Reduced impedance in dual substituted strontium cobaltite nanoparticles for renewable energy applications

Akhtar, Tanveer; Anis-ur-Rehman, M.

doi:10.1088/2053-1591/ab684d

Cited by 2 publications

(3 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Perovskite system SrCoO3-δ has several applications such as oxygen separation membranes, gas sensors, electrodes of solid oxide fuel cell, and electrocatalysts [1][2][3]. SrCoO3-δ is an interesting material because its structure and magnetic properties can be controlled through the oxygen content.…”

Section: Introductionmentioning

confidence: 99%

Crystal Structure and Magnetic Properties of SrCoO<sub>3-δ</sub> with Oxygen Deficiency (δ ≈ 0.23)

Qori’

Akbar

Nugraha

et al. 2023

MSF

View full text Add to dashboard Cite

We report a synthesis route to form a stable powder of SrCoO3-δ which show ferromagnetic component at room temperature. The powder was obtained from brownmillerite SrCoO2.5 using chemical oxidation. The x-ray diffraction pattern of the oxidized powder was best fitted using a tetragonal structure of I4/mmm with lattice constants of a = b = 10.87 Å, c = 7.664 Å and its oxygen content of 2.77 (δ 0.23) was measure by iodometric titration. In spite of a single-phase structure, the elemental compositions of oxidized powder characterized by the EDX measurement showed the presence of oxidation elements that might contribute to magnetic impurities at low temperatures. The powder nevertheless can be used for magnetic applications at room temperature.

show abstract

Section: Introductionmentioning

confidence: 99%

Crystal Structure and Magnetic Properties of SrCoO<sub>3-δ</sub> with Oxygen Deficiency (δ ≈ 0.23)

Qori’

Akbar

Nugraha

et al. 2023

MSF

View full text Add to dashboard Cite

show abstract

“…When a current flows through positively and negatively, the electrode ends up not polished then functions as a capacitor with unidirectional resistance. Impedance value is a combination of 2 components, namely the real (Z ' ), and imaginary components (Z '' ) [15]. Curve I represents the process that applies between interface of electrode or electrolyte at low frequencies (< 10 kHz), while curve II represents the process that applies to grain boundaries at mid frequencies (1 -100 kHz).…”

Section: Introductionmentioning

confidence: 99%

“…Curve III, which applies to frequencies (> 10 kHz), is the curve that represents sample solid process. An equivalent circuit that can describe perfect impedance spectrum for the 3 processes above is shown in Figure 2 [15].…”

Section: Introductionmentioning

confidence: 99%

Characteristic Making of Ba0.4Sr0.6TiO3 Thin Film Nanoparticles

et al. 2022

View full text Add to dashboard Cite

Presently, the research on thin films is essentially useful in the world of science and technology. Therefore, this study aims to explore Barium Strontium Titanate (BST) as the basis in the making of dynamic random access memory (DRAM). This DRAM technology produces small cells that have faster operations, lower energy, longer data storage period, and are found to havemade up of Barium Strontium Titanate nanoparticles (Ba0.4Sr0.6TiO3; BST). BST applications in the form of capacitors can be used as gas sensors, temperature sensors, microwave phase shifters, tunable filters, oscillators, infrared sensors, etc.The main component of BST was showed by the sol-gel method, and the device structure constituted of Si/SiO2/RuO2/TiO2 /Ba0.4Sr0.6TiO3/Al. All the samples were annealed at 400, 450, 500, 550, 600, 650 and 700 ℃ for 60 min. The sample was annealed to see the crystalline structure of the sample.The sol gel method was chosen in the process of making thin films of Ba0.4Sr0.6TiO3 (BST) because this method was easier and cheaper than other techniques. The thin film was characterized by optical and electrical properties. The results showed that a rise in the annealing temperature increased the crystalline, grain size, thickness and surface roughness of the sample. The characterization was carried out on the device structure (Si/SiO2/RuO2/TiO2/Ba0.4Sr0.6TiO3/Al) in order to examine the optical and electrical properties, including the current density and the dielectric features. At the annealing temperature of 700 ℃, the device showed the best value, with the absorption peak at the wavelength of 688 nm. And also, with the dielectric constant (εr) of 2,500, capacitance (C) of 22.10 nF, dense alternating current (ρau) of 2.54×104 Ω.m, conductance (σau) of 1.20×10-2 1/Ω.m, and current density of 9.85×10 -5 A.cm-2 at 0.5 V. The results of characterization of this capacitor are very good to be used as an infrared sensor. HIGHLIGHTS The explore Barium Strontium Titanate (BST) as the basis in the making of dynamic random access memory (DRAM) BST applications in the form of capacitors can be used as gas sensors, temperature sensors, microwave phase shifters, tunable filters, oscillators, infrared sensors, etc. The results showed that a rise in the annealing temperature increased the crystalline, grain size, thickness and surface roughness of the sample GRAPHICAL ABSTRACT

show abstract

Reduced impedance in dual substituted strontium cobaltite nanoparticles for renewable energy applications

Cited by 2 publications

References 52 publications

Crystal Structure and Magnetic Properties of SrCoO<sub>3-δ</sub> with Oxygen Deficiency (δ ≈ 0.23)

Crystal Structure and Magnetic Properties of SrCoO<sub>3-δ</sub> with Oxygen Deficiency (δ ≈ 0.23)

Characteristic Making of Ba0.4Sr0.6TiO3 Thin Film Nanoparticles

Contact Info

Product

Resources

About