International Journal of Scientific Research in Physics and Applied Sciences最新文献_第7页

Correlative Analysis of Long Term Cosmic Ray Variation in Relation with Interplanetary Magnetic Field 宇宙射线长期变化与行星际磁场的相关性分析

International Journal of Scientific Research in Physics and Applied Sciences Pub Date : 2019-04-30 DOI: 10.26438/ijsrpas/v7i2.6670

S. A. Khan, A. K.Saxena, C. M. Tiwari

引用次数: 0

Synthesis and Characterization of High-Performance Solar Cell 高性能太阳能电池的合成与表征

International Journal of Scientific Research in Physics and Applied Sciences Pub Date : 2019-04-30 DOI: 10.26438/ijsrpas/v7i2.2426

A. Verma, A. Diwakar, R. Patel

{"title":"Synthesis and Characterization of High-Performance Solar Cell","authors":"A. Verma, A. Diwakar, R. Patel","doi":"10.26438/ijsrpas/v7i2.2426","DOIUrl":"https://doi.org/10.26438/ijsrpas/v7i2.2426","url":null,"abstract":"— High-performance solar-cell is designed for lead-free perovskite materials, synthesis of using for the organometallic halides. The perovskite materials having a high-efficiency charge carrier and identified low-cost materials based commercial photo-voltaic cell. It is an unusually breakthrough of the drawback of high-efficiency photo-voltaic solar-cell because in this solar-cell replaced harmful lead using various perovskite materials like (Sn2+, Ge2+, Mg2+, Ca2+, Sr2+, Ba2+, Cu2+, Fe2+, Pd2+, and Eu2+). We predict the structure and optical properties of perovskite solar-cell based on Ge and Sn solid solutions, CH 3 NH 3 Sn (1−x) Ge x I 3 (0 ≤ x ≤ 1). This material is having the band gaps from 1.3 to 2.0 eV, and it is suitable for an optoelectronic application's range, from single junction devices and top cells for placement to light-emitting layer. The power efficiency of lead-free perovskite solar-cell (LFPSCs) is more than 27%. Which has ABO 3 type orthorhombic crystal structure and successfully examine its structure using X-ray diffraction (XRD) technology. In this research, we synthesis successfully lead-free perovskite solar-cell (LFPSCs)","PeriodicalId":14348,"journal":{"name":"International Journal of Scientific Research in Physics and Applied Sciences","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82178366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Dielectric Relaxation Studies of Triethanolamine with 2-Alkoxyethanol using time Domain Reflectometry Technique 用时域反射法研究三乙醇胺与2-烷氧乙醇的介电弛豫

International Journal of Scientific Research in Physics and Applied Sciences Pub Date : 2019-02-28 DOI: 10.26438/ijsrpas/v7i1.1834

S. Kumar, R. Amalanathan

{"title":"Dielectric Relaxation Studies of Triethanolamine with 2-Alkoxyethanol using time Domain Reflectometry Technique","authors":"S. Kumar, R. Amalanathan","doi":"10.26438/ijsrpas/v7i1.1834","DOIUrl":"https://doi.org/10.26438/ijsrpas/v7i1.1834","url":null,"abstract":"Received: 22/Jan/2019, Accepted: 14/Feb/2019, Online: 28/Feb/2019 AbstractThe dielectric relaxation studies of Triethanolamine with 2-Alkoxyethanols binary liquid mixtures have been determined over the frequency range of 10 MHz to 20 GHz at different concentrations using Time Domain Reflectometer (TDR) Technique at 303.15K. The dielectric permittivity (ε') and dielectric loss (ε\") has been plotted in the dielectric complex plane. The static dielectric constant (ε0), dielectric constant at high frequency (ε∞), and relaxation time (τ) values are calculated. Using these parameters, the values of Bruggeman factor (fB), excess dielectric constant (ε E ) and excess inverse relaxation time (1/τ) E were also calculated. The effective Kirkwood correlation factor (g eff ) and corrective Kirkwood correlation factor (gf) have also been determined and discussed to yield information on the structure and dynamics of the mixtures. The long range and short range interaction between the dipoles can be studied from the thermodynamic parameter, excess Helmholtz free energy (∆F E ). The free energy of activation for relaxation time (∆Fτ) were also calculated and interpreted on the basis of nature of molecular interaction.","PeriodicalId":14348,"journal":{"name":"International Journal of Scientific Research in Physics and Applied Sciences","volume":"125 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79016248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Numerical issues in design of passive micro-mixers and its performance analysis using CFD 无源微型混合器设计中的数值问题及CFD性能分析

International Journal of Scientific Research in Physics and Applied Sciences Pub Date : 2019-02-28 DOI: 10.26438/ijsrpas/v7i1.1017

M. Amritkar, A. Patil, S. Barve, S. Gosavi

{"title":"Numerical issues in design of passive micro-mixers and its performance analysis using CFD","authors":"M. Amritkar, A. Patil, S. Barve, S. Gosavi","doi":"10.26438/ijsrpas/v7i1.1017","DOIUrl":"https://doi.org/10.26438/ijsrpas/v7i1.1017","url":null,"abstract":"Advection dominant fluid flows and transport processes in microfluidic mixing devices pose noteworthy challenges in design related simulations as regards numerical errors. In the present work, an unsteady flow model with decay constant was utilized for testing passive micro-mixer simulations for numerical error. The simulations were performed using OpenFOAM (Open-source Field Operation And Manipulation), a finite volume based open source software. Three types of hydrodynamic boundary conditions representing surface engineered device walls (hydro-active patches) were investigated as design test cases. Our study focuses upon simulated effect of these conditions on concentration profiles from the point of view of numerical error. We show that the model can be analytically treated in part to establish a particular feature in the simulated concentration profiles is a numerical artefact. Further, it is shown that this error is rectified either by changing the method of solving discretized equation or by coarsening the mesh. This process is also sensitive to the type of hydrodynamic boundary conditions imposed. A generalized grid convergence test we carried out attests to the reliability of these micro-fluidics simulation results, despite the fact that they display numerical artefacts. The paper addresses this anomaly to a strong interplay between difference equation solving methods, mesh parameters and boundary conditions in the partial differential equation (PDE) model for micro-flows in passive micro-mixers. Our investigation thus suggests that grid independence tests, instead of being based only upon cell variables and mesh parameters, should also be informed by PDE boundary conditions and difference equation solving methods. Keywords— Micro-fluidics , micro-mixer, PDE, CFD, OpenFOAM","PeriodicalId":14348,"journal":{"name":"International Journal of Scientific Research in Physics and Applied Sciences","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84902719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation on new NLO material L-histidine potassium pentaborate (LHKB5) 新型NLO材料l -组氨酸五硼酸钾的研究

International Journal of Scientific Research in Physics and Applied Sciences Pub Date : 2019-02-28 DOI: 10.26438/ijsrpas/v7i1.4651

.. C.Karnan, .. A.R.Prabakaran

引用次数: 4

Chemical Synthesis and Characterization of Nickel Sulphide Thin Film Electrode for Supercapacitor Performances 用于超级电容器性能的硫化镍薄膜电极的化学合成与表征

International Journal of Scientific Research in Physics and Applied Sciences Pub Date : 2019-02-28 DOI: 10.26438/ijsrpas/v7i1.4245

M. Sonawane, R. Patil

引用次数: 0

Slabs of Crystallographic Planes of Rutile TiO2 as a Photocatalytic Surface 作为光催化表面的金红石型二氧化钛晶体面

International Journal of Scientific Research in Physics and Applied Sciences Pub Date : 2019-02-28 DOI: 10.26438/ijsrpas/v7i1.6064

N. Tayade, M. Tirpude, P. Arjunwadkar

引用次数: 0

Band Gap Engineering of Cu2-II-IV-VI4 Quaternary Semiconductors Using PBE-GGA, TB-mBJ and mBJ+U Potentials 基于PBE-GGA、TB-mBJ和mBJ+U电位的Cu2-II-IV-VI4四元半导体带隙工程

International Journal of Scientific Research in Physics and Applied Sciences Pub Date : 2019-02-28 DOI: 10.26438/ijsrpas/v7i1.6575

J. Bhavani, Rita John

{"title":"Band Gap Engineering of Cu2-II-IV-VI4 Quaternary Semiconductors Using PBE-GGA, TB-mBJ and mBJ+U Potentials","authors":"J. Bhavani, Rita John","doi":"10.26438/ijsrpas/v7i1.6575","DOIUrl":"https://doi.org/10.26438/ijsrpas/v7i1.6575","url":null,"abstract":"Received: 06/Feb/2019, Accepted: 18/Feb/2019, Online: 28/Feb/2019 Abstract— The structural and electronic properties of Cu2ZnGeX4 (X = S, Se and Te) with a tetrahedral coordinated stannite structure have been investigated using first-principles calculations. The optimized lattice constants, anion displacement u, tetragonal distortion parameter η, band gap, density of states and bulk modulus values are reported. The modified BeckeJohnson exchange potential (TB-mBJ), is used to calculate the electronic properties of Cu based quaternary semiconductors Cu2ZnGeX4 (X = S, Se and Te) and thus the results for the band gap and other electronic properties such as Total Density of States (TDOS) and Partial Density of States (PDOS) are analyzed in detail. Also the results obtained using TB-mBJ potential are compared with the standard local density and generalized gradient approximation (GGA). Even though the comparison of results shows that the results obtained by TB-mBJ are still underestimating the experimental results. This explains the inadequacy of mBJ potential for semiconductors with strongly delocalized d electrons. Thus in this paper an on-site Coulomb U is incorporated within mBJ potential (mBJ + U) which leads to a better description of the pd hybridization and therefore the band gap which is very much comparable with the experimental results.","PeriodicalId":14348,"journal":{"name":"International Journal of Scientific Research in Physics and Applied Sciences","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90880616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Optical Characteristic Investigation on Copper Sulphide thin film for photovoltaic Applications 光伏用硫化铜薄膜光学特性研究

International Journal of Scientific Research in Physics and Applied Sciences Pub Date : 2019-02-28 DOI: 10.26438/ijsrpas/v7i1.5255

W. Immanuel, S. Deborrah, S. Inbanathan

引用次数: 0

Nonlinear Fiber Bragg Grating Based Optical Switching and Transistor Characteristics 基于非线性光纤光栅的光开关和晶体管特性

International Journal of Scientific Research in Physics and Applied Sciences Pub Date : 2019-02-28 DOI: 10.26438/ijsrpas/v7i1.9295

Poornima Rawat, S. Pawar, Tryambak A. Hiwarkar

引用次数: 0