Solid State Communications最新文献_第9页

Engineering microneedle morphology in MgCo2O4 thin films via deposition time control for advanced supercapacitors electrode 先进超级电容器电极沉积时间控制下MgCo2O4薄膜微针形貌的工程化研究

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2025-07-17 DOI: 10.1016/j.ssc.2025.116076

Mahesh Govind Bagal , Pratik Ashok Patil , Ratnamala Bhalchandra Waghmode , Balbhim Sahebrao Maharnavar , Rajendra Devidas Kale , Ramesh Jivaram Deokate , Sunanda Harishchandra Pisal

{"title":"Engineering microneedle morphology in MgCo2O4 thin films via deposition time control for advanced supercapacitors electrode","authors":"Mahesh Govind Bagal , Pratik Ashok Patil , Ratnamala Bhalchandra Waghmode , Balbhim Sahebrao Maharnavar , Rajendra Devidas Kale , Ramesh Jivaram Deokate , Sunanda Harishchandra Pisal","doi":"10.1016/j.ssc.2025.116076","DOIUrl":"10.1016/j.ssc.2025.116076","url":null,"abstract":"<div><div>MgCo<sub>2</sub>O<sub>4</sub> thin films were successfully synthesized on stainless steel substrates using a chemical bath deposition (CBD) technique with varying deposition times of 4, 5, and 6 h to investigate their suitability for supercapacitor applications. Structural analysis via XRD confirmed the formation of the cubic spinel phase, with the 5-h deposited (T5) film exhibiting superior crystallinity and minimal dislocation defects. FTIR spectra validated the spinel structure through characteristic metal–oxygen vibrations, with T5 showing sharper peaks, indicating better structural integrity and surface properties. SEM revealed that the T5 film developed a distinct microneedle-like morphology, enhancing surface area and ion diffusion. Electrochemical studies demonstrated that the T5 electrode achieved high specific capacitances of 652.13 F g<sup>−1</sup> at 50 mV s<sup>−1</sup> and 433.1 F g<sup>−1</sup> at 1 mA cm<sup>−2</sup>, along with excellent rate capability, low charge transfer resistance, and 78 % capacitance retention over 5000 cycles. These findings emphasize that a 5-h deposition time yields optimal microstructural and electrochemical characteristics, underlining the importance of morphology control in the design of high-performance supercapacitor electrodes.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"404 ","pages":"Article 116076"},"PeriodicalIF":2.1,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144679562","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

Structural, microstructural, and dielectric properties of Al, Ga, and Cr based high-entropy spinel oxides Al、Ga和Cr基高熵尖晶石氧化物的结构、显微结构和介电性能

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2025-07-15 DOI: 10.1016/j.ssc.2025.116069

Sushanta Mandal, Neha Sharma, Sourav Marik, Tirthankar Chakraborty

{"title":"Structural, microstructural, and dielectric properties of Al, Ga, and Cr based high-entropy spinel oxides","authors":"Sushanta Mandal, Neha Sharma, Sourav Marik, Tirthankar Chakraborty","doi":"10.1016/j.ssc.2025.116069","DOIUrl":"10.1016/j.ssc.2025.116069","url":null,"abstract":"<div><div>This study investigates the structural, microstructural, and dielectric properties of high-entropy spinel oxides with compositions (Ni<sub>0.2</sub>Mg<sub>0.2</sub>Co<sub>0.2</sub>Cu<sub>0.2</sub>Zn<sub>0.2</sub>)B<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>O<span><math><msub><mrow></mrow><mrow><mn>4</mn></mrow></msub></math></span>, where B = Al, Ga, and Cr. X-ray diffraction (XRD) analysis confirms the formation of a single-phase cubic spinel structure (space group <span><math><mrow><mi>F</mi><mi>d</mi><mover><mrow><mn>3</mn></mrow><mrow><mo>̄</mo></mrow></mover><mi>m</mi></mrow></math></span><em>)</em> for all compositions, with minor variations in lattice parameters and crystallite size attributed to the ionic radii and electronic configurations of the B-site cations. Field-emission scanning electron microscopy (FESEM) reveals uniform particle distributions with minimal agglomeration, indicating controlled microstructural characteristics. Dielectric properties were systematically examined using complex impedance spectroscopy over a frequency range of 100 Hz to 1 MHz. The frequency-dependent dielectric permittivity and tangent loss are explained by hopping charge polarization and defect dipole formation, with the modified Debye model effectively describing the relaxation processes. The results demonstrate that the dielectric properties are significantly influenced by the B-site cation, with Al and Ga-based samples exhibiting lower tangent loss, making them suitable for high-frequency applications, while Cr-based samples show higher tangent loss, indicating potential for energy absorption applications. These findings highlight the potential of high-entropy spinel oxides as advanced functional materials for tailored dielectric applications, offering insights into the role of configurational entropy and cationic disorder in optimizing material performance.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"404 ","pages":"Article 116069"},"PeriodicalIF":2.1,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144663395","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}

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Thiosulfate ion degradation on gold (111) surface: A DFT study 硫代硫酸盐离子在金（111）表面降解的DFT研究

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2025-07-14 DOI: 10.1016/j.ssc.2025.116072

Yasin Zia , Mehrdad Najafi Liavali , Kourosh Rahimi , Amir Bayat

{"title":"Thiosulfate ion degradation on gold (111) surface: A DFT study","authors":"Yasin Zia , Mehrdad Najafi Liavali , Kourosh Rahimi , Amir Bayat","doi":"10.1016/j.ssc.2025.116072","DOIUrl":"10.1016/j.ssc.2025.116072","url":null,"abstract":"<div><div>We have investigated the interaction of thiosulfate ion (S<sub>2</sub>O<sub>3</sub><sup>2−</sup>) on gold (111) surface as an alternative to cyanide in gold leaching by the density functional theory (DFT) method. The results show that this interaction leads to the degradation of thiosulfate ion on the gold (111) surface. Thiosulfate ion degradation happened through S-S bond breaking and led to formation of an adsorbed sulfur specie and a released SO<sub>3</sub> molecule (inter-bond angle of 120° and a bond length of 1.43 Å). Furthermore, the adsorbed sulfur specie was adsorbed at the hollow site on the gold (111) surface and bonded to three surface Au atoms (bond lengths: 2.33 Å). This interaction led to a rearrangement of the upper Au layer. To describe the nature of adsorbed sulfur specie, we have investigated the interaction of elemental sulfur (S<sup>0</sup>) and sulfide ion (S<sup>2−</sup>) on the gold (111) surface. The interaction of elemental sulfur and the gold (111) surface has a more similar geometry to sulfur specie product of thiosulfate ion degradation on the gold (111) surface. Also, by increasing the charge of system, the S-three Au atoms bond lengths has increased. It shows that by increasing the charge of system, the tendency of sulfur specie to the gold (111) surface has decreased. Based on the results, the rearrangement of the upper Au layer isn't because of the interaction of the thiosulfate ion. This phenomenon is because of the interaction of the sulfur specie as a thiosulfate degradation product (adsorbed sulfur) on the gold (111) surface.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"404 ","pages":"Article 116072"},"PeriodicalIF":2.1,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144655973","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}

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Modification in the structural and dielectric properties of ErCrO3 on Fe substitution 铁取代对ErCrO3结构和介电性能的影响

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2025-07-11 DOI: 10.1016/j.ssc.2025.116071

Pallabi Saha , Sikha Sarmah , P.K. Maji , Manoranjan Kar , Amar Dev , Tribedi Bora

{"title":"Modification in the structural and dielectric properties of ErCrO3 on Fe substitution","authors":"Pallabi Saha , Sikha Sarmah , P.K. Maji , Manoranjan Kar , Amar Dev , Tribedi Bora","doi":"10.1016/j.ssc.2025.116071","DOIUrl":"10.1016/j.ssc.2025.116071","url":null,"abstract":"<div><div>Polycrystalline samples of ErCr<sub>1-<em>x</em></sub>Fe<sub><em>x</em></sub>O<sub>3</sub> (0≤ <em>x</em> ≤ 0.30) have been synthesized in single-phase form using the sol-gel technique. XRD patterns analyzed via Rietveld refinement confirm the orthorhombic structure with unit cell volumes increasing from 216.989 Å<sup>3</sup> (<em>x</em> = 0.00) to 218.565 Å<sup>3</sup> (<em>x</em> = 0.30), attributed to the substitution of larger Fe<sup>3+</sup> ions (0.645 Å) for Cr<sup>3+</sup> ions (0.615 Å). Scanning Electron Microscopy (SEM) showed grain sizes ranging from 335 nm (<em>x</em> = 0.00) to 689 nm (<em>x</em> = 0.15). Energy Dispersive X-ray Spectroscopy (EDX) and Raman Spectroscopy corroborated the formation of the orthochromite structure. Impedance spectroscopy study revealed a discontinuity in the resistive behavior for all the samples showing the appearance of positive temperature coefficient of resistance (positive TCR) like transition in the temperature range of 393 K–443 K. Similar trend was also observed in the dielectric and the conductivity measurements around the same temperature range. All the ErCr<sub>1-<em>x</em></sub>Fe<sub><em>x</em></sub>O<sub>3</sub> compounds showed a colossal dielectric constant value (>10<sup>4</sup>) at room temperature, supporting the potential use of these compounds in electronic devices. The ac conductivity spectra followed Jonscher Power Law (JPL).</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"404 ","pages":"Article 116071"},"PeriodicalIF":2.1,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144632380","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}

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Computational insights into strain modulated mechanical, electrical and thermoelectric properties of CoTiP half-Heusler CoTiP半heusler材料应变调制力学、电学和热电性能的计算分析

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2025-07-11 DOI: 10.1016/j.ssc.2025.116070

Bouchrit Abir, Assiouan Kamal, Ziani Hanan, Ben Abdelouahab Fatima Zohra, El khamkhami Jamal, Achahbar Abdelfettah

引用次数: 0

5f electron induced spin transport by sandwich-type phthalocyanine 三明治型酞菁的5f电子诱导自旋输运

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2025-07-04 DOI: 10.1016/j.ssc.2025.116063

Lu Xu , Ding Wang , Xiaobo Yuan , Dongfa Lan , Yu Zhu , Xiaobo Li , Weiyu Xie

{"title":"5f electron induced spin transport by sandwich-type phthalocyanine","authors":"Lu Xu , Ding Wang , Xiaobo Yuan , Dongfa Lan , Yu Zhu , Xiaobo Li , Weiyu Xie","doi":"10.1016/j.ssc.2025.116063","DOIUrl":"10.1016/j.ssc.2025.116063","url":null,"abstract":"<div><div>The rapid development of integrated circuits highlights the critical need for novel spintronic device designs. Sandwich-type phthalocyanine molecules, with their unique electrical and magnetic properties, show great potential in spintronic applications. Actinide elements, due to the strong interaction of their 5f electrons, can induce various exotic spin transport effects. In this study, we employed the non-equilibrium Green's function method combined with density functional theory (NEGF-DFT) to investigate the spin transport properties of the actinide sandwich phthalocyanine molecule U(<em>Pc</em>)<sub>2</sub>. Electronic structure analysis indicates that the 5f electrons of uranium atom dominate its frontier orbital behavior. Transport property analyses reveal that when the bias voltage exceeds 0.4 V, the current increases significantly, due to an increase in the spin-up electron transmission peak, primarily contributed by 5f electrons. Our results underscore the dominant role of U-5f electrons in the spin transport of U(<em>Pc</em>)<sub>2</sub>. This study aims to provide beneficial assistance for the development of actinide phthalocyanine molecular spintronic devices.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"404 ","pages":"Article 116063"},"PeriodicalIF":2.1,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144556578","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}

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Improvement in electro-optical and dielectric properties of Silver nanoparticles dispersed in a nematic liquid crystal 向列相液晶中分散银纳米粒子电光和介电性能的改善

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2025-07-02 DOI: 10.1016/j.ssc.2025.116068

N. Navya, H.S. Sumantha, B.L. Suresha

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Electron transport through protein chains interfacing nanoribbon and nanotube leads 通过纳米带和纳米管引线界面的蛋白质链的电子传递

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2025-07-01 DOI: 10.1016/j.ssc.2025.116057

Hamze Mousavi

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The mechanical, electronic and contact properties of quasi-tetragonal C60H6 monolayer 准四方C60H6单层材料的力学、电子和接触性能

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2025-07-01 DOI: 10.1016/j.ssc.2025.116067

Yongjian Wu, Jie Sun, Jiancai Leng

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Unraveling the nonlinear optical behaviour of guanidinium (lS) – (+) – 10 – camphorsulfonate single crystal 揭示了胍(lS) -(+) - 10 -樟脑磺酸盐单晶的非线性光学行为

IF 2.1 4区物理与天体物理

Solid State Communications Pub Date : 2025-06-30 DOI: 10.1016/j.ssc.2025.116066

Kiran , N. Vijayan , Vinod , N. Sarkar , Kapil Kumar , B. Sridhar

{"title":"Unraveling the nonlinear optical behaviour of guanidinium (lS) – (+) – 10 – camphorsulfonate single crystal","authors":"Kiran , N. Vijayan , Vinod , N. Sarkar , Kapil Kumar , B. Sridhar","doi":"10.1016/j.ssc.2025.116066","DOIUrl":"10.1016/j.ssc.2025.116066","url":null,"abstract":"<div><div>Guanidine based single crystals have gained attention in the optoelectronic sector due to their excellent nonlinear behaviour towards high intense laser. Their hydrogen-bonded networks provide a strong nonlinear response which is significant for the crystals used in photonics. In this work, we report the synthesis and growth of guanidinium (lS) - (+) - 10 - camphorsulfonate (GCS) single crystals via slow evaporation solution method. Our experimental analysis encompassed Fourier transform infrared (FTIR) spectroscopy to understand the existing functional groups within the compound. The dominant interactions observed in Hirshfeld surface are O···H and H···H, contributing 40.9 % and 50.5 %, respectively. Besides, it is demonstrated that the GCS crystal has unique optical characteristics, including a direct bandgap of 3.86 eV and a wide optical transparency of 40 %. Moreover, GCS exhibits a large thermal stability up to a temperature of 320 °C which makes it suitable for device usage at higher temperatures. Additionally, determining the third-order nonlinearity of the entitled crystal by computing the nonlinear absorption coefficient, <em>β</em> and nonlinear index of refraction, <em>n</em><sub>2</sub> sheds light on the nonlinear characteristics of the crystal owing to its applicability as an optical limiter. Overall, the research opens up new possibilities for the synthesis and design of hydrogen-bonded guanidinium salts for the advancement of NLO applications.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"404 ","pages":"Article 116066"},"PeriodicalIF":2.1,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144536083","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