Low temperature cathodic electrodeposition of nanocrystalline zinc oxide thin films

Zhang, Lisha; Chen, Zhigang; Tang, Yiwen; Zeng, Jia

doi:10.1016/j.tsf.2005.06.028

Cited by 66 publications

(26 citation statements)

References 26 publications

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“…3a and 3b, the peak O 1s before and after thermal treatment is asymmetric which reveals the presence of a peak multi-component of oxygen and it can be decomposed into three component peaks [14]. These three peaks correspond to three phases on the surfaces.…”

Section: Resultsmentioning

confidence: 97%

The Effects of the Thermal Treatment on the Structural and Magnetic Properties of Zn–Co Alloys Prepared by Electrochemical Deposition

Vlad

Sandu

Georgescu

2011

J Supercond Nov Magn

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In this study, the samples were electrolytic grown under identical conditions, using potentiostatic control. We have studied the structural and magnetic properties of the Zn-Co samples. The alloy composition, structure and morphology, the effects of the thermal treatment temperature and the magnetic properties were strongly dependent on the cathode potential during the electrodeposition process. Detailed XPS analysis indicates the presence of zinc oxide (ZnO) in the samples as-prepared and after thermal treatment. We have also obtained information about the evolution of the magnetic susceptibility and the curves of magnetic hysteresis subsequent during thermal treatment. The coercivities of the Zn-Co samples as-deposited and annealed at 350°C temperature increase after annealing.

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Section: Resultsmentioning

confidence: 97%

The Effects of the Thermal Treatment on the Structural and Magnetic Properties of Zn–Co Alloys Prepared by Electrochemical Deposition

Vlad

Sandu

Georgescu

2011

J Supercond Nov Magn

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“…The reduction in temperature has resulted in a change in morphology habitat as reported in [39] for Se and Cu depositions [40]. Grain refinement [41,42] as well as coarsening [43,44] has also been cited in the literature. Porous [45,46] and compact [39,47] deposits have been observed with reduced electrolyte temperature.…”

Section: Effect Of Temperaturementioning

confidence: 97%

Evolution of Principle and Practice of Electrodeposited Thin Film: A Review on Effect of Temperature and Sonication

Mallik

Ray

2011

International Journal of Electrochemistry

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This review discusses briefly the important aspects of thin films. The introduction of the article is a summary of evolution of thin films from surface engineering, their deposition methods, and important issues. The fundamental aspects of electrochemical deposition with special emphasis on the effect of temperature on the phase formation have been reviewed briefly. The field of sonoelectrochemistry has been discussed in the paper . The literature regarding the effects of temperature and sonication on the structure and morphology of the deposits and nucleation mechanisms, residual stress, and mechanical properties has also been covered briefly.

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“…4 In particular, the electrodeposition technique has advantages over other processes due to its simplicity, low equipment cost and the possibility of obtaining large area thin films. 5 Also electrodeposition is an efficient and reliable technique for preparing ZnO nanocrystallites, nanowires and nanofibers.…”

mentioning

confidence: 99%

“…There have been many reports on the electrodeposition of ZnO using aqueous [6][7][8] and non aqueous routes. 9 Most of the reported work on electrodeposition was done using solutions based on ZnCl 2 and Zn(NO) 3 , in aqueous solution.…”

mentioning

confidence: 99%

“…9 Most of the reported work on electrodeposition was done using solutions based on ZnCl 2 and Zn(NO) 3 , in aqueous solution. Though the temperature required for the synthesis is important, the same as ion concentration, the morphology of the ZnO grown depends really on nucleation leading from unoriented polycrystalline films, 10,11 to nanorods 6 and sheets. 9 A key issue is the relation of electrochemical variables on nucleation for controlling the morphology of these films.…”

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confidence: 99%

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Electrochemical Deposition Mechanism for ZnO Nanorods: Diffusion Coefficient and Growth Models

Tolosa

Orozco-Messana

Lima

et al. 2011

Journal of the Electrochemical Society

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Fabrication of nanostructured ZnO thin films is a critical process for many applications based on semiconductor devices. So on understanding of the electrochemical deposition mechanism is also fundamental for knowing the optimal conditions on growth of ZnO nanorods by electrodeposition. In this paper the electrochemical mechanism for ZnO nanorods formation is studied. Results are based on the evolution of the diffusion coefficient using the Cotrell equation, and different growth models proposed by Scharifcker and Hills for nucleation and growth. A broad range of high-technology applications, ranging from surface acoustic wave filters, photonic crystals, light emitting diodes, photodetectors, photodiodes, optical modulator waveguides, varistors, and gas sensor to solar cells, are based on ZnO nanostructures, due to its wide bandgap, excellent chemical and thermal stability, and its specific electrical and optoelectronic property of being a II-VI semiconductor with a large exciton binding energy. In particular, the electrodeposition technique has advantages over other processes due to its simplicity, low equipment cost and the possibility of obtaining large area thin films. 5 Also electrodeposition is an efficient and reliable technique for preparing ZnO nanocrystallites, nanowires and nanofibers.There have been many reports on the electrodeposition of ZnO using aqueous 6-8 and non aqueous routes. 9 Most of the reported work on electrodeposition was done using solutions based on ZnCl 2 and Zn(NO) 3 , in aqueous solution. Though the temperature required for the synthesis is important, the same as ion concentration, the morphology of the ZnO grown depends really on nucleation leading from unoriented polycrystalline films, 10, 11 to nanorods 6 and sheets. 9 A key issue is the relation of electrochemical variables on nucleation for controlling the morphology of these films. 12The aim of this study is to determine the electrochemical growth mechanism for ZnO nanorods in a ZnCl 2 5 · 10 −3 M, KCl 0.1M solution, at different temperatures. As shown by Pauporté and Lincot 12 the electrochemical reactions that compete in the nucleation stage are:This paper analyzes the kinetic control for both reactions at different temperatures and proposes a nucleation model mechanism for ZnO nanostructures. Through the presented models a better control of electrodeposited ZnO morphology can be attained. ExperimentalSamples were prepared from ITO sputtered glass (resistivity at room temperature 10 ( /cm 2 ). The substrates were cleaned using ultrasonic agitation in a mixture of distilled water with liquid neutral soap during 10 minutes, rinsing in distilled water for 10 minutes, and finally immersion in isopropanol for 10 minutes prior to drying in nitrogen current. * Electrochemical Society Student Member. z E-mail: mareto@upvnet.upv.esFor the experiment a solution containing the following electrolytes was used: 0,1 M KCl Rectapur purity > 99%), ZnCl2 5 · 10 −3 M (Panreac purity > 98%), and continuous oxygenation by a bubbling flow of 0...

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Low temperature cathodic electrodeposition of nanocrystalline zinc oxide thin films

Cited by 66 publications

References 26 publications

The Effects of the Thermal Treatment on the Structural and Magnetic Properties of Zn–Co Alloys Prepared by Electrochemical Deposition

The Effects of the Thermal Treatment on the Structural and Magnetic Properties of Zn–Co Alloys Prepared by Electrochemical Deposition

Evolution of Principle and Practice of Electrodeposited Thin Film: A Review on Effect of Temperature and Sonication

Electrochemical Deposition Mechanism for ZnO Nanorods: Diffusion Coefficient and Growth Models

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