Low temperature fabrication and characterization of wurtzite structured ZnS quantum dots by chemical spray pyrolysis

Safeera, T.A.; Johns, N.; Anila, E.I.; Martı́nez, Arturo I.; Sreenivasan, P. V.; Reshmi, R.; Mallick, Sudhanshu; Jayaraj, M. K.

doi:10.1016/j.jaap.2015.07.005

Cited by 19 publications

(3 citation statements)

References 38 publications

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“…For PV and electronic applications, not only the active polymer layers are spray-deposited, also complex metal oxides, e.g. TiO 2 , ZnO, or ITO, QD and nanostructured semi-conducting layers can be fabricated by spray pyrolysis [118,[351][352][353][354][355][356][357][358][359][360][361][362][363][364][365][366][367][368]]. Reviews can for example be found in [112,204].…”

Section: Photovoltaicsmentioning

confidence: 99%

A deep look into the spray coating process in real-time—the crucial role of x-rays

Roth

2016

J. Phys.: Condens. Matter

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Tailoring functional thin films and coating by rapid solvent-based processes is the basis for the fabrication of large scale high-end applications in nanotechnology. Due to solvent loss of the solution or dispersion inherent in the installation of functional thin films and multilayers the spraying and drying processes are strongly governed by non-equilibrium kinetics, often passing through transient states, until the final structure is installed. Therefore, the challenge is to observe the structural build-up during these coating processes in a spatially and time-resolved manner on multiple time and length scales, from the nanostructure to macroscopic length scales. During installation, the interaction of solid-fluid interfaces and between the different layers, the flow and evaporation themselves determine the structure of the coating. Advanced x-ray scattering methods open a powerful pathway for observing the involved processes in situ, from the spray to the coating, and allow for gaining deep insight in the nanostructuring processes. This review first provides an overview over these rapidly evolving methods, with main focus on functional coatings, organic photovoltaics and organic electronics. Secondly the role and decisive advantage of x-rays is outlined. Thirdly, focusing on spray deposition as a rapidly emerging method, recent advances in investigations of spray deposition of functional materials and devices via advanced x-ray scattering methods are presented.

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Section: Photovoltaicsmentioning

confidence: 99%

A deep look into the spray coating process in real-time—the crucial role of x-rays

Roth

2016

J. Phys.: Condens. Matter

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“…[ 23 ] They reported the formation of ZnS quantum dots with a wurtzite structure at the same substrate temperature of 350 °C. [ 24 ] Zeng et al. prepared ZnS thin films using thioacetamide as sulfur source and observed the formation of wurtzite structure at the spray temperature of 310 °C.…”

Section: Introductionmentioning

confidence: 99%

“…[23] They reported the formation of ZnS quantum dots with a wurtzite structure at the same substrate temperature of 350 °C. [24] Zeng et al prepared ZnS thin films using thioacetamide as sulfur source and observed the formation of wurtzite structure at the spray temperature of 310 °C. [25] Today, power conversion efficiencies of 18.6%, 7.8%, and 8.4% were achieved by CIGSe, CIS, and CZTS based solar cells, respectively.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study of the Structural and Optical Properties of ZnS Films Deposited by Spray‐Pyrolysis Technique

Najim

Hartiti

Nkuissi

et al. 2023

Cryst. Res. Technol.

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This study aims at synthesizing zinc sulfide (ZnS) thin films using spray pyrolysis method. The effect of the Zn concentration on the physical properties of ZnS is investigated using X-ray diffraction (XRD), scanning electron microscope (SEM), UV-Vis spectrophotometer, photoluminescence (PL), and Raman spectroscopy. XRD shows a preferential orientation along the (111) direction corresponding to the ZnS cubic structure. Based on the XRD results, it is seen that low zinc concentrations compared to sulfur content can increase the crystalline quality of films. Raman spectra confirm the presence of the ZnS cubic structure observed by XRD and show the presence of sprayed ZnS vibrational modes for all films. PL emission spectrum of ZnS confirms the presence of Zn and S atoms at all molar concentrations. SEM reveals densely packed and uniformly distributed grains with precise shapes. The elemental analysis confirms the growth of stochiometric Zn/S ratio. The optical analysis shows a high transmittance around 88% in the visible range of the solar spectrum with optical band gaps varying from 3.4 to 3.6 eV. These properties are interesting and show that ZnS thin films can be used as buffer layers in thin film solar cells applications.

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Structural, optical, photocurrent and mechanism-induced photocatalytic properties of surface-modified ZnS thin films by chemical bath deposition

Liu

Duo

et al. 2016

J Mater Sci: Mater Electron

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Low temperature fabrication and characterization of wurtzite structured ZnS quantum dots by chemical spray pyrolysis

Cited by 19 publications

References 38 publications

A deep look into the spray coating process in real-time—the crucial role of x-rays

A deep look into the spray coating process in real-time—the crucial role of x-rays

A Comparative Study of the Structural and Optical Properties of ZnS Films Deposited by Spray‐Pyrolysis Technique

Structural, optical, photocurrent and mechanism-induced photocatalytic properties of surface-modified ZnS thin films by chemical bath deposition

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