Article
Chemistry, Inorganic & Nuclear
J. J. Rushmittha, S. Radhika, C. M. Padma
Summary: A new nanocomposite of zirconium oxide supported copper ferrite (ZCFO) at different concentrations was synthesized using the co-precipitation technique. The XRD technique revealed a grain size of 60-70 nm for the sample. VSM analysis confirmed the ferromagnetic behavior of the NCs with a multi-domain nature. CV analysis showed that the synthesized sample exhibited a maximum specific capacitance of 790.87 F/g at a scan rate of 10 mV/s for ZCFO-1. GCD analysis demonstrated faradic behavior with prolonged discharge time even at higher current density, and cyclic stability analysis revealed a capacitive retention of 90.4% for ZCFO-1 over 2000 charge-discharge cycles.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Energy & Fuels
S. Ezhil Arasi, R. Ranjithkumar, P. Devendran, M. Krishnakumar, A. Arivarasan
Summary: The study reported the supercapacitive behavior of chemically synthesized cobalt vanadate nanostructures. Crystallographic information and optical response were investigated through various analytical techniques. The prepared Co3V2O8 showed specific capacitance value of about 790 F/g at 1 A/g current density and 90.1% capacitive retention after 10000 cycles, indicating its potential as an electrode material for future energy storage devices.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Physical
D. P. Mali, R. T. Patil, A. S. Patil, V. J. Fulari
Summary: In this study, NiO nanoflakes were successfully synthesized using the hydrothermal method, and it was found that increasing urea concentration in the Ni precursor caused morphological distortion of the nanoflakes and affected their electrochemical properties.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Chemistry, Inorganic & Nuclear
M. Vidhya, T. M. Selvakumari, R. Marnadu, I. M. Ashraf, Mohd. Shkir
Summary: This work describes the successful formation of two-dimensional MoS2 nanoflakes using temperature varying hydrothermal method and their application as effective electrode material for high performance supercapacitors. The electrode material prepared at 160 degrees Celsius exhibits the best supercapacitive performances.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
G. Maheshwaran, C. Selvi, R. Kaliammal, M. Ramesh Prabhu, M. Krishna Kumar, S. Sudhahar
Summary: The Cr2O3-NiO NC synthesized by hydrothermal method showed superior electrochemical performance with higher specific capacitance and lower resistance. The electrode material exhibited good stability and reversibility, maintaining 87.7% capacitance retention even after 2000 cycles.
Article
Energy & Fuels
Nazish Parveen, Sajid Ali Ansari, Batool Taher Al-Abawi, Mohammad Omaish Ansari
Summary: Hierarchical three dimensional nanoflakes (H3DN) of nickel oxide (NiO) were successfully designed and grown on carbon microfibers (CMF) as a binder free electrode material for supercapacitor applications via a facile hydrothermal method, exhibiting superior electrochemical performance and cyclic stability.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Materials Science, Multidisciplinary
Jiongliang Yuan, Wei Zeng
Summary: The NiCo2S4/nickel foam composite electrodes were prepared by cyclic voltammetric deposition of NiCo2S4 arrays on nickel foam, and the performance of the composite electrodes as supercapacitors was investigated. The electrode with 5 deposition cycles exhibited the highest supercapacitor performance, with a specific capacitance of 2244.8 F/g at a current density of 1 A/g; it also showed a capacitance retention rate of 66% and a Coulombic efficiency of 99% after 1000 charge/discharge cycles.
Article
Chemistry, Analytical
S. S. Pradeepa, K. Sutharthani, R. Subadevi, M. Sivakumar
Summary: Materials composed of iron oxide-chromium oxide (Fe2O3-Cr2O3) nanocomposites with multiple redox-active sites and superior electrical conductivity are synthesized for efficient energy storage. The Fe2O3-Cr2O3 nanocomposite electrode exhibits a high specific capacity of 544.2 Cg-1 at a scan rate of 10 mV/s, along with low solution resistance (0.75 Ω) and charge transfer resistance (0.06 Ω) as evaluated by Electrochemical Impedance Spectroscopy. Prolonged discharge time and a maximum specific capacity of 814 Cg-1 at a current density of 1 Ag-1 are achieved for the Fe2O3-Cr2O3 nanocomposite, with a capacitive retention of 79.2% after 5000 consecutive charge-discharge cycles. An asymmetric supercapacitor device, using Fe2O3-Cr2O3 as the cathode and activated carbon (AC) as the anode, delivers a high energy density of 77.17 Wh kg-1 corresponding to a power density of 650 W kg-1.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Maheen Rahim, Sobia Yaseen, Rizwan Ullah
Summary: This study focuses on the fabrication of polyaniline (PANI) and PANI/bismuth-doped zinc oxide (PANI/Bi-ZnO) as electrode materials for high-efficiency supercapacitors. The synthesized materials exhibit improved structural, thermal, and morphological properties, making them suitable for supercapacitor electrodes. The PANI/Bi-ZnO composite shows higher charge storage capacity, energy density, and power density values compared to pure PANI.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Materials Science, Multidisciplinary
Aleksandra S. Popovic, Milica M. Gvozdenovic, Ana Jankovic, Branimir Z. Jugovic, Branimir N. Grgur
Summary: Electrochemical Energy Storage (EES) technologies are crucial for reducing the use of fossil fuels and promoting environmental consciousness. Researchers are searching for efficient electrode materials to advance EES systems. However, newcomers to the field often lack familiarity with the core concepts and procedures. This study addresses this gap by providing a step-by-step procedure for analyzing the electrochemical properties of polypyrrole, a widely used conducting polymer with potential as an electrode material.
Article
Engineering, Electrical & Electronic
Ruby Garg, Alpana Agarwal, Mohit Agarwal
Summary: This paper focuses on the synthesis of low-cost one-dimensional copper sulfide (Cu2S) electrodes for high-performance supercapacitors, showcasing the highest capacitance in Cu2S with a "1:1" ratio on a glass substrate. Additionally, the successful fabrication of supercapacitors on a flexible polypropylene (PP) substrate is discussed for the first time.
JOURNAL OF ELECTRONIC MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Melih Besir Arvas, Hurmus Gursu, Metin Gencten, Yucel Sahin
Summary: In this study, S, N co-doped graphene-based electrodes were synthesized using Yucel's method. The prepared electrodes were characterized using spectroscopic, microscopic and electrochemical methods. The supercapacitor performances of the electrodes were evaluated through cyclic charge-discharge tests in specific electrolyte solutions, with the areal capacitance values varying with current density.
Article
Chemistry, Analytical
Congmei Yue, Boyang Hu, Wenjing Huang, Aifeng Liu, Zengcai Guo, Jingbo Mu, Xiaoliang Zhang, Xiaoyan Liu, Hongwei Che
Summary: In this work, PPy@CoP core-shell heterogeneous nanostructures are grown directly on Ni foam using a two-step electrochemical synthesis method, showing superior electrochemical and cycling performance for high-performance supercapacitor applications. The rational design of heterostructures based on PPy and metal phosphides offers new insights for the development of high-performance SCs.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Kannagi Krishnasamy, K. K. Purushothaman
Summary: Novel MnS @ Mn3O4/C nanoflakes are synthesized using natural polysaccharide and investigated for their structural, morphological and electrochemical features. The core-shell nanostructure exhibits high specific capacity and cyclic stability at a high current density, making it suitable for high performance supercapacitor devices.
MATERIALS TECHNOLOGY
(2022)
Article
Energy & Fuels
Sheharyar Pervez, Muhammad Zahir Iqbal
Summary: This study explores the energy storage profile of a strontium sulfide electrode and analyzes its capacitive and diffusive contributions using a model, while examining the correlation between regression parameters. It aims to uncover electrochemical features that are obscured by current methods of presenting data in cyclic voltammetry experiments.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Engineering, Electrical & Electronic
Nishi Mehak, Bindu Rani, Aadil Fayaz Wani, Shakeel Ahmad Khandy, Ajay Singh Verma, Atif Mossad Ali, M. A. Sayed, Shobhna Dhiman, Kulwinder Kaur
Summary: In this study, the electronic, structural, and thermoelectric properties of newly designed layered rare-earth metal germanide halides were investigated. The materials showed promising thermoelectric performance, making them suitable candidates for energy harvesting in thermoelectric applications.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Devidas I. Halge, Vijaykiran N. Narwade, Nabeel M. S. Kaawash, Pooja M. Khanzode, Sohel J. Shaikh, Jagdish W. Dadge, Prashant S. Alegaonkar, Rajeshkumar S. Hyam, Kashinath A. Bogle
Summary: This study presents the design and fabrication of a high-performance blue light photodetector using an n-type cadmium sulfide (CdS) thin film and a p-type polyaniline (PANI). The photodetector demonstrates exceptional performance characteristics, including high responsivity, detectivity, and sensitivity, along with rapid response time and rectification behavior. The research represents a significant advancement in the field of high-performance photodetectors.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Da Hu, Jiabin Lu, Qiusheng Yan, Yingrong Luo, Ziyuan Luo
Summary: This study introduces a chemical mechanical polishing technique based on metal electrochemical corrosion for single-crystal SiC to address the environmental pollution caused by the polishing solution in chemical mechanical polishing. Wear experiments were conducted to investigate the wear properties of SiC C-surface under different grinding ball materials and solutions. The proposed mechanism of material removal in single-crystal SiC via metal electrochemical corrosion was discussed.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Lifang Mei, Long Lin, Dongbing Yan, Yu Liang, Yu Wu, Shuixuan Chen
Summary: This paper investigates the removal of CuO particles from silicon wafer surfaces using a picosecond laser. Numerical calculations and experimental research were conducted, and a thermal-stress coupled finite element model was established. The results show that as the laser energy density increases, the removal rate of CuO particles initially increases and then decreases, while the roughness of the silicon substrate decreases and then increases.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Michihiro Yamada, Shuhei Kusumoto, Atsuya Yamada, Kentarou Sawano, Kohei Hamaya
Summary: In this study, we demonstrated the low-temperature growth of a Ge layer on a Co-based Heusler alloy via Sn doping, which improved the magnetic properties and spin signal.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Xiang-Long Wei, Bao-Feng Shan, Zong-Yan Zhao
Summary: This study synthesized and characterized a CuAlO2/CuGaO2 heterostructure and evaluated its photocatalytic performance. The heterostructure exhibited superior performance compared to individual CuAlO2 and CuGaO2 photocatalysts, with increased carrier concentration, enhanced redox capabilities, superior electrochemical stability, and reduced interfacial resistance. Photocatalytic experiments demonstrated the remarkable oxidation potential and notable reduction activity of the heterostructure, outperforming CuAlO2 and CuGaO2 in degradation rates and hydrogen production rates, respectively. These findings highlight the superior performance and broad applicability of the CuAlO2/CuGaO2 heterostructure in various photocatalytic reactions.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Micka Bah, Daniel Alquier, Marie Lesecq, Nicolas Defrance, Damien Valente, Thi Huong Ngo, Eric Frayssinet, Marc Portail, Jean-Claude De Jaeger, Yvon Cordier
Summary: This study investigates the AlN nucleation layer issue in GaN high frequency telecommunication and power switching systems fabricated after heteroepitaxy on Silicon or Silicon Carbide. It is shown that using 3C-SiC as an intermediate layer can significantly decrease RF propagation losses. Measurements and analyses demonstrate that dopant diffusion into the 3C-SiC pseudo-substrate is confined beneath the interface, and a slightly conductive zone is present beneath the AlN/3C-SiC interface, explaining the low propagation losses obtained for the devices. This work highlights the importance and efficiency of the 3C-SiC intermediate layer as a pseudo-substrate.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Shuang Wang, Lijun Wu, Zhiqing Wang, Ziyue Qian
Summary: The geometric structure and electrical properties of zigzag and armchair DWSiNT perfect tubes with different Stone-Wales defects were simulated using the SCC-DFTB method. It was found that the atomic arrangement, stability, energy gap, and charge distribution strongly depend on the type of tube. The effects of strong and weak electric fields on the tubes were also investigated, showing different impact on stability and energy gap. These findings have implications for future experimental studies.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Nanda Kumar Reddy Nallabala, Sunil Singh Kushvaha, Sambasivam Sangaraju, Venkata Krishnaiah Kummara
Summary: This study focuses on the preparation and performance of MIS-type high-k dielectric oxide-based UV photodetectors. The researchers found that the Au/Ta2O5/GaN devices prepared on Ta2O5/GaN heterojunction with post-annealing exhibited improved photoresponsivity, EQE, and rise/fall times. This improvement is attributed to the optimized band configuration of the Ta2O5/GaN heterostructure and the effect of post-annealing on photogenerated charge carriers.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Jean-Francois Michaud, Marc Portail, Daniel Alquier, Dominique Certon, Isabelle Dufour
Summary: This paper reviews the use of MEMS devices without sensitive layers in gas detection applications. These devices can measure a physical property of the gas to determine its concentration, and have the advantages of generality and high detection limits.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Kanyu Yang, Chaojie Shi, Ruizhao Tian, Haoyue Deng, Jie He, Yangyang Qi, Zhengchun Yang, Jinshi Zhao, Zhen Fan, Jun Liu
Summary: This study investigates the electrical and synaptic properties of Ag/TiO2 nanorod/FTO-based RRAM devices, focusing on the impact of different seed layer thicknesses on nanorod thickness and RRAM performance. The devices show remarkable achievements in terms of endurance, self-compliance, and resistance switching ratio. The switching mechanism is attributed to space-charge-limited conduction resulting from electron trapping in oxygen vacancy traps. The devices also maintain stable synaptic properties even after undergoing multiple cycles of long-term potentiation and depression.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Karthickraj Muthuramalingam, Wei-Chih Wang
Summary: This study presents a non-destructive approach using terahertz time-domain spectroscopy (THz-TDS) to estimate the electrical properties of semi-insulating compound semiconductors. The study successfully measures the resistivity and carrier concentration of semi-insulating Silicon Carbide (SiC) and Indium Phosphide (InP) wafers using THz-TDS in transmission mode. The simplified Drude model and the Nelder-Mead algorithm are employed to estimate the electrical properties, and the results are in accordance with the manufacturer specifications. The feasibility of non-destructive mapping of the electrical properties is demonstrated, offering a promising tomographic inspection approach for online monitoring.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Pengfei Wei, Rui Tong, Xiaofeng Liu, Yao Wei, Yongan Zhang, Xu Liu, Jian Dai, Haipeng Yin, Dongming Liu
Summary: This study investigates the influence of SiNx and SiOxNy as rear-side passivation films on the performance of PERC+ cells. SiNx film is found to have better passivation performance and resistance to aluminum paste erosion, while SiOxNy film exhibits better optical performance. By designing multi-layer SiNx/SiOxNy/SiNx stacks, the cells' efficiency and bifaciality are significantly improved.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Shuangting Ruan, Xiaolan Li, Wen Cui, Zhihui Zhang, Zhihui Xu, Huanqi Cao, Shougen Yin, Shishuai Sun
Summary: Integrating photosensitive electrode materials can effectively improve the low temperature tolerance and enhance energy density and power density. The surface morphology reconstruction technique can increase the active surface area and improve electrolyte contact, leading to higher specific capacity. Additionally, the electrodes demonstrate excellent photoelectric and photothermal conversion abilities, allowing the supercapacitor to maintain high energy density even at low temperatures.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Review
Engineering, Electrical & Electronic
Ashmalina Rahman, James Robert Jennings, Mohammad Mansoob Khan
Summary: This review provides a comprehensive overview of the synthesis and applications of nanostructured CuInS2 in photocatalytic applications. Various strategies, including the introduction of dopants, surface decoration, and heterojunction formation, have been summarized to improve the photocatalytic performance of CuInS2. However, scientific challenges such as the high carrier recombination rate limit the broad application of CuInS2.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)