CdS/ZnS-doped silico-phosphate films prepared by sol-gel synthesis

Rusu, M. I.; Stefan, C.R.; Elisa, M.; Feraru, I.; Vasiliu, Ileana Cristina; Bartha, Cristina; Trușcă, Roxana; Vasile, Eugeniu; Peretz, Sandu

doi:10.1016/j.jnoncrysol.2017.11.025

Cited by 13 publications

(18 citation statements)

References 27 publications

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“…The nanocrystal size of PbS has been calculated using the Scherrer formula [ 41 , 45 ], Equation (1), applied to the main peaks found at 2 θ = 25.8° (111), 29.77° (200) and 42.90° (220) respectively,

where k is the Scherrer constant (the shape factor has a typical value of about 0.9); λ , the wavelength of the incident X-ray beam ( λ CuKα 1 = 1.5406 Å); 2θ , the peak position of the reflection; and Δ, the full width at half maximum of the reflection. According to this calculation, the PbS grain size was estimated to be around 7.99 nm compared to the size of PbS QDs from the dopant solution in toluene about 7 nm (Sigma-Aldrich-Technical Specification).…”

Section: Resultsmentioning

confidence: 99%

“…The final solution with pH = 8 was prepared using 5.9895 mL of precursor solution composed of TEOS, TEP, EtOH, and MEA and 5 mL of PbS solution. The solution was kept at room temperature, under continuous magnetic stirring, for 2 h, to achieve an improved homogenization of the starting reagents, followed by the deposition process by spin coating on a glass substrate [ 41 , 42 ]. The deposition process took place at 2000 rpm, for 20 s, 50 layers, each layer being dried on an electrical plate at 150 °C, for 2 min, to remove EtOH and water from the mixture and to promote the vitreous host matrix formation.…”

Section: Methodsmentioning

confidence: 99%

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Nanostructured PbS-Doped Inorganic Film Synthesized by Sol-Gel Route

et al. 2022

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IV-VI semiconductor quantum dots embedded into an inorganic matrix represent nanostructured composite materials with potential application in temperature sensor systems. This study explores the optical, structural, and morphological properties of a novel PbS quantum dots (QDs)-doped inorganic thin film belonging to the Al2O3-SiO2-P2O5 system. The film was synthesized by the sol-gel method, spin coating technique, starting from a precursor solution deposited on a glass substrate in a multilayer process, followed by drying of each deposited layer. Crystalline PbS QDs embedded in the inorganic vitreous host matrix formed a nanocomposite material. Specific investigations such as X-ray diffraction (XRD), optical absorbance in the ultraviolet (UV)-visible (Vis)-near infrared (NIR) domain, NIR luminescence, Raman spectroscopy, scanning electron microscopy–energy dispersive X-ray (SEM-EDX), and atomic force microscopy (AFM) were used to obtain a comprehensive characterization of the deposited film. The dimensions of the PbS nanocrystallite phase were corroborated by XRD, SEM-EDX, and AFM results. The luminescence band from 1400 nm follows the luminescence peak of the precursor solution and that of the dopant solution. The emission of the PbS-doped film in the NIR domain is a premise for potential application in temperature sensing systems.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Nanostructured PbS-Doped Inorganic Film Synthesized by Sol-Gel Route

et al. 2022

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“…The similar sol-gel synthetic approaches were also employed for the preparation of silica/β-TCP or other silicophosphate composite materials [271][272][273]. In the sol-gel processing of silica/CHAp composites sometimes vinyl triethoxysilane (VTES) instead of TEOS successfully was used [272].…”

Section: Sol-gel Synthesis Of Silica-based Compositesmentioning

confidence: 99%

Sol–gel synthesis of calcium phosphate-based biomaterials—A review of environmentally benign, simple, and effective synthesis routes

Ishikawa

Kareiva

2020

J Sol-Gel Sci Technol

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In this review article the available results about application of sol-gel synthesis method for the preparation of different calcium phosphates and composite materials are summarized. The attention is paid to calcium phosphate-containing compounds which show the biological properties and could be used as potential phosphate bioceramics in medicine. It was demonstrated that the sol-gel synthesis method is a powerful tool for the synthesis of calcium hydroxyapatite and other phosphates, and different calcium phosphate-based composites at mild synthetic conditions resulted in high reproducibility, high phase purity, and desired morphology. Thus, the sol-gel synthesis method enables the researchers to develop biomaterials with superior features in terms of biomedical applications.

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“…12,13 It means that by mixing the synthesis precursors of 2 or more different metals (or metal oxides) with defined rations, we would be capable of synthesizing nanocomposite coatings in one stage using sol-gel process. [14][15][16] The chemistry of sol-gel provides a variety of methods for producing materials with desired properties, groups with organic and inorganic chemical bonds, and various materials such as ceramics, xerogels, nanopowders, and sol-gel coatings. 17,18 Among the various applications of sol-gel hybrid materials, sol-gel coatings are recognized as precursors in corrosion protection.…”

Section: Introductionmentioning

confidence: 99%

“…This method is capable of depositing 2 or more types of nanoparticles simultaneously . It means that by mixing the synthesis precursors of 2 or more different metals (or metal oxides) with defined rations, we would be capable of synthesizing nanocomposite coatings in one stage using sol–gel process . The chemistry of sol–gel provides a variety of methods for producing materials with desired properties, groups with organic and inorganic chemical bonds, and various materials such as ceramics, xerogels, nanopowders, and sol–gel coatings .…”

Section: Introductionmentioning

confidence: 99%

A study on the effect of presence of CeO₂ and benzotriazole on activation of self‐healing mechanism in ZrO₂ ceramic‐based coating

Dezfuli

Sabzi

2018

Int J Applied Ceramic Tech

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In this study, the effect of presence of CeO2 and benzotriazole inhibitor agent on activation of self‐healing reactions and the corrosion behavior of ZrO2 ceramic‐based coating are evaluated. The ZrO2 and ZrO2‐CeO2‐benzotriazole ceramic‐based coatings were synthesized using sol–gel process and heat treated at 150°C. Afterward, X‐ray diffraction analysis (XRD), and Field Emission Scanning Electron Microscopy (FE‐SEM) were utilized to evaluate the phase analysis and morphology of these coatings. In addition, Energy Dispersive Spectroscopy (EDS) was used for elemental analysis of obtained coatings. Corrosion and self‐healing behavior of the coatings were investigated in 3.5 wt% NaCl solution using Electrochemical Impedance Spectroscopy (EIS) and potentiodynamic polarization tests. The results of XRD analysis revealed the amorphous nature of both coatings. FE‐SEM observations and EDS analysis results showed the presence of benzotriazole inhibitor agent and self‐healing reactions in the cracks and defects of ZrO2‐CeO2‐benzotriazole ceramic‐based coating. Moreover, results of electrochemical tests revealed that the presence of CeO2 and benzotriazole inhibitor agent in the ZrO2 ceramic‐based coating results in intense increases in the corrosion resistance of this coating by activating the self‐healing mechanism and forming passive layers.

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CdS/ZnS-doped silico-phosphate films prepared by sol-gel synthesis

Cited by 13 publications

References 27 publications

Nanostructured PbS-Doped Inorganic Film Synthesized by Sol-Gel Route

Nanostructured PbS-Doped Inorganic Film Synthesized by Sol-Gel Route

Sol–gel synthesis of calcium phosphate-based biomaterials—A review of environmentally benign, simple, and effective synthesis routes

A study on the effect of presence of CeO₂ and benzotriazole on activation of self‐healing mechanism in ZrO₂ ceramic‐based coating

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CdS/ZnS-doped silico-phosphate films prepared by sol-gel synthesis

Cited by 13 publications

References 27 publications

Nanostructured PbS-Doped Inorganic Film Synthesized by Sol-Gel Route

Nanostructured PbS-Doped Inorganic Film Synthesized by Sol-Gel Route

Sol–gel synthesis of calcium phosphate-based biomaterials—A review of environmentally benign, simple, and effective synthesis routes

A study on the effect of presence of CeO2 and benzotriazole on activation of self‐healing mechanism in ZrO2 ceramic‐based coating

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A study on the effect of presence of CeO₂ and benzotriazole on activation of self‐healing mechanism in ZrO₂ ceramic‐based coating