Effect of europium on the blue–green emission of ZnS thin films by polyol and dip-coating technique

Garrido-Hernández, Aristeo; Medina-Velazquez, D.Y.; Torre, A.S. de Ita y de la; Morales-Ramírez, Ángel de Jesús; Molina-Morales, M.; Barrón-Meza, M. A.; Ramírez-Quirós, Y.; Miranda, Joan Reyes

doi:10.1016/j.mssp.2020.105403

Cited by 6 publications

(4 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…e impact of hydroxide is minimized when ZnS is deposited in an acidic chemical bath. For most metal ions widely used in CBD, it is fair to conclude that no hydroxide is available under such conditions and also that deposition occurs through an ion-by-ion process [11][12][13][14]. e aim of this research was to look at ZnS thin films deposited under different defined temperatures for photovoltaic cell applications.…”

Section: Introductionmentioning

confidence: 99%

[Retracted] Studying the Effect of Metallic Precursor Concentration on the Structural, Optical, and Morphological Properties of Zinc Sulfide Thin Films in Photovoltaic Cell Applications

Saka¹,

Tesfaye²,

Kiran³

et al. 2021

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

Thin films of zinc sulfide (ZnS) with different concentrations of zinc acetate have been made by chemical bath deposition technique in acidic medium (pH = 5) on glass substrate using zinc acetate and sodium sulfide as sources of Zn+2 ion and S−2 ion, respectively, and ethylenediaminetetraacetate as complexing agents and sulfuric acid to adjust pH value at a constant deposition temperature of 85°C, and the deposition time of 90 minutes was used. The effect of the concentration of metallic precursor on the structural, morphological, and optical properties of chemical bath deposited zinc sulfide thin films was investigated in this study. The XRD result confirmed mixed phases of crystalline and amorphous structure dominating other phases, which is witnessed by larger crystallite size than other phases. It reveals that the thin films had hexagonal structure at the medium concentration with preferred orientation along (111) plane, and at lower and higher concentration, it showed that film has an amorphous structure in nature. The crystallinity of all the phases significantly enlarged with increasing the zinc precursor concentration. The SEM micrographs showed high-pitched edged irregular-shaped grains covering the substrate with pinholes and bangs. The optical properties investigated by the UV-VIS spectrometer specified a decrease in the optical bandgap of the films between 3.5 eV and 2.6 eV as the zinc acetate concentration in the solution increased from 0.1 to 0.2 M. It showed that the zinc sulfide had high absorption in the UV radiation. The main finding of this paper is that metallic precursor concentration has a significant role in the optical, morphological, and microstructural properties of the cobalt sulfide thin films, which are most suitable for photovoltaic applications.

show abstract

Section: Introductionmentioning

confidence: 99%

[Retracted] Studying the Effect of Metallic Precursor Concentration on the Structural, Optical, and Morphological Properties of Zinc Sulfide Thin Films in Photovoltaic Cell Applications

Saka¹,

Tesfaye²,

Kiran³

et al. 2021

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

show abstract

“…These are electro-depositions, Spray pyrolysis, and Photo accelerated biochemical depositions 17 , void evaporations solid–gas depositions 18 . Generally, the provision of thin films had been applied through several procedures such as D-C magnetrons spluttering 19 , pulses electro-deposition techniques 20 , thermal vaporization technique 21 rf magnetrons sputtering 22 , Sprays Pyrolysis technique 23 as well as CBD (chemical bath deposition) techniques 24 . When a chemical bath is equated with the above approaches, it is comparatively simpler, more quick and cheap.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of nano-sized lead sulfide thin films from Avocado (Glycosmis cochinchinensis) Leaf extracts to empower pollution remediation

Saka

Gudata

Jule

et al. 2022

Sci Rep

View full text Add to dashboard Cite

The translucent and nano-crystalline PbS films were equipped with the CBD techniques on metal substrates by the temperature of 90 °C through aqueous solutions of Lead Nitrate and Thiourea. The XRD phases verify the crystalline property of synthesized thin films that the shape falls in the cubic structures with favourite orientations. It revealed that the prepared material is cubic crystal oriented as (111), (110), (100) and (101) crystal planes. The crystalline size varied between 0.4 and 0.7 nm. The band gap was assessed using UV–vis captivation spectra and Tau relations. The average energy band gap was found to be 2.43 eV which is greater than bulk materials of PbS; because of quantum confinements of Lead Sulfide Nano Crystalline thin films, and PL also confirms this result. The variation in band gap with Leaf extracts and particle sizes displayed blue shifts characteristic of electrons quantum confinements. SEM micrograph shows extremely uniform and adherent PbS films are found at higher PH values. It was evidently observed that the viscosity of the synthesized thin films reduced from 563 to 111 nm with a rise in pH value. The sample prepared at pH 4 shows good performance, and thin films deposited from Avocado (Glycosmis cochinchinensis) leaf extracts are a promising method to empower pollution remediation and future energy.

show abstract

“…This may be because the existence of impurity comes from substrates. The profound emanations in the visible range designate the existence of structural defects 28 . A feeble band's emissions in the U-V section are detected at 372–428 nm, conforming to the radiated re-combinations between the animated electron in the conductions band as well as the holes in the valence bands 29 – 32 .…”

Section: Resultsmentioning

confidence: 99%

Biological approach synthesis and characterization of iron sulfide (FeS) thin films from banana peel extract for contamination of environmental remediation

Saka

Jule

Shuma³

et al. 2022

Sci Rep

View full text Add to dashboard Cite

Biological approach synthesis and characterization of Iron Sulfide (FeS) thin films from banana peel extract for contamination remediation of environment studied. Iron chloride, Sodium thiosulfate and Ethylene-di-amine-tetra acetate (EDTA) were used as precursor solutions without further purification. The nanoparticle of banana peel was extracted and prepared with synthesized FeS thin films and analyzed by X ray-diffraction for structural examination, Scanning electron microscope (SEM) for surface morphological analysis, Ultra-violet-visible-spectrometer (UV–Vis) and photo-luminescence spectro-photo-meter (P-L) for optical characterizations. XRD peaks are shown with recognized to (110), (200), (310), and (301) crystalline planes. The occurrence of this deflection peak are recognised the FeS crystal segment of the tetragonal crystalline systems. SEM micrographs of the films prepared biological method show the distribution of grains, which cover the surface of the substrate completely and are uniform and films deposited purely have defects. The photo-luminescence, absorbance, and transmittance strength of banana peel extract FeS thin film is greater than pure FeS thin films in which wide-ranging and symmetries groups were perceived. In the present study, the comparison of pure FeS thin films and Nano synthesized banana peel extract with FeS thin films was studied. It is observed that Nano synthesized banana fibre absorbs higher than pure FeS thin films in solar cell application. Finally, green synthesis is an ecofriendly, easy and cheap promising method for the fabrication of thin films for solar cell applications.

show abstract

Effect of europium on the blue–green emission of ZnS thin films by polyol and dip-coating technique

Cited by 6 publications

References 38 publications

[Retracted] Studying the Effect of Metallic Precursor Concentration on the Structural, Optical, and Morphological Properties of Zinc Sulfide Thin Films in Photovoltaic Cell Applications

[Retracted] Studying the Effect of Metallic Precursor Concentration on the Structural, Optical, and Morphological Properties of Zinc Sulfide Thin Films in Photovoltaic Cell Applications

Synthesis of nano-sized lead sulfide thin films from Avocado (Glycosmis cochinchinensis) Leaf extracts to empower pollution remediation

Biological approach synthesis and characterization of iron sulfide (FeS) thin films from banana peel extract for contamination of environmental remediation

Contact Info

Product

Resources

About