Synthesis and characterization photoluminescence properties of Au/GrO nanocomposites by microwave method

Mohammadi, Kheirollah; Ranjbar, Mehdi; Targholizadeh, Hossein

doi:10.1007/s10854-016-4772-2

Cited by 4 publications

(4 citation statements)

References 10 publications

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“…The quality of the perovskite films such as crystallinity and morphology has shown a strong influence on the performance of the photovoltaic devices. Several parameters can improve the crystallinity and the morphology of the films, including solvent engineering [14,15], deposition methods [16][17][18], thermal annealing [19,20], different architectures [21,22], optimization of the electron transport layer (ETL) and hole transport layer (HTL) [23][24][25], synthesis methods [26] and the precursors concentration [11]. It has been demonstrated that the microstructure and the crystallinity of the perovskite material can considerably influence the overall performance of the photovoltaic device.…”

Section: Introductionmentioning

confidence: 99%

Effect of solvents and annealing treatment on the properties of the methylammonium lead tribromide perovskite thin films

Mhamdi

Mehdi

Bouazizi

2021

J Mater Sci: Mater Electron

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Solution-processed hybrid organic-inorganic perovskites from organoammonium halide and lead halide precursors form effective active layers for optoelectronics devices. The solvent plays a decisive factor on the preparation of active layer for perovskite application. In this report, the properties of methylammonium lead tribromide (MAPbBr 3) thin films were studied using various solvents. The solvents used were dimethylformamide (DMF), dimethyl sulfoxide (DMSO), a mixture of DMF ? IPA (Isopropanol). The photoluminescence and absorption spectra show a good solubility of the perovskite content in the mixed solvent than that with DMF or DMSO which is attributed to the good crystallization of content in the film. Furthermore, the effect of annealing treatment on the structural and optical properties of MAPbBr3 thin films prepared with DMF ? IPA was investigated. The MAPbB 3 film annealed at 100°C has considerably improved the dissociation of the charges resulting from the good interaction of the solvent with the perovskite material and the good perovskite film quality.

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Section: Introductionmentioning

confidence: 99%

Effect of solvents and annealing treatment on the properties of the methylammonium lead tribromide perovskite thin films

Mhamdi

Mehdi

Bouazizi

2021

J Mater Sci: Mater Electron

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“…The application of encapsulation technology in functional food represents a novel area for researches. Nano-encapsulation of bioactive compounds could improve their dietary uptake, absorption and bio-availability of supplementary nutrients compared to ordinary sources (Mohammadi et al, 2016). Since, punicic acid is extremely susceptible to oxidation and insoluble in water.…”

Section: Introductionmentioning

confidence: 99%

Encapsulation of Pomegranate Seed Oil Using W/O/W Nano-Emulsion Technique Followed by Spray Drying and Its Application in Jelly Form

Mahmoud

Mehaya

Abu-Salem

2020

J microb biotech food sci

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Punicic acid, which is an ω-5 polyunsaturated fatty acid representing the main component of pomegranate seed oil (PSO) with pharmaceutical and food usages, is susceptible to oxidation. Also, its water insoluble properties allow only few fractions to be absorbed. Therefore, the protection of this oil as well as bioavailability and good abortion properties are the aim of our work. Formation of water in oil in water (W/O/W) emulsion from pomegranate seed oil followed by spray-drying resulted in its transformation to nano-encapsulated oil powder whose nano-capsules had a narrow size distribution and small diameters in addition to zeta potential of about −22.9 mV. Thus, the oil-loaded system was assumed to be stable. Scanning electron microscope (SEM) measurement has confirmed the presence of surface pores which allow higher air permeability of powder, consequently a higher solubility and release was predicted. Addition of the obtained nano-encapsulated oil to jelly had a good sensory attribute and acceptability. In conclusion, pomegranate seed oil can be consumed as nano-capsules in jelly form with better water-soluble properties and it was predicted to have good absorption with expected great bioavailability.

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“…The alumina core was coated with titanium dioxide in the photocatalytic industry by this technique in order to increase the mechanical strength of the composite and enhancing the productivity by reducing catalyst consumption 1,2,3,4,5,6 .…”

Section: Introductionmentioning

confidence: 99%

“…This core-shell structure demonstrates high resistance to thermal shock, high chemical resistance, low electrical and thermal conductivities, high heat capacity and many other desirable properties 1,3,4,5,7,8,9,10,11 .…”

Section: Introductionmentioning

confidence: 99%

Resistant in Alkaline Media Core-Shell Photocatalyst of Fe (TiO2/ Al2O3) for Degradation of Water Pollutant

Haghighaty¹,

Dehaghi²

2018

Orient. J. Chem

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In this research, initially after preparing γ-alumina and Fe(III) doped γ-alumina prepared by the sol-gel method, the initial calcination of the sols was carried out for 3 h at 300 o C and the obtained pulverized solid crystals were added into two sol-gel containers consisting of titanium tetra iso-propoxide (TTiP) and Fe(III) doped TTiP . After homogenization, the new sol was for 24 h and calcinated for 4 h at 600 o C. After the process of washing and purification, the core-shells were prepared and characterized. The photocatalytic properties were compared to those of the pure TiO 2 , which had been prepared by the sol-gel method. Some of the properties of these new synthesized particles include increased effective surface area of TiO 2 intake feed, increased activity of photocatalytic properties in terms of the alkaline pH, and enhanced strength of the core shell particles in the process of mechanical separation during the reactivation steps up to 10 times of recovery. Photocatalytic activity was examined by degradation of methylen blue. Doping Fe (III) in the core of γ-alumina, increased the mechanical stability while doping Fe (III) in the TiO 2 shell decreased the time of degradation and increased the stability of the catalyst in an alkaline solution to a pH of about 12.

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Synthesis and characterization photoluminescence properties of Au/GrO nanocomposites by microwave method

Cited by 4 publications

References 10 publications

Effect of solvents and annealing treatment on the properties of the methylammonium lead tribromide perovskite thin films

Effect of solvents and annealing treatment on the properties of the methylammonium lead tribromide perovskite thin films

Encapsulation of Pomegranate Seed Oil Using W/O/W Nano-Emulsion Technique Followed by Spray Drying and Its Application in Jelly Form

Resistant in Alkaline Media Core-Shell Photocatalyst of Fe (TiO2/ Al2O3) for Degradation of Water Pollutant

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