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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
{"title":"Mo/W/Al doped tin oxide thin films: Exploring optical and mechanical properties for transparent protective coating applications","authors":"P. V. Rajeswari, Y. Raghava, S. Tripathy, N. Rao","doi":"10.1051/EPJAP/2021210084","DOIUrl":"https://doi.org/10.1051/EPJAP/2021210084","url":null,"abstract":"","PeriodicalId":12228,"journal":{"name":"European Physical Journal-applied Physics","volume":"333 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79731266","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
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
{"title":"Role of some modifiers on the thermo-mechanical properties of Se90In10 chalcogenide glass (ChGs)","authors":"A. Dahshan, H. Kumar, N. Mehta","doi":"10.1051/EPJAP/2021210044","DOIUrl":"https://doi.org/10.1051/EPJAP/2021210044","url":null,"abstract":"The studies on the micro-hardness of ChGs provide useful information regarding their straightforward involvement in the fabrication of sensors, fibers, and other optical elements for direct use in infrared optics. This work deals with the mechanical response of the glassy Se90In10 alloy under the influence of additives (Sn, Ag, Sb, and Ge). For this, we have determined the micro-hardness of all glassy alloys. Using the values of Vickers hardness (Hv), glass transition temperature (Tg), and present glasses, we have calculated the other significant thermo-mechanical parameters. The effect of Sn, Ag, Sb, and Ge additives on the micro-hardness of glassy Se90In10 alloy is also discussed.","PeriodicalId":12228,"journal":{"name":"European Physical Journal-applied Physics","volume":"1 1","pages":"61101"},"PeriodicalIF":1.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83541742","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
Sustained coherent epitaxy and role of oxygen vacancies in La0.7Sr0.3MnO3−δ thin films grown on SrTiO3 by sputtering 溅射生长在SrTiO3上的La0.7Sr0.3MnO3−δ薄膜的持续相干外延及氧空位的作用
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/2021200365
M. Lmouchter, M. Suzuki
{"title":"Sustained coherent epitaxy and role of oxygen vacancies in La0.7Sr0.3MnO3−δ thin films grown on SrTiO3 by sputtering","authors":"M. Lmouchter, M. Suzuki","doi":"10.1051/EPJAP/2021200365","DOIUrl":"https://doi.org/10.1051/EPJAP/2021200365","url":null,"abstract":"Ferromagnetic La0.7 Sr0.3 MnO3−δ (LSMO) epitaxial thin films of single-crystal quality with very smooth surfaces are grown on SrTiO3 (100) substrates by on-axis rf magnetron sputtering. We find that the resistivity and the spontaneous magnetization for these 180 nm thick films are nearly equal to those of single crystals after thermal annealing. On the other hand, the Curie temperature T C is no higher than 270 K, a value far below the bulk one, which is quite unusual. As a clue to this riddle, we note a strong correlation between the lattice constant for these films and the amount of oxygen vacancies in the case of LSMO, an oxygen-nonstoichiometric oxide. From this, we conclude that the sustained coherent epitaxy takes place to match the lattice mismatch of 0.8% by incorporating a limited amount of oxygen vacancies, which relaxes the film in-plane stress while functions to significantly reduce T C .","PeriodicalId":12228,"journal":{"name":"European Physical Journal-applied Physics","volume":"78 1","pages":"60301"},"PeriodicalIF":1.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81628556","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
Structural and optical properties of molybdenum oxide thin films prepared by the dip coating technique 浸涂技术制备的氧化钼薄膜的结构和光学性能
IF 1 4区 物理与天体物理
European Physical Journal-applied Physics Pub Date : 2021-03-01 DOI: 10.1051/EPJAP/2021200366
D. Ahmad, M. A. Khan, A. Mahmood, A. Sohail, S. Gillani
{"title":"Structural and optical properties of molybdenum oxide thin films prepared by the dip coating technique","authors":"D. Ahmad, M. A. Khan, A. Mahmood, A. Sohail, S. Gillani","doi":"10.1051/EPJAP/2021200366","DOIUrl":"https://doi.org/10.1051/EPJAP/2021200366","url":null,"abstract":"Due to their excellent structural and optical properties of molybdenum oxide thin films are used in various applications such as gas-sensing, solar cells, optoelectronic and medical physics. The present study is related to the synthesis of molybdenum oxide thin films prepared by dip coating technique and the films were characterized by using various techniques such as XRD, SEM and UV-visible spectroscopy. The monoclinic crystal structure and the crystallite size (29.16–52.77 nm) was investigated by X rays diffraction (XRD) analysis. SEM micrograph was used to identify the nano tubes in MoO3 thin film and UV-visible spectroscopy exhibits the maximum absorption in ultra-violet region and band gap decrease (3.17–2.71 eV) with increased the inner transition states in molybdenum thin film. Finally, the results show that the series of molybdenum oxides MoO1 (Sample 1), MoO2 (Sample 2) and MoO3 (sample 3) exhibited interesting structural and optical properties which make them good candidates for photo catalytic activity.","PeriodicalId":12228,"journal":{"name":"European Physical Journal-applied Physics","volume":"57 1","pages":"30301"},"PeriodicalIF":1.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75951231","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
Fabrication and repair of GaN nanorods by plasma etching with self-assembled nickel nanomasks 自组装镍纳米掩膜等离子体刻蚀制备和修复GaN纳米棒
IF 1 4区 物理与天体物理
European Physical Journal-applied Physics Pub Date : 2021-03-01 DOI: 10.1051/EPJAP/2021210002
Shiying Zhang, Lei Zhang, Yueyao Zhong, Guodong Wang, Qingjun Xu
{"title":"Fabrication and repair of GaN nanorods by plasma etching with self-assembled nickel nanomasks","authors":"Shiying Zhang, Lei Zhang, Yueyao Zhong, Guodong Wang, Qingjun Xu","doi":"10.1051/EPJAP/2021210002","DOIUrl":"https://doi.org/10.1051/EPJAP/2021210002","url":null,"abstract":"High crystal quality GaN nanorod arrays were fabricated by inductively coupled plasma (ICP) etching using self-organized nickel (Ni) nano-islands mask on GaN film and subsequent repaired process including annealing in ammonia and KOH etching. The Ni nano-islands have been formed by rapid thermal annealing, whose density, shape, and dimensions were regulated by annealing temperature and Ni layer thickness. The structural and optical properties of the nanorods obtained from GaN epitaxial layers were comparatively studied by high-resolution X-ray diffraction (HRXRD), Raman spectroscopy and photoluminescence (PL). The results indicate that damage induced by plasma can be successfully healed by annealing in NH3 at 900 °C. The average diameter of the as-etched nanorod was effectively reduced and the plasma etch damage was removed after a wet treatment process in a KOH solution. It was found that the diameter of the GaN nanorod was continuously reduced and the PL intensity first increased, then reduced and finally increased as the KOH etching time sequentially increased.","PeriodicalId":12228,"journal":{"name":"European Physical Journal-applied Physics","volume":"209 1","pages":"30405"},"PeriodicalIF":1.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77284922","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
Effect of Ca and/or Mn substitution on thermoelectric properties of SrTiO3 Ca和/或Mn取代对SrTiO3热电性能的影响
IF 1 4区 物理与天体物理
European Physical Journal-applied Physics Pub Date : 2021-03-01 DOI: 10.1051/EPJAP/2021200297
D. M. Radheep
{"title":"Effect of Ca and/or Mn substitution on thermoelectric properties of SrTiO3","authors":"D. M. Radheep","doi":"10.1051/EPJAP/2021200297","DOIUrl":"https://doi.org/10.1051/EPJAP/2021200297","url":null,"abstract":"Thermoelectric properties have been investigated for Sr0.5 Ca0.5 Ti1-x Mnx O3 (x  = 0.25, 0.5, 0.75) and Sr0.75 Ca0.25 Ti0.75 Mn0.25 O3 perovskite polycrystalline samples synthesized by solid-state reaction method. Following physical properties such as thermal conductivity, electrical resistivity, Seebeck coefficient, power factor and figure of merit (ZT) were measured. The substitution of Ca2+ in Sr2+ site or/and mixed valence Mn in Ti site creates appreciable enhancement in the thermoelectric properties with an increase of ZT from 0.5 to 0.69 at room temperature. The origin for the enrichment of ZT of the investigated samples around room temperature is due to substitution induced distortion in the cubic lattice.","PeriodicalId":12228,"journal":{"name":"European Physical Journal-applied Physics","volume":"718 1","pages":"30902"},"PeriodicalIF":1.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74765662","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
A study on the tensile force and shear strain of trilayer graphene 三层石墨烯的拉伸力和剪切应变研究
IF 1 4区 物理与天体物理
European Physical Journal-applied Physics Pub Date : 2021-03-01 DOI: 10.1051/EPJAP/2021200357
D. K. Das, S. K. Sahoo, Pranati Purohit, S. Sahoo
{"title":"A study on the tensile force and shear strain of trilayer graphene","authors":"D. K. Das, S. K. Sahoo, Pranati Purohit, S. Sahoo","doi":"10.1051/EPJAP/2021200357","DOIUrl":"https://doi.org/10.1051/EPJAP/2021200357","url":null,"abstract":"The study of mechanical properties of graphene is one of the hottest topics in graphene physics. As the number of graphene layers increases, the mechanical property changes. Y. Liu et al., J. Mech. Phys. Solids, 60 , 591 (2012) [] have studied the tensile force and shear strain of bilayer graphene. They observed both the parameters increase as the length increases. In this paper, we study the same parameters for trilayer graphene. In trilayer graphene, we observe that with increasing length of the material, the tensile force increases and shear strain decreases. The change of mechanical behaviour from bilayer to trilayer graphene is a transition which would continue to higher number of layers with potential implications in near future.","PeriodicalId":12228,"journal":{"name":"European Physical Journal-applied Physics","volume":"36 5 1","pages":"30404"},"PeriodicalIF":1.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76073609","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
Fast response acetone-sensing properties of SnO2 nanoparticles prepared by the sol-gel method 溶胶-凝胶法制备SnO2纳米颗粒的快速响应丙酮传感性能
IF 1 4区 物理与天体物理
European Physical Journal-applied Physics Pub Date : 2021-03-01 DOI: 10.1051/EPJAP/2021200361
Jiaxing Wang, Haijing Yu, Yong Zhang
{"title":"Fast response acetone-sensing properties of SnO2 nanoparticles prepared by the sol-gel method","authors":"Jiaxing Wang, Haijing Yu, Yong Zhang","doi":"10.1051/EPJAP/2021200361","DOIUrl":"https://doi.org/10.1051/EPJAP/2021200361","url":null,"abstract":"SnO2 nanoparticle architectures were successfully synthesized using a sol-gel method and developed for acetone gas detection. The morphology and structure of the particles were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The SnO2 nanoparticle architectures were configured as high-performance sensors to detect acetone and showed a very fast response time ( nanoparticles should be promising candidates for designing and fabricating acetone gas sensors with good gas sensing performance. The possible gas sensing mechanism is also presented.","PeriodicalId":12228,"journal":{"name":"European Physical Journal-applied Physics","volume":"62 1","pages":"30401"},"PeriodicalIF":1.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72765603","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
An experimental and theoretical correlation of inhibition effect of some dihydropyridine on mild steel in 1 M HCL 某些二氢吡啶在1 M盐酸中对低碳钢缓蚀作用的实验与理论关联
IF 1 4区 物理与天体物理
European Physical Journal-applied Physics Pub Date : 2021-02-01 DOI: 10.1051/epjap/2021200229
I. Fahim, M. Tridane, S. Belaaouad
{"title":"An experimental and theoretical correlation of inhibition effect of some dihydropyridine on mild steel in 1 M HCL","authors":"I. Fahim, M. Tridane, S. Belaaouad","doi":"10.1051/epjap/2021200229","DOIUrl":"https://doi.org/10.1051/epjap/2021200229","url":null,"abstract":"The corrosion inhibition of mild steel in 1 M HCl solution by some dihydropyridine has been studied using gravimetric, electrochemical impedance spectroscopy, potentiodynamic polarization techniques and quantum chemical study. The results of weight loss and Tafel polarization measurements showed that among the studied compounds, Isradipine has good inhibiting properties for steel corrosion in acidic bath, with 98% inhibition efficiency at optimum concentration 400 ppm. The inhibition is of a mixed anodic–cathodic nature. The adsorption behaviour of the investigated compounds is found to obey Langmuir adsorption isotherm. Quantum chemical parameters were correlated with the experimental results.","PeriodicalId":12228,"journal":{"name":"European Physical Journal-applied Physics","volume":"43 1","pages":"21301"},"PeriodicalIF":1.0,"publicationDate":"2021-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90921888","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: 5
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