Investigation on the optical transmission in UV range of sol-gel spin coated zinc oxide nanofilms deposited on glass

Tab, A.; Abderrahmane, Abdelkader; Bakha, Y.; Hamzaoui, S.; Zerdali, M.

doi:10.1016/j.ijleo.2019.163073

Cited by 6 publications

(2 citation statements)

References 13 publications

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“…The concentration of zinc oxide within the glass composition significantly affects the characteristics of light absorption and transmission (Tab, Abderrahmane, Bakha, Hamzaoui, & Zerdali, 2019). Reduced amounts of ZnO in the glass tend to enhance clarity across a broader range of wavelengths.…”

Section: Resultsmentioning

confidence: 99%

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%

Efficient Synthesis of Zno as an Electrode of Piezoelectric Nanogenerators

Salh,

Ibrahem

2024

SJUOZ

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“…Due to high band gap, usual emission of ZnO lies in the UV region. However, visible photoluminescence is also exhibited by nanostructured ZnO owing to several defect states like zinc and oxygen vacancies, anti-sites, and interstitials [5][6][7][8]. There are various reports of red, green and blue photoluminescence from ZnO synthesized by chemical method by many researchers and can be found elsewhere in [9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Peak profile analysis, electrical, dielectric behaviour and defect mediated yellow photoluminescence of zinc oxide nanostructures

Samanta¹,

Rana²,

Kar³

2022

Phys. Scr.

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A simple chemical method has been used to synthesize pure and crystalline ZnO nanoparticles. XRD study revealed hexagonal unit-cell with crystallite size 18.32 nm. Non-Debye type relaxation mechanism leads to an additional constant-phase-contribution to the equivalent parallel RC-network. The grain-boundary effect to the conductivity is very large. The dc conductivity was calculated to be 4.9×10-8 (Ω-cm)-1. The high loss-tangent at lower frequency is contributed by the large grain boundary effect of the material. The material is highly transparent in the visible window of wavelength with wide and direct band gap of 3.53 eV. The highly intense photoluminescence at 583 nm is attributed to oxygen related defect (interstitials or vacancy) .

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