Electrodeposition of ZnO thin films on conducting flexible substrates

Oliveira, Filipe F.; Proença, Mariana P.; Araújo, João P.; Ventura, J.

doi:10.1007/s10853-016-9850-6

Cited by 24 publications

(10 citation statements)

References 38 publications

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“…Many techniques have been used for depositing high quality ZnO thin films. Some of them are electrodeposition technique [5,6], electrospinning technique [7], pulsed laser deposition [8], RF sputtering [9], chemical solution deposition [10,11], electron beam evaporation [12,13], the sol -gel method [14], spray pyrolysis [15,16], ultrasonic spray pyrolysis technique [3].…”

Section: Introductionmentioning

confidence: 99%

“…Cathodic electrodeposition technique has been recognized as the effective method for the production of metal oxide thin films, particularly ZnO thin films due to its simplicity, low temperature process, high deposition rate, low cost technique and suitability for large area substrate. This technique used a very low cathode voltage or current to produce the ZnO thin film on any conductive substrate such as a transparent conducting oxide [5] or any other metal plate [17]. In this deposition technique, the film thickness, electrical structural, morphology and optical properties can be controlled by the various deposition parameters such as: current density, applied potential, deposition time and the concentration of the electrolytic bath.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Dip Time on Electrodeposited Zinc Oxide Nanofilm

Okoli¹

2018

AJMSP

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Nanofilms of Zinc Oxide (ZnO) were fabricated from solutions of zinc tetraoxosulphate heptahydrate, citric acid, and sodium hydroxide onto a Fluorine Tin Oxide (FTO) conductive glass by elecrodeposition process. Time as bath parameter was varied. Three samples with time interval of 30 seconds, 60 seconds and 90 seconds were fabricated. Absorbance of the films was determined with the help of spectrophotometer. Other optical properties of the nanofilms were calculated using the appropriate equations from the literature. The deposited nanofilms have high absorbance in UV region and low absorbance in VIS -NIR region. Transmittance of the nanofilms is low in UV region and high in VIS -NIR region. Reflectance of the films is low throughout the UV -VIS -NIR regions. The optimal optical thickness of 270 nm was obtained at 90 seconds. The bandgap of the nanofilms obtained is between 3.30 to 3.60 eV. Average crystallite size of 43.04 nm was obtained for the deposited ZnO thin film.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Dip Time on Electrodeposited Zinc Oxide Nanofilm

Okoli¹

2018

AJMSP

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“…ZnO has a good mechanical-to-electrical conversion, as it presents a non-centrosymmetric hexagonal wurtzite crystal structure. ZnO can be deposited as thin films (2D), or grown in various nanostructures, such as nanowires, nanotubes or nanorings [ 21 , 22 ], using several techniques, such as electrochemical deposition [ 23 ], hydrothermal processes [ 24 ], ion beam deposition [ 25 ], electrodeposition [ 26 ], or sol-gel [ 27 ]. Additionally, contrary to lead zirconate titanate (PZT) and lead-based materials, ZnO is a bio-compatible material.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Shape on the Output Potential of ZnO Nanostructures: Sensitivity to Parallel versus Perpendicular Forces

et al. 2018

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With the consistent shrinking of devices, micro-systems are, nowadays, widely used in areas such as biomedics, electronics, automobiles, and measurement devices. As devices shrunk, so too did their energy consumptions, opening the way for the use of nanogenerators (NGs) as power sources. In particular, to harvest energy from an object’s motion (mechanical vibrations, torsional forces, or pressure), present NGs are mainly composed of piezoelectric materials in which, upon an applied compressive or strain force, an electrical field is produced that can be used to power a device. The focus of this work is to simulate the piezoelectric effect in different ZnO nanostructures to optimize the output potential generated by a nanodevice. In these simulations, cylindrical nanowires, nanomushrooms, and nanotrees were created, and the influence of the nanostructures’ shape on the output potential was studied as a function of applied parallel and perpendicular forces. The obtained results demonstrated that the output potential is linearly proportional to the applied force and that perpendicular forces are more efficient in all structures. However, nanotrees were found to have an increased sensitivity to parallel applied forces, which resulted in a large enhancement of the output efficiency. These results could then open a new path to increase the efficiency of piezoelectric nanogenerators.

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“…Dependiendo del tipo de técnica de síntesis que se utilice se pueden obtener diferentes morfologías del ZnO como nanohojas, nanocables, nanopartículas, nanoanillos y nanotubos (Oliveira, Proenca, Araújo, & Ventura, 2016 En aplicaciones fotovoltaicas, el ZnO puede actuar como "ventana" y transportador de electrones (X. Jiang et al, 2015;Lahmar et al, 2017;Pauporté, 2017) debido a sus propiedades eléctricas y a la alta movilidad de electrones que posee.…”

Section: Tipos De Celdas Solaresunclassified

“…A pesar de esta pequeña diferencia, se podría considerar que el proceso de electrodeposición de ZnO se puede realizar a un potencial de -0.8 V independientemente del medio electrolítico. Con el fin de conocer el proceso de crecimiento de la capa de ZnO sobre el sustrato de vidrio conductor en medio acuoso y orgánico se registraron las curvas transitorias del proceso de electrodeposición de ZnO (Londhe & Chaure, 2017;Oliveira et al, 2016). Las curvas cronoamperométricas de la electrodeposición de ZnO mostradas en la Figura 4.…”

Section:  Comportamiento Fotoeléctricounclassified

Diseño sostenible de materiales cerámicos multifuncionales para el suministro eléctrico de baja potencia.

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María²

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Electrodeposition of ZnO thin films on conducting flexible substrates

Cited by 24 publications

References 38 publications

Effect of Dip Time on Electrodeposited Zinc Oxide Nanofilm

Effect of Dip Time on Electrodeposited Zinc Oxide Nanofilm

The Influence of Shape on the Output Potential of ZnO Nanostructures: Sensitivity to Parallel versus Perpendicular Forces

Diseño sostenible de materiales cerámicos multifuncionales para el suministro eléctrico de baja potencia.

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