Journal of Electrostatics最新文献_第4页

Synthesis, electrical and dielectric studies on MWCNT and fullerene-doped SnSe nanocomposites for thermoelectric applications 热电应用MWCNT和掺杂富勒烯的SnSe纳米复合材料的合成、电学和介电研究

IF 1.9 4区工程技术

Journal of Electrostatics Pub Date : 2025-07-21 DOI: 10.1016/j.elstat.2025.104138

H.L. Sandeep , B.L. Suresha , A.V. Ambika , H.S. Sumantha , Naif Mohammed Al-Hada , Bandar Ali Al-Asbahi

{"title":"Synthesis, electrical and dielectric studies on MWCNT and fullerene-doped SnSe nanocomposites for thermoelectric applications","authors":"H.L. Sandeep , B.L. Suresha , A.V. Ambika , H.S. Sumantha , Naif Mohammed Al-Hada , Bandar Ali Al-Asbahi","doi":"10.1016/j.elstat.2025.104138","DOIUrl":"10.1016/j.elstat.2025.104138","url":null,"abstract":"<div><div>This study reports the synthesis, structural characterization, and electrical and dielectric performance of tin selenide (SnSe) nanocomposites doped with multi-walled carbon nanotubes (MWCNTs) and fullerene (C<sub>60</sub>) for thermoelectric applications. SnSe, an earth-abundant and non-toxic layered semiconductor, suffers from low electrical conductivity in its polycrystalline form, limiting its thermoelectric efficiency. To address this, SnSe composites with varying ratios of MWCNTs and C<sub>60</sub> were fabricated via a hydrothermal method. Structural analyses (XRD, FESEM, HRTEM, SAED) confirmed successful dopant incorporation, enhanced crystallinity, and microstructural modifications, while FT-IR spectra revealed chemical interactions within the matrix. Electrical characterization, including AC/DC conductivity, dielectric measurements, and impedance spectroscopy, demonstrated significant improvements in charge transport, dielectric constant, and reduced impedance, especially in the co-doped SnSe<sub>0.90</sub> + MWCNT<sub>0.05</sub> + C60 <sub>0.05</sub> sample. Temperature-dependent conductivity and Arrhenius analysis revealed thermally activated behavior with the lowest activation energy in co-doped composites, indicating efficient carrier hopping. These results confirm the synergistic effect of MWCNTs and C<sub>60</sub> in enhancing electrical performance, offering a promising pathway for scalable, high-efficiency SnSe-based thermoelectric materials. This work provides valuable insights for designing nanostructured energy materials with tailored electronic properties.</div></div>","PeriodicalId":54842,"journal":{"name":"Journal of Electrostatics","volume":"138 ","pages":"Article 104138"},"PeriodicalIF":1.9,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144672173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on electrostatic elimination characteristics of silicon needle discharge 硅针放电的静电消除特性研究

IF 1.9 4区工程技术

Journal of Electrostatics Pub Date : 2025-07-16 DOI: 10.1016/j.elstat.2025.104117

Yanyi Wang , Li Wang , Yong Chen , Zihan Yuan , Xuandong Liu

{"title":"Study on electrostatic elimination characteristics of silicon needle discharge","authors":"Yanyi Wang , Li Wang , Yong Chen , Zihan Yuan , Xuandong Liu","doi":"10.1016/j.elstat.2025.104117","DOIUrl":"10.1016/j.elstat.2025.104117","url":null,"abstract":"<div><div>In the process of semiconductor production, charge accumulation can easily lead to electrostatic breakdown of the chip. With a silicon needle as the electrode, the DC high voltage electrostatic eliminator can achieve effective electrostatic control without metal impurities. Therefore, it has a broad application prospect. To investigate the efficacy and characteristics of electrostatic elimination using silicon needle electrodes, a test platform was established to evaluate their performance under the direct current conditions. The static decay time and balance voltage of the electrostatic elimination were determined as the characteristic indices. This study examined the influence of voltage amplitude, voltage polarity, operating distance and wind speed on the electrostatic elimination. The experimental results indicate that an increase in voltage accelerates the speed of electrostatic dissipation. A polarity effect was observed during the electrostatic elimination process of silicon needles. The static decay time under negative polarity is shorter than that under positive polarity. Furthermore, the balance voltage of negative polarity demonstrates superior performance compared to positive polarity. Additionally, the static decay time increases nonlinearly with the increase of the operating distance. In order to achieve high speed and balance in electrostatic elimination performance, it is recommended to add a specific direction of wind around the electrode, which also reduces the output requirements of the power supply.</div></div>","PeriodicalId":54842,"journal":{"name":"Journal of Electrostatics","volume":"136 ","pages":"Article 104117"},"PeriodicalIF":1.9,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144634088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of Critical Energy Density concept for Minimum Ignition Energy determination 临界能量密度概念在最小点火能量确定中的应用

IF 1.9 4区工程技术

Journal of Electrostatics Pub Date : 2025-07-15 DOI: 10.1016/j.elstat.2025.104131

Sabrina Copelli , Marco Barozzi , Davide Ballinari , Ottavio Lugaresi , Riccardo Moneta

引用次数: 0

Free rotation of conducting and dielectric spheres in a uniform electrostatic field 导电球和介电球在均匀静电场中的自由旋转

IF 1.9 4区工程技术

Journal of Electrostatics Pub Date : 2025-07-11 DOI: 10.1016/j.elstat.2025.104120

A. Duviryak

引用次数: 0

Mathematical identities for the electrostatic potential of a uniformly charged ring: A rigorous proof 均匀带电环静电势的数学恒等式：严格的证明

IF 1.9 4区工程技术

Journal of Electrostatics Pub Date : 2025-07-08 DOI: 10.1016/j.elstat.2025.104125

J. Ricardo de Sousa , Marcio Gomes , Orion Ciftja

{"title":"Mathematical identities for the electrostatic potential of a uniformly charged ring: A rigorous proof","authors":"J. Ricardo de Sousa , Marcio Gomes , Orion Ciftja","doi":"10.1016/j.elstat.2025.104125","DOIUrl":"10.1016/j.elstat.2025.104125","url":null,"abstract":"<div><div>We show a rigorous mathematical proof of some mathematical identities that were uncovered during studies of the electrostatic potential generated by a uniformly charged ring. The authors in Ciftja et al., (2009) presented two independent expressions for this potential on the plane of the ring: one derived using <em>complete elliptic integrals</em> and the other one obtained through an integral involving <em>Bessel functions</em>. By asserting the equivalence of these two expressions they proposed a remarkable identity that connects integrals of products of Bessel functions with complete elliptic integrals of the first kind. However, they were unable to provide a formal mathematical proof of these results. The goal of this paper is to fill this gap by presenting a rigorous and detailed derivation of these mathematical identities. To accomplish this task, we employed standard transformations from the theory of special functions. The key steps in the proof include rewriting the Bessel integral representation of the potential in terms of the Legendre function of the second kind and subsequently expressing it in terms of the complete elliptic integral via known transformations. By establishing the exact equivalence between the Bessel-based and complete elliptic integral-based formulations of the problem, we not only can prove the proposed identities, but also reinforce their relevance for future applications in electrostatics and mathematical physics. These results demonstrate the deep connections that exist among various special functions and highlight the importance of rigorous analysis in validating assumptions made in earlier theoretical work.</div></div>","PeriodicalId":54842,"journal":{"name":"Journal of Electrostatics","volume":"136 ","pages":"Article 104125"},"PeriodicalIF":1.9,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ignition risk due to electrostatic discharges obtained from small scoops 由小勺子产生的静电放电引起的点火危险

IF 1.9 4区工程技术

Journal of Electrostatics Pub Date : 2025-07-07 DOI: 10.1016/j.elstat.2025.104128

Jeremy M. Smallwood

引用次数: 0

Improved insulation performance of HVDC GIS cable terminal with aromatic molecule-doped silicone oil coating 芳香族分子掺硅油涂层改善高压直流GIS电缆终端绝缘性能

IF 1.9 4区工程技术

Journal of Electrostatics Pub Date : 2025-07-04 DOI: 10.1016/j.elstat.2025.104129

Wenbo Zhu , Kaulya Pathiraja , Baojun Hui , Xu Guo , Mingli Fu , Shijie Du , Linjie Zhao , Yuhuai Wang , Jin Li

引用次数: 0

Investigating the effect of installing an electrostatic system on the performance of an orchard automizer sprayer 研究安装静电系统对果园自动喷雾机性能的影响

IF 1.9 4区工程技术

Journal of Electrostatics Pub Date : 2025-06-20 DOI: 10.1016/j.elstat.2025.104122

Rasool Khodabakhshian Kargar , Hajar Sadat Seyyed Ali Bik Lavasani , Seyed Morteza Javadpour

{"title":"Investigating the effect of installing an electrostatic system on the performance of an orchard automizer sprayer","authors":"Rasool Khodabakhshian Kargar , Hajar Sadat Seyyed Ali Bik Lavasani , Seyed Morteza Javadpour","doi":"10.1016/j.elstat.2025.104122","DOIUrl":"10.1016/j.elstat.2025.104122","url":null,"abstract":"<div><div>Despite knowledge of the harmful effects of pesticides, the production and sale of pesticides and sprayers remain a growing industry worldwide, particularly in Asia. Given the current need to ensure food supply for the increasing global population and the necessity of pesticide use, the development of innovative systems presents a practical and rapid solution to reduce pesticide consumption. Therefore, the utilization of pesticide technologies, such as electrostatic sprayers, can not only enhance the performance of pesticide application but also reduce the adverse environmental impacts of pesticide use. Furthermore, since electrostatic systems are relatively simple and can be installed on various types of sprayers, they can be commercially utilized in agriculture within a short timeframe. In this study, an electrostatic system was designed and constructed to charge pesticide particles and improve the performance of orchard automizer sprayers. The performance of this system was assessed, and it successfully charged water droplets through the electrostatic induction method, achieving a maximum specific charge of 1.0 millicoulombs per kilogram at a flow rate of 1 L per minute and a distance of 10 centimeters from the sprayer nozzle, using a voltage of 20 kilovolts. Moreover, the performance of the electrostatic orchard automizer sprayer was evaluated under real orchard conditions, considering pesticide deposition on trees and the ground, as well as particle drift. The assessment involved image processing of water-sensitive paper to evaluate pesticide deposition. The electrostatic system significantly reduced particle drift to zero, and on average, 12 % of the water-sensitive paper surfaces, placed for simulating pesticide deposition on the back of leaves, became pesticide-laden.</div></div>","PeriodicalId":54842,"journal":{"name":"Journal of Electrostatics","volume":"136 ","pages":"Article 104122"},"PeriodicalIF":1.9,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144320837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Asymptotic potential of a rose-shaped disk 玫瑰形圆盘的渐近势

IF 1.9 4区工程技术

Journal of Electrostatics Pub Date : 2025-06-11 DOI: 10.1016/j.elstat.2025.104099

Alina E. Sagaydak , Zurab K. Silagadze

引用次数: 0

Study on droplet splitting in single-plate OEW chips 单片OEW芯片中液滴分裂的研究

IF 1.9 4区工程技术

Journal of Electrostatics Pub Date : 2025-06-06 DOI: 10.1016/j.elstat.2025.104111

Shang Gao , Junyan Tian , Jingchuan Yao, Hanyun Zheng, Enqing Liu, Jia Zhou

{"title":"Study on droplet splitting in single-plate OEW chips","authors":"Shang Gao , Junyan Tian , Jingchuan Yao, Hanyun Zheng, Enqing Liu, Jia Zhou","doi":"10.1016/j.elstat.2025.104111","DOIUrl":"10.1016/j.elstat.2025.104111","url":null,"abstract":"<div><div>Precise droplet manipulation is fundamental to digital microfluidics, yet traditional electrowetting techniques are constrained by fixed electrode geometries, limiting their adaptability. Optoelectrowetting (OEW) offers a reconfigurable solution through light-induced virtual electrodes, but achieving controlled droplet splitting remains a key challenge. Here, we present an AI-driven single-plate OEW platform that autonomously generates optical virtual electrodes, enabling unassisted droplet splitting in an oil environment across a volume range of 4–20 μL. We introduce a dimensionless parameter <span><math><mrow><mi>Γ</mi></mrow></math></span> to optimize droplet splitting performance of split droplets, revealing a linear relationship between <span><math><mrow><mi>Γ</mi></mrow></math></span> and the lateral displacement of the optical virtual electrode axis relative to the droplet axis. Additionally, our study demonstrates that increasing droplet volume necessitates a higher minimum splitting field strength, while greater medium viscosity further elevates this threshold. These findings establish a quantitative framework for optimizing OEW-based droplet manipulation, advancing its potential for scalable, high-precision microfluidic applications.</div></div>","PeriodicalId":54842,"journal":{"name":"Journal of Electrostatics","volume":"136 ","pages":"Article 104111"},"PeriodicalIF":1.9,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144229967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0