Indian Journal of Physics最新文献_第9页

Active polarization controlling in optical fiber links using optimization algorithms 利用优化算法在光纤链路中实现主动偏振控制

IF 2 4区物理与天体物理

Indian Journal of Physics Pub Date : 2024-07-24 DOI: 10.1007/s12648-024-03342-w

Hamid Asgari, Majid Khodabandeh, Soheil Hajibaba, Amir Hosein Dadahkhani, Seyed Ahmad Madani

引用次数: 0

Wettability measurements of agarose thin films patterned by 193 nm ArF excimer laser 193 纳米 ArF 准分子激光图案化琼脂糖薄膜的润湿性测量

IF 2 4区物理与天体物理

Indian Journal of Physics Pub Date : 2024-07-24 DOI: 10.1007/s12648-024-03345-7

Q. A. Al-Jarwany, Abdulsattar A. Aesa, A. F. Mohammed, C. D. Walton

{"title":"Wettability measurements of agarose thin films patterned by 193 nm ArF excimer laser","authors":"Q. A. Al-Jarwany, Abdulsattar A. Aesa, A. F. Mohammed, C. D. Walton","doi":"10.1007/s12648-024-03345-7","DOIUrl":"https://doi.org/10.1007/s12648-024-03345-7","url":null,"abstract":"The control and knowledge over liquid–solid interactions is vital for the design optimization of materials, processes in a variety of uses. Thus, investigating wettability plays a great role in such interactions. In this paper, characterisation and the effect of 193 nm excimer laser patterning on the agarose thin films are studied. Different techniques; atomic force microscopy (AFM), scanning electron microscopy and white light interferometer are used to characterise the agarose thin films. UV–Vis spectrophotometer was used to measure the absorption and transmission of thin films. An absorption coefficient and grating period of 1.7 × 103 cm−1, and 11.5 μm respectively are reported. AFM measurements show the softness of non-irradiated thin films. The obtained results show that the agarose films' surface properties are considerably changed by the laser-induced structuring. Higher contact angles indicate an important reduction in wettability being a consequence of the laser grating's enhanced surface roughness. Measured contact angles and free surface energy of patterning thin film show alterations in surface wettability.","PeriodicalId":584,"journal":{"name":"Indian Journal of Physics","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141776853","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

The control of the symmetry of quantum beam splitting in the hybrid nanosystem 控制混合纳米系统中量子分束的对称性

IF 2 4区物理与天体物理

Indian Journal of Physics Pub Date : 2024-07-24 DOI: 10.1007/s12648-024-03319-9

Su-Ryon Ri, Myong-Chol Ko, Nam-Chol Kim, Ju-Song Ryom, Chol-Min Kim

引用次数: 0

Polypyrrole doped zirconium dioxide composite as electrode material for super-capacitor applications 掺杂聚吡咯的二氧化锆复合材料作为超级电容器应用的电极材料

IF 2 4区物理与天体物理

Indian Journal of Physics Pub Date : 2024-07-24 DOI: 10.1007/s12648-024-03355-5

Feng Zhao, M. Irfan, Waseem Abbas, Gideon F. B. Solre, Bandar Ali Al-Asbahi, Saif M. H. Qaid

{"title":"Polypyrrole doped zirconium dioxide composite as electrode material for super-capacitor applications","authors":"Feng Zhao, M. Irfan, Waseem Abbas, Gideon F. B. Solre, Bandar Ali Al-Asbahi, Saif M. H. Qaid","doi":"10.1007/s12648-024-03355-5","DOIUrl":"https://doi.org/10.1007/s12648-024-03355-5","url":null,"abstract":"A PPy-ZrO2 composite was synthesized using in-situ polymerization, resulting in polypyrrole-doped Zirconium dioxide. This composite was then studied for its electrochemical characteristics as an electrode material in supercapacitors. The X-ray diffraction (XRD) study confirmed the formation of the composite. Scanning Electron Microscopy (SEM) also confirms platelet structure in the PPy-ZrO2 composite. Fourier transform infrared (FTIR) analysis showed strong interaction between PPy and ZrO2 nanoparticles. Synthesized samples are characterized and assessed by impedance, cyclic voltammogram, and galvanostatic charge/discharge. The maximum specific capacitance of 1265 Fg−1 at 1 Ag−1 is observed at PPy-ZrO2 electrodes. The energy density of 28 Wh kg−1 is found at 378 W kg−1 (power density), and the impedance of pure PPy ~ 13 Ω to PPy-ZrO2 ~ 11 Ω of the composite is decreased, which may represent a beneficial effect of ZrO2-particles and PPy for the development of an electrode material.","PeriodicalId":584,"journal":{"name":"Indian Journal of Physics","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141776776","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

Ultrasonic Grüneisen parameters of plutonium monopnictides 钚单态化物的超声格吕奈森参数

IF 2 4区物理与天体物理

Indian Journal of Physics Pub Date : 2024-07-20 DOI: 10.1007/s12648-024-03334-w

Amit Kumar, Shakti Pratap Singh, Anurag Singh, Devraj Singh, Ram Krishna Thakur, Ajit Kumar Maddheshiya

{"title":"Ultrasonic Grüneisen parameters of plutonium monopnictides","authors":"Amit Kumar, Shakti Pratap Singh, Anurag Singh, Devraj Singh, Ram Krishna Thakur, Ajit Kumar Maddheshiya","doi":"10.1007/s12648-024-03334-w","DOIUrl":"https://doi.org/10.1007/s12648-024-03334-w","url":null,"abstract":"The Born–Mayer and Coulomb potential has been utilized to figure out higher order elastic constants for the plutonium monopnictides PuPn (Pn: N, P, As, Sb, Bi) in the temperature interval 100–500 K. The mechanical constants have been calculated using the Voigt–Reuss–Hill (VRH) approximation at room temperature using the second order elastic constants. The Born stability conditions have been found out for finding the nature and strength of PuPn. The first order pressure derivatives of second order elastic constants and mechanical properties have been computed with the help of second- and third-order elastic constants in the temperature interval 100–500 K. The second order elastic constant and density has been used to obtain the ultrasonic velocities for longitudinal and shear modes of propagation and the Debye average velocity along < 100 > , < 110 > and < 111 > directions in the temperature span 100–500 K. Finally, the ultrasonic Grüneisen parameters of PuPn have been enumerated along < 100 > , < 110 > and < 111 > directions at room temperature. Evaluated results have been discussed and correlated with applicable data of similar type materials.","PeriodicalId":584,"journal":{"name":"Indian Journal of Physics","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738875","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

Bird nest-like shape of polypyrrole-iodide/iodine complex nanocomposite with highly optical and morphological behavior for green hydrogen generation 具有高度光学和形态学特性的鸟巢状聚吡咯-碘/碘复合物纳米复合材料用于绿色制氢

IF 2 4区物理与天体物理

Indian Journal of Physics Pub Date : 2024-07-19 DOI: 10.1007/s12648-024-03353-7

Mohamed Rabia, Eman Aldosari, Mahmoud Moussa

{"title":"Bird nest-like shape of polypyrrole-iodide/iodine complex nanocomposite with highly optical and morphological behavior for green hydrogen generation","authors":"Mohamed Rabia, Eman Aldosari, Mahmoud Moussa","doi":"10.1007/s12648-024-03353-7","DOIUrl":"https://doi.org/10.1007/s12648-024-03353-7","url":null,"abstract":"A novel bird nest-like structured complex nanocomposite, known as polypyrrole-iodide/iodine (Ppy-I/I2), has been successfully synthesized using a one-pot oxidation reaction involving pyrrole and iodine materials. This complex nanocomposite exhibits highly promising characteristics both in terms of morphology and optics properties. The distinctive morphological features of the Ppy-I/I2 complex nanocomposite are particularly noteworthy. Its bird nest-like structure consists of particles with well-defined cavities inside and small particles adorning the exterior surfaces. The distinctive morphology significantly improves the active sites and acts as an efficient photon trap, enhancing its exceptional optical properties. The bandgap of this composite measures 2.45 eV, which is a significant advantage for a polymer-based complex composite. This bandgap value makes it particularly applicable, especially in the realm of optoelectronics and photoelectrochemical processes. One of the standout applications for this complex nanocomposite is its use as a photocathode for the H2 generation using the Red Sea water. Under various light conditions: white light and specific photon wavelengths, the photocathode demonstrates its efficiency. The current density (Jph) values obtained are highly indicative of its performance, reaches − 0.8 mA cm−2 under white light. Moreover, at temperatures 30–50 °C, the Jph values show a notable improvement, rising from − 0.8 to − 0.89 mA cm−2, which highlights the photocathode's versatility and potential for enhanced hydrogen generation.","PeriodicalId":584,"journal":{"name":"Indian Journal of Physics","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738882","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

In-depth dielectric study of bulk nanocrystalline β-H2Pc with different biasing and photovoltaic performance of β-H2Pc/p-Si solar cell under varied illumination 不同偏压下块状纳米晶 β-H2Pc 的深度介电研究以及不同光照下 β-H2Pc/p-Si 太阳能电池的光伏性能

IF 2 4区物理与天体物理

Indian Journal of Physics Pub Date : 2024-07-18 DOI: 10.1007/s12648-024-03267-4

A. A. El-Saady, A. A. M. Farag, N. Roushdy, Dalia M. Abdel Basset, M. M. El-Nahass

{"title":"In-depth dielectric study of bulk nanocrystalline β-H2Pc with different biasing and photovoltaic performance of β-H2Pc/p-Si solar cell under varied illumination","authors":"A. A. El-Saady, A. A. M. Farag, N. Roushdy, Dalia M. Abdel Basset, M. M. El-Nahass","doi":"10.1007/s12648-024-03267-4","DOIUrl":"https://doi.org/10.1007/s12648-024-03267-4","url":null,"abstract":"This study offers a comprehensive analysis of the thermal stability of β-metal-free phthalocyanine (β-H2Pc) powder, demonstrating its resilience at temperatures of approximately 470°C. The nanocrystalline nature of β-H2Pc was confirmed using scanning electron microscopy, particle size analysis, and atomic force microscopy. Furthermore, an extensive exploration of the dielectric properties of bulk β-H2Pc, in the form of compacted pellets, was undertaken over a wide frequency range (10 Hz–20 MHz) at different temperatures (303, 348, and 423 K), with consideration of the impact of DC-bias voltages (− 2 V to 2 V). Interestingly, the examined dielectric characteristics exhibited a substantial dependency on bias voltage, frequency, and temperature. The series resistance diminishes with increasing temperature, indicating enhanced device performance under elevated thermal conditions. In addition, this study delved into the photovoltaic characteristics of the β-H2Pc/p-Si diode under various illumination levels and was used to evaluate its potential for optoelectronic applications. The observed current density–voltage behavior demonstrates diode-like properties, with the generated current showing evidence of thermal activation. Furthermore, the Fill Factor decreased with increasing illumination intensity and power.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":584,"journal":{"name":"Indian Journal of Physics","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738878","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

Exploring electronic, structural, optical, and elastic properties of MgX2O6 (x = Ta, Nb) compounds for photovoltaic and optoelectronic applications: first study effort 探索用于光伏和光电应用的 MgX2O6（x = Ta、Nb）化合物的电子、结构、光学和弹性特性：首次研究工作

IF 1.6 4区物理与天体物理

Indian Journal of Physics Pub Date : 2024-07-18 DOI: 10.1007/s12648-024-03147-x

Murat Aycibin, Mustafa Çelebi, Mehmet Erzen, Harun Akkuş

引用次数: 0

Synthesis and characterization of structural, electrical, magnetic and microwave properties of Ba0.5Sr0.5Fe12O19-polyaniline nanocomposites Ba0.5Sr0.5Fe12O19 聚苯胺纳米复合材料的结构、电学、磁学和微波特性的合成与表征

IF 2 4区物理与天体物理

Indian Journal of Physics Pub Date : 2024-07-18 DOI: 10.1007/s12648-024-03336-8

Tavus Hosseinabad, Gholamreza Nabiyouni, Kambiz Hedayati

{"title":"Synthesis and characterization of structural, electrical, magnetic and microwave properties of Ba0.5Sr0.5Fe12O19-polyaniline nanocomposites","authors":"Tavus Hosseinabad, Gholamreza Nabiyouni, Kambiz Hedayati","doi":"10.1007/s12648-024-03336-8","DOIUrl":"https://doi.org/10.1007/s12648-024-03336-8","url":null,"abstract":"In this article, barium strontium hexaferrite was synthesized using the surfactant-free ultrasonic method. Then Ba0.5Sr0.5Fe12O19/polyaniline nanocomposites were made in the form of thick layer, thin film and nanofibers. The bulk layer forges via the in-situ synthesis method, and the thin film is synthesized by electrodeposition in cyclovoltammetry mode. The nanofibers were manufactured using the electrospinning method. The products were investigated via X-ray diffractometer, field emission scanning electron microscope, transmission electron microscope, and vibration sample magnetometer. The band gap, exciton binding energy, and the Urbach energy of Ba0.5Sr0.5Fe12O19 nanoparticles were calculated by optical and electrical methods. The reflection loss of nanocomposites at frequencies between 2 and 18 GHz was measured by Vector Network Analyzer. The magnetic properties of nanoparticles were weakened by their presence in the polymer matrix. The DC conductivity of polyaniline decreased by adding ferrite nanoparticles to it and reached from 0.67 S.cm−1 in pure polyaniline to 2.5 × 10–5 S.cm−1 in composite nanofibers. The highest value of reflection loss (RLmin) − 16.99 dB at the frequency (fmin) of 11.2 GHz was obtained for the thick layer nanocomposite.","PeriodicalId":584,"journal":{"name":"Indian Journal of Physics","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738879","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

The radial scalar power potential and its application to quarkonium systems 径向标量幂势及其在夸克鎓系统中的应用

IF 2 4区物理与天体物理

Indian Journal of Physics Pub Date : 2024-07-17 DOI: 10.1007/s12648-024-03335-9

Etido P. Inyang, N. Ali, R. Endut, N. Rusli, S. A. Aljunid

引用次数: 0