Optical and electrical properties of ZnO nanoparticle thin films deposited on quartz by sparking process

“…The ZN films were obtained by sparking the zinc wire (0.38 mm of diameter, 99.97% of purity) [17] on the FTO glass (8 Ω/cm 2 ) at a constant DC power supply of 4.5 kV. The distance between zinc wire and substrate was set to be about 1 mm.…”

Section: Preparation Of Zno Nanoparticle Films By Sparking Methodsmentioning

confidence: 99%

“…The experiment was repeatedly done at 10, 25, 50 and 100 cycles in ambient air under atmospheric pressure. Then, as-deposited films were annealed at 400°C for 6 h in order to completely transform Zn particles to ZnO particles [17]. The surface morphology and film thickness were characterized by field emission scanning electron microscopy (FE-SEM, model JEOL JSM-6335F) operating at a voltage of 15.0 kV and the crystal structure was investigated by X-ray diffractometry (XRD, model Rigaku Miniflex II, X-ray source is Cu K-alpha) with the Bragg-Brentano geometry.…”

Section: Preparation Of Zno Nanoparticle Films By Sparking Methodsmentioning

confidence: 99%

Sparking deposited ZnO nanoparticles as double-layered photoelectrode in ZnO dye-sensitized solar cell

Hongsith

Wongratanaphisan

et al. 2013

Thin Solid Films

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“…Not only the deposition geometry but also the tip shapes are very important for depositing NPs in this method. Kumpika et al have demonstrated how tip shapes and high voltages affect the NP's structure, as well as their size and size distribution [8].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Optical Properties of Co and Zn-Based Metal Oxide Nanoparticle Thin Films

et al. 2017

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ZnO, Co doped ZnO (ZnO:Co) and CoO thin films were deposited on glass substrates by using the spark discharge technique with Zn-Zn, Zn-Co and Co-Co metal electrodes (tips). The structural and optical properties of the films were characterized by X-ray diffraction, scanning electron microscopy measurements and UV-Vis spectrometry. Cubic phase reflection of CoO (200) was observed in the samples containing Co. The size of nanoparticles had varied between 38 nm and 200 nm in ZnO thin films. When Co electrode was used, spherical structure had deteriorated and clusters of particles, with smaller radii, were observed. In addition, when Co-Co electrode pairs were used, various cavities with different sizes were formed. Especially, it was observed that the optical transmittance had generally increased with the decreasing spark (charge) voltage, while increasing with the number of sparks. The Co-containing samples were green in color and it was observed that the loss of transmission appears in a specific region in the Co-doped ZnO thin films due to characteristic d-d transition of Co 2+ ions. The thickness of the films had decreased with the increasing number of sparks. In addition, the band gap energy, Eg, evaluated by UV-Vis spectroscopy measurements has been shifted to higher wavelengths (red shift) for the ZnO:Co thin films.

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Optical and electrical properties of ZnO nanoparticle thin films deposited on quartz by sparking process

Cited by 33 publications

References 28 publications

Synthesis, growth mechanism and optical characterization of zinc nitride hollow structures

Synthesis, growth mechanism and optical characterization of zinc nitride hollow structures

Sparking deposited ZnO nanoparticles as double-layered photoelectrode in ZnO dye-sensitized solar cell

Synthesis and Optical Properties of Co and Zn-Based Metal Oxide Nanoparticle Thin Films

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