zahudi","doi":"10.1007/s00339-024-08053-x","DOIUrl":"10.1007/s00339-024-08053-x","url":null,"abstract":"<div><p>This research addresses the significant challenges of waste disposal and the need for sustainable production in the ceramics industry by introducing an approach to fabricating calcium-alumino-silicate-fluoride (CASF) based glass ceramics. Using recyclable materials such as waste soda-lime-silicate (SLS) glass and clam shells (CS) as primary precursors, a controlled melt-quenching process was employed to investigate how varying the CaO/CaF₂ ratios influences the physical and structural properties of CASF glass ceramics. The waste materials and CASF glass ceramics were analyzed using X-ray fluorescence (XRF), X-ray diffraction (XRD), Fourier transforms infrared (FTIR), Scanning electron microscopy (SEM), and Energy dispersive X-ray (EDX) spectroscopy. XRD indicated the crystalline structure in all CASF glass ceramics samples while FTIR spectroscopy detected several linkages, including PO₄³⁻, Si-OH, Si-O-Si, CO₂, and O-H indicating the development of CASF glass ceramics. SEM analysis showed a non-uniform distribution of particles and EDX analysis, shows the calcium-to-phosphate molar ratio (Ca/P) of CASF glass ceramics. The glass ceramics labeled as G6 possessed better properties, with a minor crystalline phase identified as fluorapatite (Ca₅(PO₄)₃F), which is compatible with the commercial bioglass. These results demonstrate a cost-effective waste-derived bioglass system used in biomedical fields.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"130 12","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Coupling effect of evaporation-plasma shielding and its influence on femtosecond laser ablation","authors":"Zhiqiang He,&nbsp;Donghan Yang,&nbsp;Mengya Zhang,&nbsp;Jibang Liao,&nbsp;Yi Liu,&nbsp;Ling Li","doi":"10.1007/s00339-024-08049-7","DOIUrl":"10.1007/s00339-024-08049-7","url":null,"abstract":"<div><p>The two-temperature model is employed to investigate the evaporation and plasma shielding coupling effect by femtosecond ablation during the ablation of gold films. The plasma shielding effect is characterized by coupling the plasma expansion dynamics with the electron source term. The evaporation effect is realized by the liquid–vapor interface tracking method. The simulation results show that the reflectivity and absorption coefficient decrease from 0.488 and 486 μm⁻¹ to 0.293 and 180 μm⁻¹, respectively, due to the electron heating by the femtosecond laser with 120 fs pulse width and 5000 J/m² energy density. The electron and phonon temperatures increase sharply because the gold film absorbs more energy. While the heating interval is 10 ps, the plasma absorbs 30% laser energy. Moreover, the plasma shielding effect is enhanced with the increasing laser energy density in the 2500–15000 J/m² range. The influence of plasma on laser-irradiated gold film can be weakened by controlling the pulse interval time. It is helpful to improve the accuracy and efficiency of femtosecond laser processing.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"130 12","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Different levels of interpreting chemical data by prompt gamma activation analysis on polished stone tools in the Carpathian Basin (Hungary)","authors":"Veronika Szilágyi,&nbsp;Zsolt Kasztovszky,&nbsp;Erika Kereskényi,&nbsp;Bálint Péterdi,&nbsp;Katalin T. Biró,&nbsp;György Szakmány","doi":"10.1007/s00339-024-08070-w","DOIUrl":"10.1007/s00339-024-08070-w","url":null,"abstract":"<div><p>Average chemical composition data can be effectively exploited in provenance, i.e. raw material’s origin, research of archaeological polished stone artefacts where direct correlation with potential raw materials is possible. This study summarizes the success of Prompt Gamma Activation Analysis (PGAA) method on two different levels of chemical data interpretation for variable rock types found in Hungary, in the Carpathian Basin and their wider vicinity, i.e. material characterization and provenance identification level. Characterization of different lithologies is possible by variable combinations of some major element oxides (Si, Mg, Ca, Na, K, Al, Fe and Ti). Applying statistical methods, boxplots and Principal Component Analysis, we proved that serpentinites, nephrites and Mg-Si-rich subgroup of ‘white stones’ can be clearly distinguished, while the ‘green stone’ category cannot be further differentiated, partly overlaps with hornfels and significantly overlaps with other rock types (basalts, metadolerites-metagabbros, andesites and metavolcanites). The provenance identification is successful in the case of contact metabasites and HP metaophiolites, while less exact for nephrites, basalts and hornfels.</p><p>The non-destructive PGAA proved to be very effective in the identification of certain lithologies, while for other polished stone tool raw materials it has medium certainty and requires complementing methods.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"130 12","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00339-024-08070-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714420","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}

{"title":"Semi-analytical model and vibrational energy recovery efficiency of piezoelectric beams with quasi-periodic additional acoustic black holes","authors":"Mingzheng Yang,&nbsp;Changzheng Chen,&nbsp;Linru Wei,&nbsp;Xiaoping Chen,&nbsp;Xianming Sun,&nbsp;Hao Fu","doi":"10.1007/s00339-024-08083-5","DOIUrl":"10.1007/s00339-024-08083-5","url":null,"abstract":"<div><p>Based on the energy aggregation effect of acoustic black holes (ABHs) structures, they can be used as bending wave traps for energy harvesting applications and help to greatly improve the efficiency of energy recovery. In this paper, a quasi-periodic additional acoustic black holes (Q-IABHs) piezoelectric beam structure for efficient energy recovery of low-frequency broadband energy is proposed in response to the current embedded piezoelectric ABHs that lead to weakening of the structural strength. Firstly, the electromechanical coupling model of Q-IABHs is established according to the characteristics of the thickness power rate distribution in ABHs, based on the theory of Gaussian expansion method and coupled spring technology. Compared with the commonly adopted finite element method (FEM), this method has obvious advantages in terms of greatly improving the computational efficiency and perfectly adapting to arbitrary boundary conditions with thickness gradient changes. The accuracy of the theoretical modeling method is verified by numerical simulation with FEM. Then, the mechanism of the key structural parameters of the Q-IABHs piezoelectric beam on the energy recovery power is investigated, and the enhancement mechanism of the piezoelectric sheet size and position on the broadband recovery power is revealed. Then, the enhancement mechanism of the energy aggregation effect of the Q-IABHs piezoelectric beam structure on the energy recovery power is revealed through comparative analysis. Finally, 6063 aluminum alloy material is used to complete the preparation of Q-IABHs piezoelectric beam structure by machining black hole features through CNC milling, and the experimental platform for piezoelectric energy recovery is built. The results show that the recovery efficiency of Q-IABHs piezoelectric beams in the range of 0–471.27 Hz is significantly higher than that of additional uniform piezoelectric beams (Q-UNIs), which verifies the effectiveness of the Q-IABHs structure to improve the efficiency of broadband energy recovery, and lays a foundation for the advancement of the ABHs structure from theoretical research to the application in the field of practical engineering.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"130 12","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00339-024-08083-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714418","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}

{"title":"Twin boundary formation in Pb thin film under conditions of the quantum confinement effect","authors":"S. I. Bozhko,&nbsp;A. S. Ksenz,&nbsp;D. A. Fokin,&nbsp;D. Roditchev,&nbsp;A. M. Ionov","doi":"10.1007/s00339-024-08046-w","DOIUrl":"10.1007/s00339-024-08046-w","url":null,"abstract":"<div><p>Pb growth on a clean vicinal Si(557) surface at room temperature was studied using Scanning Tunneling Microscopy. The Pb film growth occurred in accordance with the Stranski-Krastanov scenario. The anisotropic wedge-shaped Pb-islands were observed on the top of a wetting layer. DFT simulations revealed the electron energy oscillations as a function of the island thickness agrees with the electronic growth model. The out-of-plane (111) Pb island consisted of stacked 2 nm thick layers. Based on the DFT simulations and proposed one-dimensional model, it was shown that the layers were separated by the twin boundaries. The energy of formation of twin boundary between the 2 nm layers exceeded the energy gain due to the quantum confinement effect. However, the electron standing wave at the Fermi level in the 2 nm layer made the <b><i>hcp</i></b> position of the Pb adatom on the Pb(111) surface favorable. The seed of the twin boundary formation was realized via occupation of the <b><i>hcp</i></b> position by the Pb adatom and dimers of adatoms on the Pb(111) surface. The adatom separation in dimers was controlled by an indirect interaction through conductive electrons at the Fermi level of the 2 nm layer of Pb. The completion of the Pb(111) atomic layer growth was achieved by an unusual collective superdiffusive mechanism in the wetting layer and on the top of the Pb nanoisland surface. A new mechanism of twinning boundary formation based on quantum effects in a system of conducive electrons was proposed.</p><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":"130 12","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dual-function film of ZnO doped into CrNi black coatings as solar absorbent and corrosion resistant","authors":"Hanaa Soliman,&nbsp;Abdel Salam H. Makhlouf,&nbsp;Diaa Rayan","doi":"10.1007/s00339-024-07961-2","DOIUrl":"10.1007/s00339-024-07961-2","url":null,"abstract":"<div><p>Renewable energy is one of the major global challenges towards a clean environment. In solar collectors, high absorption with low thermal emittance represents the main performance parameter during the characterization of the absorber films. This article provides an in-depth study of the co-deposition of Cr and Ni-doped by ZnO coatings and their influence on surface protection correlating it with the absorption of the produced surfaces. Results showed that Cr + Ni + ZnO composite film on Cu substrate outperformed traditional Cr film, in terms of surface smoothness, adhesion, corrosion resistance, bending resistance in addition to high solar absorption. Precisely, ZnO inserted into the Cr₇Ni₃ phase is the key for dual-performance high absorbent and resistant film of CrNi.</p><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":"130 12","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142694809","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}