European Physical Journal-applied Physics最新文献

Novel KOH treated Li-CuO as anode for the Application of Lithium-Ion Batteries 新型KOH处理Li-CuO阳极在锂离子电池中的应用

4区物理与天体物理

European Physical Journal-applied Physics Pub Date : 2023-11-06 DOI: 10.1051/epjap/2023230062

V Madhu Mohan, T Suvarna, P. Balaji Bhargav, P. Mohan Babu

引用次数: 0

Interpretation of temperature measurements by the Boltzmann plot method on spatially integrated plasma oxygen spectral lines 空间积分等离子体氧谱线上波尔兹曼图法测温的解释

4区物理与天体物理

European Physical Journal-applied Physics Pub Date : 2023-10-23 DOI: 10.1051/epjap/2023230072

Julien Thouin, Malyk Benmouffok, Pierre Freton, Jean-Jacques Gonzalez

{"title":"Interpretation of temperature measurements by the Boltzmann plot method on spatially integrated plasma oxygen spectral lines","authors":"Julien Thouin, Malyk Benmouffok, Pierre Freton, Jean-Jacques Gonzalez","doi":"10.1051/epjap/2023230072","DOIUrl":"https://doi.org/10.1051/epjap/2023230072","url":null,"abstract":"In thermal plasma spectroscopy, the Boltzmann plot method is particularly popular for measuring plasma temperature independently of pressure. In order to better understand the results of the Botzmann plot measurements performed with atomic oxygen lines on our thermal plasma, which has a non-negligible thickness, a Python code was developed based on the assumption of local thermodynamic equilibrium (LTE) and the calculated plasma composition and properties. This code allows us to simulate a measurement of the oxygen line intensity resulting from an integration over the plasma thickness in a chosen direction for a given temperature profile. From these a simulated Boltzmann plot gave us a simulated temperature. It resulted that this measurement is governed by the maximum of the temperature profile until the maximum temperature exceeds that of the maximum emissivity of the atomic oxygen lines. Above that temperature a limitation was observed, it is possible to measure higher temperatures but the interpretation of that measurement is difficult. Plasma pressure has a limited effect on this limitation. When no limitation is observed, the temperature measurement from the Boltzmann plot method that we simulated is always at least 90% of the maximum of the temperature profile.","PeriodicalId":12228,"journal":{"name":"European Physical Journal-applied Physics","volume":"39 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135365761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Calculation of structural, electronic, magnetic and optical properties of C3N monolayer substituted with magnesium 镁取代C3N单层结构、电子、磁性和光学性质的计算

4区物理与天体物理

European Physical Journal-applied Physics Pub Date : 2023-10-17 DOI: 10.1051/epjap/2023230147

Erfan Cholaki, Borhan Arghavani Nia, Sahar Rezaee, Sajad Parsamehr

{"title":"Calculation of structural, electronic, magnetic and optical properties of C3N monolayer substituted with magnesium","authors":"Erfan Cholaki, Borhan Arghavani Nia, Sahar Rezaee, Sajad Parsamehr","doi":"10.1051/epjap/2023230147","DOIUrl":"https://doi.org/10.1051/epjap/2023230147","url":null,"abstract":"In this article, Mg impurity effect on structural, electronic, magnetic and optical properties ofC3N monolayer have been investigated using first principles calculations in the density functional theory framework utilizing Wien2K computational code. The results provide that the impurity added to the C3N monolayer changes the nature of the C3N monolayer to create magnetic half-metallic properties with 0.99 magnetization.By investigating the mechanical stability of these two structures, it is observed that the pure C3N structure is more stable than the Mg-doped structure.Moreover, optical properties such as dielectric function, reflection coefficient, energy loss function, absorption coefficient and optical conductivity were calculated. The pure C3N monolayer and the C3N with Mg impurity are both optically anisotropic, leading to birefringence for the pure and doped states. The results also provide a basic understanding of the design of composite structures applied in nanodevices based on two-dimensional advanced materials which is used in the spintronics industry","PeriodicalId":12228,"journal":{"name":"European Physical Journal-applied Physics","volume":"78 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135944027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Photoluminescence from metal clusters formed in the pores of zeolite by pulsed laser ablation in a liquid phase 在液相中脉冲激光烧蚀沸石孔隙中形成的金属团簇的光致发光

4区物理与天体物理

European Physical Journal-applied Physics Pub Date : 2023-10-12 DOI: 10.1051/epjap/2023230064

Yoshihiro Takeda, Namiki Toyama, Kazuhiro Egashira

引用次数: 0

Experimental study of the high-order exceptional points in a four-state non-Hermitian microwave meta-atoms system 四态非厄米微波元原子系统高阶异常点的实验研究

4区物理与天体物理

European Physical Journal-applied Physics Pub Date : 2023-01-01 DOI: 10.1051/epjap/2023230155

Yaqiong Ding ，Xiaoyu Liu, Yuanwei Tong, Lijuan Dong

引用次数: 0

Experimental investigations of a remote atmospheric pressure plasma by electrical diagnostics and related effects on polymer composite surfaces 远距离大气压等离子体的电诊断实验研究及其对高分子复合材料表面的影响

IF 1 4区物理与天体物理

European Physical Journal-applied Physics Pub Date : 2021-09-01 DOI: 10.1051/EPJAP/2021210110

L. Brès, N. Gherardi, N. Naudé, B. Rives

{"title":"Experimental investigations of a remote atmospheric pressure plasma by electrical diagnostics and related effects on polymer composite surfaces","authors":"L. Brès, N. Gherardi, N. Naudé, B. Rives","doi":"10.1051/EPJAP/2021210110","DOIUrl":"https://doi.org/10.1051/EPJAP/2021210110","url":null,"abstract":"Surface activation of Carbon Fiber Reinforced Polymers (CFRP) using (Poly-EtherEtherKetone) (PEEK) matrices is required to achieve strong and long-term adherent painting on the composite. Among the different techniques, an industrial atmospheric pressure remote plasma has been used in this work to treat PEEK CFRP surfaces. The characterization of this device by means of electrical diagnostics related to the effect of such post-discharge on the surface modifications is discussed. Firstly, electrical characteristics of the discharge show fairly high currents associated to high voltages which suggest a nonestablished and cold arc. Power consumed by the electrical supply associated to post-discharge length and surface temperatures allowed a better understanding of the industrial device. Secondly, the effects of plasma on surface chemistry and topography are analyzed by water contact angle measurements, X-ray Photoelectron Spectroscopy (XPS) and Atomic Force Microscopy (AFM). Investigations showed that treated surfaces exhibited better hydrophilicity mainly due to an incorporation of oxygen containing groups (up to 8.4% more) under air plasma whereas an increase of the nanoroughness and specific surface is preponderant under nitrogen plasma. Different hydrophilic capabilities of the surface obtained in air and nitrogen gas plasmas highlight a potential optimization of activation performances according to industrial specification.","PeriodicalId":12228,"journal":{"name":"European Physical Journal-applied Physics","volume":"27 1","pages":"30801"},"PeriodicalIF":1.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87651142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Preparation, structural investigation and optical properties determination of composite films based on PAZO polymer doped with GeTe4-Cu chalcogenide particles GeTe4-Cu硫系粒子掺杂PAZO聚合物复合膜的制备、结构研究及光学性能测定

IF 1 4区物理与天体物理

European Physical Journal-applied Physics Pub Date : 2021-09-01 DOI: 10.1051/EPJAP/2021210104

A. Stoilova, D. Dimov, Y. Trifonova, V. Lilova, B. Blagoeva, D. Nazarova, L. Nedelchev

{"title":"Preparation, structural investigation and optical properties determination of composite films based on PAZO polymer doped with GeTe4-Cu chalcogenide particles","authors":"A. Stoilova, D. Dimov, Y. Trifonova, V. Lilova, B. Blagoeva, D. Nazarova, L. Nedelchev","doi":"10.1051/EPJAP/2021210104","DOIUrl":"https://doi.org/10.1051/EPJAP/2021210104","url":null,"abstract":"The work presents preparation, structural investigation and optical properties determination of composite films based on the azopolymer (poly[1-[4-(3-carboxy-4-hydroxyphenylazo)benzenesulfonamido]-1,2-ethanediyl, sodium salt]), shortly PAZO, doped with 1 wt.% particles of the previously synthesized by us new tellurium containing chalcogenide system (GeTe4 )100-x Cux , where x = 5, 10, 15 and 20 mol.%. X-Ray diffraction (XRD) was applied to analyze the structure of the chalcogenide bulk material. Transmission electron microscopy (TEM) has been used to study the particles and the composite films morphology. The transmittance coefficient (T ), the reflectance coefficient (R ), the refractive index (n ), the extinction coefficient (k ), the optical absorption coefficient (α ) and the optical band gap ( ) of the composite films were determined. Birefringence was induced by a He-Cd laser with a wavelength 442 nm and measured with probe Diode Pumped Solid State (DPSS) laser at 635 nm. The influence of the dopants concentration on the optical performance of the composite films has been discussed.","PeriodicalId":12228,"journal":{"name":"European Physical Journal-applied Physics","volume":"30 1","pages":"30301"},"PeriodicalIF":1.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89448867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Mo/W/Al doped tin oxide thin films: Exploring optical and mechanical properties for transparent protective coating applications Mo/W/Al掺杂氧化锡薄膜:探索透明保护涂层的光学和机械性能

IF 1 4区物理与天体物理

European Physical Journal-applied Physics Pub Date : 2021-08-24 DOI: 10.1051/EPJAP/2021210084

P. V. Rajeswari, Y. Raghava, S. Tripathy, N. Rao

引用次数: 0

Vibration and acoustic insulation properties of generalized phononic crystals 广义声子晶体的振动和隔声特性

IF 1 4区物理与天体物理

European Physical Journal-applied Physics Pub Date : 2021-06-01 DOI: 10.1051/EPJAP/2021210036

W. Xingguo, Shu Haisheng, Zhang Lei

{"title":"Vibration and acoustic insulation properties of generalized phononic crystals","authors":"W. Xingguo, Shu Haisheng, Zhang Lei","doi":"10.1051/EPJAP/2021210036","DOIUrl":"https://doi.org/10.1051/EPJAP/2021210036","url":null,"abstract":"Based on the previous studies, the concept of generalized phononic crystals (GPCs) is further introduced into the cylindrical shell structures, and a type of cylindrical shells of generalized phononic crystals (CS-GPCs) is constructed. Subsequently, the structure field and acoustic-structural coupled field of that composite cylindrical shells are examined respectively in this paper. Considering the Bloch theorem is not capable of explaining the generalized periodic situation existing in this structure field, a new analysis method involving transferring matrix eigenvalue based on the mechanical state vector is proposed to calculate the energy band structure. Through observing the energy band structure, an obvious wave band gap is obtained when the elastic wave propagates in the CS-GPCs for modes with different order, whose forming mechanism includes two aspects, i.e., the wave front expansion effect and the Bragg scattering effect. In addition, we further explore the related influences of the longitudinal wave mode and shear wave mode in structure on these band gaps, and some conclusions are illustrated. For acoustic-structural coupled field, the expressions of the acoustic transmission coefficients for different modes are built, and the frequency responses are numerically calculated to verify the band gap characteristics of the CS-GPCs. Furthermore, the acoustic pressure distribution of the internal and external acoustic fields is also analyzed in detail, and the influence laws of the parameters (offset distance and frequency) of the line source on acoustical pressure distribution and its directivity are explored.","PeriodicalId":12228,"journal":{"name":"European Physical Journal-applied Physics","volume":"34 1","pages":"60902"},"PeriodicalIF":1.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83209412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Role of some modifiers on the thermo-mechanical properties of Se90In10 chalcogenide glass (ChGs) 几种改性剂对Se90In10硫系玻璃(ChGs)热机械性能的影响

IF 1 4区物理与天体物理

European Physical Journal-applied Physics Pub Date : 2021-06-01 DOI: 10.1051/EPJAP/2021210044

A. Dahshan, H. Kumar, N. Mehta

引用次数: 1