XRD and FTIR studies of zinc doped nickel oxide compounds

Parwani, Suraj; Dubey, Paras; Dixit, R. C.; Kaurav, Netram

doi:10.1063/1.5098646

Cited by 3 publications

(3 citation statements)

References 16 publications

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“…These images uncover the presence of creases, folds, or strata misalignments, which are effectively concealed within the film after the growth stage. (Parwani, Dubey, Dixit, & Kaurav, 2019). These characteristic peaks are typically detected at specific 2θ angles, offering valuable insights into the structural attributes of the film.…”

Section: Resultsmentioning

confidence: 99%

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Efficient Synthesis of Zno as an Electrode of Piezoelectric Nanogenerators

Salh,

Ibrahem

2024

SJUOZ

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Piezoelectric nanogenerators (NGs) hold immense promise as self-powered devices for harvesting mechanical energy from the environment. This study introduces an efficient and scalable synthesis method for zinc oxide (ZnO) nanorods, a pivotal material in piezoelectric nanogenerators (NGs), with several key results. A Chemical Bath Deposition technique is employed, optimizing parameters such as growth time, temperature, and precursor concentrations to achieve well-aligned and high-quality ZnO nanorods. The structural and morphological characteristics of the synthesized nanorods are systematically investigated using advanced characterization techniques. The synthesized ZnO nanorods exhibit an average length of 400nm, demonstrating their slender shape. Furthermore, the study determines an energy gap value of 3.5 eV for multilayer zinc oxide thin films, indicating the transition from the valence band to the conduction band. Notably, thermal annealing at 500°C leads to a substantial increase in average output voltage, reaching 1.95 V, a fourfold improvement compared to as-deposited nanopowders. These findings emphasize the efficiency and potential of the proposed synthesis method and underscore its practical applications in enhancing energy harvesting capabilities for sustainable power generation from mechanical sources in piezoelectric NGs.

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Section: Resultsmentioning

confidence: 99%

“…Parwani et al synthesized Zn-doped ZnO samples and analyzed their structure using XRD. The changes observed in crystallinity and particle size were due to Zn dopin(Parwani, Dubey, Dixit, & Kaurav, 2019). These characteristic peaks are typically detected at specific 2θ angles, offering valuable insights into the structural attributes of the film.…”

mentioning

confidence: 99%

Efficient Synthesis of Zno as an Electrode of Piezoelectric Nanogenerators

Salh,

Ibrahem

2024

SJUOZ

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“…A few papers have concentrated on the synthesis and deposition of zinc-doped NiO thin layers. Additionally, doping with Zn ion can modify the band structure of NiO to affect its optoelectronic performance [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Influence of Copper and Zinc Doping on Optical Properties of Nano Nickel Oxide Films Deposited by Sol-Gel Method

Kadhm¹,

Abbas²

2022

Nano BioMed ENG

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In this study, nano films of pure NiO and films doped with zinc and copper concertation (1%, 3%, 5%) and their mixture for 5% under 100 nm thickness were generated on glass bases using the solgel process at a temperature of 298 K. The Cu, Zn-doped NiO and nano NiO optical characteristics were examined throughout a wavelength range of 300 to 800 nm, with high transmittance values of 94% in the Vis-NIR. Transmittance films after doped copper and zinc have dropped to 5% (91% and 92%), respectively. The index of refraction, coefficient of extinction, optical conductivity and the dielctric constants (real and imaginary) were also studied. The results show that the optical conductivity of NiO‫׃‬Zn and NiO‫׃‬Cu films increased at the room temperature with increasing the dopant concentrations.

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Synthesis, Characterization, Optical and Dielectric Properties of NiO and Zn‐Doped NiO Nanostructures: Toward Advanced Applications

Ali,

Ahmad,

Usman

et al. 2024

Advances in Condensed Matter Physics

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In this current study, hydrothermal method was employed to synthesize distinct nanostructures: pure nickel oxide (NiO), Zn‐doped NiO, and NiO/ZnO composites. X‐ray diffraction (XRD) results confirmed NiO’s cubic structure, with sizes of 17.01 nm for pure NiO and 30.87 nm for composites. Scanning electron microscope (SEM) images revealed flowerlike morphologies, energy‐dispersive X‐ray spectroscopy (EDX) authenticated the elemental composition without any impurities. Ultraviolet–visible (UV‐Vis) spectroscopy demonstrated heightened absorption in doped and nanocomposite samples. The bandgap energy calculated using Tauc’s plot reduced from 2.95 to 2.55 eV with increase in zinc (Zn) content. In Fourier‐transform infrared (FTIR) characterization, the Ni–O stretching vibration appeared at 666.7 cm−1 in doped samples, while Zn–O stretching was evident at 586.03 cm−1. Photoluminescence analysis unveiled a strong peak at 470 nm (near band edge) and another at 665 nm (indicative of defects), exhibiting intensified signals in doped and nanocomposite samples due to a higher defect density. The dielectric constant showed increased values at low frequencies attributed to real and space charge polarization. Notably, the conductivity of Zn‐doped and nanocomposite samples displayed an upward trend with frequency due to a higher defect density. This study unveils insights into the intricate optical and electrical properties of these novel nanostructures, showcasing their potential in advanced energy storage applications.

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XRD and FTIR studies of zinc doped nickel oxide compounds

Cited by 3 publications

References 16 publications

Efficient Synthesis of Zno as an Electrode of Piezoelectric Nanogenerators

Efficient Synthesis of Zno as an Electrode of Piezoelectric Nanogenerators

Influence of Copper and Zinc Doping on Optical Properties of Nano Nickel Oxide Films Deposited by Sol-Gel Method

Synthesis, Characterization, Optical and Dielectric Properties of NiO and Zn‐Doped NiO Nanostructures: Toward Advanced Applications

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