Applied Physics A最新文献_第4页

Structural and spectroscopic properties of Ca2La3(SiO4)3F: Dy3+ phosphor Ca2La3(SiO4)3F: Dy3+荧光粉的结构和光谱性质

IF 2.5 4区材料科学

Applied Physics A Pub Date : 2025-05-08 DOI: 10.1007/s00339-025-08574-z

Akshay Pimpalkar, Amolkumar N. Jadhav, Ashok Mistry, Shruti Dhale, Prachita A. Patil, Anil Muke, Rujuta Barve Joshi, Shilpa Kulkarni, Nilesh Ugemuge

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Magnetic impurity-related optical absorption coefficients in a semimagnetic double quantum well under magnetic field and temperature effects 磁场和温度作用下半磁双量子阱中与磁杂质相关的光吸收系数

IF 2.5 4区材料科学

Applied Physics A Pub Date : 2025-05-08 DOI: 10.1007/s00339-025-08551-6

H. Azmi, K. El-Bakkari, A. Fakkahi, A. Mazouz, M. Jaouane, A. Ed-Dahmouny, R. Arraoui, M. Jaafar, A. Sali, N. Amri, H. El Ghazi

{"title":"Magnetic impurity-related optical absorption coefficients in a semimagnetic double quantum well under magnetic field and temperature effects","authors":"H. Azmi, K. El-Bakkari, A. Fakkahi, A. Mazouz, M. Jaouane, A. Ed-Dahmouny, R. Arraoui, M. Jaafar, A. Sali, N. Amri, H. El Ghazi","doi":"10.1007/s00339-025-08551-6","DOIUrl":"10.1007/s00339-025-08551-6","url":null,"abstract":"<div>This research explores how temperature ((mathrm{T})) and magnetic field ((upgamma)) influence the optical absorption coefficients (OACs) and oscillator strength (({mathrm{OS}}_{mathrm{fi}})) of a magnetic impurity (({mathrm{Mn}}^{2+})) embedded within a (mathrm{CdTe}/{mathrm{Cd}}_{1-mathrm{x}}{mathrm{Mn}}_{mathrm{x}}mathrm{Te}) dilute magnetic double quantum well (DQW). The calculation is conducted using the variational approach within the framework of the effective mass approximation (EMA). Additionally, the analysis incorporates the spin polaronic shift (SP Shift), evaluating its impact on the magnetic impurity states ((1mathrm{s}) and ({2mathrm{p}}_{mathrm{x}})). The outcomes demonstrate that the OAC attaints its peak intensity when ({mathrm{Mn}}^{2+}) is situated at the center of the barrier compared to other positions. Moreover, variations in (upgamma) and (mathrm{T}) lead to a reduction in the OAC magnitude and cause a red shift in the peak position. Besides that, the aforementioned effects have on opposite impact on the spin orientations.</div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 6","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919211","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}

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Impact of Cu1-xNixO on the structural, optical and photoluminescence performance of nano Zn0.95Mg0.05O/Cu1-xNixO Cu1-xNixO对纳米Zn0.95Mg0.05O/Cu1-xNixO结构、光学和光致发光性能的影响

IF 2.5 4区材料科学

Applied Physics A Pub Date : 2025-05-08 DOI: 10.1007/s00339-025-08571-2

Zein K. Heiba, Noura M. Farag, Asmaa M. Abozied, Saif A. Mouhammad, Ali Badawi, Mohamed Bakr Mohamed

{"title":"Impact of Cu1-xNixO on the structural, optical and photoluminescence performance of nano Zn0.95Mg0.05O/Cu1-xNixO","authors":"Zein K. Heiba, Noura M. Farag, Asmaa M. Abozied, Saif A. Mouhammad, Ali Badawi, Mohamed Bakr Mohamed","doi":"10.1007/s00339-025-08571-2","DOIUrl":"10.1007/s00339-025-08571-2","url":null,"abstract":"<div>Zn0.95Mg0.05O and Zn0.95Mg0.05O/Cu1-xNixO (where x = 0, 0.05, 0.1, 0.15) samples were synthesized via the solid-state reaction technique. High resolution synchrotron x-ray diffraction patterns enabled accurate determination of the formed crystallographic phases and their percentages. Field emission scanning electron microscope (FESEM) images displayed particles in the nano range having different shapes representing different phases but with homogeneous morphologies. Energy-dispersive x-ray spectroscopy (EDS) analysis revealed presence of Mg and Ni elements with percentages comparable with intended values. Analysis of Fourier transform infrared (FTIR) and Raman spectra advocated the exchange of cations between the formed phases. The optical absorbance of visible spectrum is enhanced upon composing Zn0.95Mg0.05O with CuO. With the rise in Ni content in Zn0.95Mg0.05O/Cu1-xNixO nanocomposite, the absorbance ability within the visible spectrum is slightly augmented. The determined optical bandgap energy for the composed samples x = 0, 0.05, 0.1, and 0.15 are (1.4, 3.21), (1.41, 3.22), (1.39, 3.22), and (1.41, 3.21) eV, respectively. The refractive index attained a maximum value for the nanocomposites with 0% and 15% Ni content. The nonlinear optical parameters were enhanced as Zn0.95Mg0.05O was alloyed with Cu1-xNixO. The nonlinear optical characteristics exhibited minor alterations as the quantity of Ni varied in the nanocomposite. The optical dielectric constant and optical conductivity of Zn0.95Mg0.05O is improved upon composing with Cu1-xNixO, experiencing irregular change by the variation of Ni. The effect of alloying on the photoluminescence spectrum and CIE chromaticity diagrams was explored.</div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 6","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143925600","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}

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BMZC modified ZIF-8/Si nanoporous pillar array for highly sensitive humidity detection BMZC改进的ZIF-8/Si纳米孔柱阵列用于高灵敏度湿度检测

IF 2.5 4区材料科学

Applied Physics A Pub Date : 2025-05-08 DOI: 10.1007/s00339-025-08548-1

Hongxin Cai, Hang Yu, Lingling Yan, Lingli Wang, Qiang Hu, Xiude Tu

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ZnO nanorods as cost-effective electrocatalysts for ethanol electro-oxidation in an alkaline medium 氧化锌纳米棒在碱性介质中作为经济高效的乙醇电氧化催化剂

IF 2.5 4区材料科学

Applied Physics A Pub Date : 2025-05-08 DOI: 10.1007/s00339-025-08544-5

Oussama Bacha, Ouidad Baka, Khaoula Ghezali, Hakim Belkhalfa, Nadir Dizge, Zelal Isik, Med Ridha Khelladi, Amor Azizi, M’hamed Bouricha, Abdellah Henni

{"title":"ZnO nanorods as cost-effective electrocatalysts for ethanol electro-oxidation in an alkaline medium","authors":"Oussama Bacha, Ouidad Baka, Khaoula Ghezali, Hakim Belkhalfa, Nadir Dizge, Zelal Isik, Med Ridha Khelladi, Amor Azizi, M’hamed Bouricha, Abdellah Henni","doi":"10.1007/s00339-025-08544-5","DOIUrl":"10.1007/s00339-025-08544-5","url":null,"abstract":"<div>Ethanol oxidation reactions (EOR) using cost-effective electrocatalysts are crucial in fuel cell development. This study aims to investigate using ZnO nanorods/ITO as electrocatalysts in an alkaline medium. ZnO nanorods were electrodeposited on an ITO glass substrate from an aqueous solution containing different concentrations of ZnCl2 at -1 V vs. SCE and 70 °C. X-ray diffraction shows that the thin films exhibit a good crystalline quality with a Wurtzite hexagonal structure and have a (002) preferential orientation along the c-axis. Furthermore, the SEM images show a formation of hexagonal nanorods with uniform distribution on the ITO surface. Moreover, the effect of zinc chloride concentration on the diameter was measured and varied from 150 to 322 nm. In addition, electrochemical impedance spectroscopy (EIS) was employed to study the charge transfer of the ZnO nanorods/electrolyte interface. The Mott-Schottky analysis has shown that the present materials are n-type semiconductors with a donor carrier density varied from 10.5 × 1020 to 2.33 × 1020 cm− 3. The optical band gap value decreased from 3.45 eV to 3.00 eV as the zinc concentration increased. The EOR on ZN electrodes was carried out in 0.5 M NaOH solution at room temperature using cyclic voltammetry and chronoamperometry techniques. Furthermore, the current study proved that electrodeposited ZnO nanorods could be a promising electrocatalyst electrode for ethanol oxidation and its applications.<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 6","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919209","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

Defect state enhanced third order thermo-optic nonlinearity in Bi3+ doped MnWO4 nanostructures 缺陷态增强了Bi3+掺杂MnWO4纳米结构的三阶热光学非线性

IF 2.5 4区材料科学

Applied Physics A Pub Date : 2025-05-08 DOI: 10.1007/s00339-025-08549-0

P. Divya, B. Vijayakumar, N. Angeline Little Flower, R. Annie Sujatha, G. Vinitha, K. Mani Rahulan

{"title":"Defect state enhanced third order thermo-optic nonlinearity in Bi3+ doped MnWO4 nanostructures","authors":"P. Divya, B. Vijayakumar, N. Angeline Little Flower, R. Annie Sujatha, G. Vinitha, K. Mani Rahulan","doi":"10.1007/s00339-025-08549-0","DOIUrl":"10.1007/s00339-025-08549-0","url":null,"abstract":"<div>We present the third order nonlinear optical characteristics of Bi3+ doped MnWO4 nanostructures synthesized by chemical precipitation technique. The structural information revealed by X-ray diffraction (XRD) and Raman analysis confirmed the incorporation of Bi3+ ions into the MnWO4 lattice with no secondary phases. UV–Vis absorption spectra evidences the absorbance maximum in the UV region and the particles are feebly transparent in the visible region. The inclusion of Bi3+ in MnWO4 was further confirmed by Photoluminescence quenching. The calculated particle sizes from Transmission electron microscope (TEM) were found to be 30–50 nm. The chemical composition and oxidation states of Bi3+ doped MnWO4 nanostructures is confirmed by X-ray photo electron spectroscopy (XPS). A continuous wave Nd: YAG laser operated at 532 nm was used to analyze the third order nonlinear optical behavior of Bi3+ doped MnWO4 nanostructures by Z-scan technique. Analysis of both open and closed aperture experimental data reveals that reverse saturable absorption and self-defocussing effect is the cause of observed nonlinearities. The optical nonlinearity of the nanostructures is found to be increased upon Bi3+ concentration. Based on the observed nonlinearities, the synthesized nanostructures are capable of potential application in photonic devices.</div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 6","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919177","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

Tailoring porous structure composed of nano indium oxide and nano zinc ferrite to be act as an efficient humidity sensor 由纳米氧化铟和纳米铁氧体锌组成的定制多孔结构作为高效的湿度传感器

IF 2.5 4区材料科学

Applied Physics A Pub Date : 2025-05-08 DOI: 10.1007/s00339-025-08519-6

Amira Ali, Ahmed I. Abdel-Salam, Samar A. Salim, Mohamed Morsy

{"title":"Tailoring porous structure composed of nano indium oxide and nano zinc ferrite to be act as an efficient humidity sensor","authors":"Amira Ali, Ahmed I. Abdel-Salam, Samar A. Salim, Mohamed Morsy","doi":"10.1007/s00339-025-08519-6","DOIUrl":"10.1007/s00339-025-08519-6","url":null,"abstract":"<div>In this work, we reported the synthesis of a high-performance humidity sensor based on an indium oxide/zinc ferrite nanocomposite. The composite was prepared by hydrothermal technique, which resulted in a homogenous nanostructure. The structural and morphological characterizations were performed using XRD, FTIR, UV-Vis, SEM, EDX, TEM and BET techniques, confirming the formation of In₂O₃/ZnFe₂O₄ composite with well-defined particle sizes in the nanometer scale. The humidity sensing performance was evaluated in a wide range of relative humidity, from 11% up to 97%. The optimal testing frequency was determined to be 100 Hz. The results demonstrate that the prepared nanocomposite exhibits an excellent dynamic response characteristic. Also, the sensor demonstrated good repeatability in its response, showing stable performance across cycles. Furthermore, due to the porosity and high surface area, water vapor absorption and desorption occurred rapidly in the nanocomposite. These results indicate that In₂O₃/ZnFe₂O₄ nanocomposite is a promising candidate for humidity-sensing applications.</div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 6","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00339-025-08519-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919208","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}

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Spatial ordering of excitons in the germanium/silicon nanosystems with germanium quantum dots 含锗量子点的锗/硅纳米系统中激子的空间有序

IF 2.5 4区材料科学

Applied Physics A Pub Date : 2025-05-07 DOI: 10.1007/s00339-025-08523-w

Serhii I. Pokutnii

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Critical behavior and magnet effect simulation in La1-xTexMnO3 manganites La1-xTexMnO3锰矿石的临界行为及磁效应模拟

IF 2.5 4区材料科学

Applied Physics A Pub Date : 2025-05-06 DOI: 10.1007/s00339-025-08546-3

Mohamed Hsini, Houda Kaouach, Amel Haouas

{"title":"Critical behavior and magnet effect simulation in La1-xTexMnO3 manganites","authors":"Mohamed Hsini, Houda Kaouach, Amel Haouas","doi":"10.1007/s00339-025-08546-3","DOIUrl":"10.1007/s00339-025-08546-3","url":null,"abstract":"<div>This study presents a detailed analysis of the critical behavior in Te-doped La1-xTexMnO3 (x = 0.05–0.2), highlighting the influence of doping on magnetic interactions and critical phenomena. A significant novelty of this work lies in the use of an iterative refinement of critical exponents via Modified Arrott Plots (MAPs) and the Kouvel–Fisher method, revealing a deviation from the mean-field-like universality class. The critical exponents values evolve with increasing Te concentration, underscoring the tunability of magnetic interactions through chemical doping. Additionally, numerical simulations were employed to reproduce magnetization isotherms, and observed discrepancies at low magnetic fields were attributed to thermodynamic fluctuation effects not captured by classical models. The magnetic entropy change, with a peak value of 3.8 J.kg-1·K-1 at 5 T for x = 0.1, was derived both via the Landau theory and Maxwell relation, showing excellent agreement. This work contributes a comprehensive framework for analyzing critical phenomena in manganites and demonstrates a pathway to engineer magnetic transitions via controlled doping.</div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 6","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908781","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}

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Morphology of MIL-101(Cr) and improvement of humidity sensing performance by introducing FeCl3 MIL-101（Cr）的形态及引入FeCl3对湿度传感性能的改善

IF 2.5 4区材料科学

Applied Physics A Pub Date : 2025-05-06 DOI: 10.1007/s00339-025-08532-9

Hongxin Cai, Hang Yu, Yuanyuan Liu, Lingling Yan, Liang Chen, Qiang Hu, Lingli Wang, Bin Li

{"title":"Morphology of MIL-101(Cr) and improvement of humidity sensing performance by introducing FeCl3","authors":"Hongxin Cai, Hang Yu, Yuanyuan Liu, Lingling Yan, Liang Chen, Qiang Hu, Lingli Wang, Bin Li","doi":"10.1007/s00339-025-08532-9","DOIUrl":"10.1007/s00339-025-08532-9","url":null,"abstract":"<div>A series of FeCl3 doped MIL-101(Cr)/silicon nanoporous pillar array (FeCl3/MIL-101(Cr)/Si-NPA) humidity sensors were prepared by growing FeCl3 doped MIL-101(Cr) on Si-NPA via a facile spin-coating method. Systematically evaluation of capacitive sensing performance demonstrated that FeCl3 incorporation significantly enhanced humidity sensitivity. This improvement can be attributed to the increased hydrophilicity of the MIL-101(Cr)/Si-NPA composite membranes induced by FeCl3, as confirmed by the water contact angle test results. Notably, the 8 wt.% FeCl3/MIL-101(Cr)/Si-NPA humidity sensor exhibited the best comprehensive sensing properties, with excellent linearity (R2 = 0.991) in the 11–75% relative humidity (RH) range. The capacitance of the humidity sensor increased by nearly three orders of magnitude from 11% RH to 75% RH at 300 Hz. Additionally, the humidity sensor displayed fast response (46 s) and recovery (6 s) times, as well as excellent reproducibility. The sensing mechanism was explored through the analysis of complex impedance curves. These finding indicate that the 8 wt.% FeCl3/MIL-101(Cr)/Si-NPA sensor holds considerable promise for humidity sensing applications.</div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 6","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908782","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