Using Simple Microwave Approach for Synthesize of CuInS2 Nanostructures and Investigation of their Performance in Solar Cells

This study focuses on the preparation and characterization of single phase CuInS2 nanoparticles with a copper complex as precursor via microwave technique. The effect of sulfur sources on product size and morphology was investigated. The products were characterized by X-ray diffraction, scanning electron microscopy, ultraviolet–visible spectroscopy, and photoluminescence spectroscopy. Thin films CuInS2 were prepared by doctor’s blade method and then studied via I-V characterization

Using Simple Microwave Approach for Synthesize of CuInS2 Nanostructures and Investigation of their Performance in Solar Cells

This study focuses on the preparation and characterization of single phase CuInS2 nanoparticles with a copper complex as precursor via microwave technique. The effect of sulfur sources on product size and morphology was investigated. The products were characterized by X-ray diffraction, scanning electron microscopy, ultraviolet–visible spectroscopy, and photoluminescence spectroscopy. Thin films CuInS2 were prepared by doctor’s blade method and then studied via I-V characterization

Synthesis and Characterization of Copper Indium Sulfide Microsphere and its Application in Low-Cost Solar Cell

CuInS2 microsphere was synthesized by Ultrasonic method in propylene glycol, as solvent, and copper complex, indium chloride and thioacetamde (TAA) as precursors. Optimum conditions such as reaction time, solvent type, sulfur source, and ultrasonic power were determined. Then thin film of CuInS2 was prepared and its application in solar cells was investigated. To investigate solar cell application of CuInS2 in the present experiment, at first CuInS2 paste was prepared from nanoparticle and then thin film prepared by doctor balding. I–V curves offer key parameters including short-circuit current (ISC) and the opencircuit voltage (VOC). Another important parameter for solar cells is fill factor (FF). A series of analysis including X-ray diffraction (XRD), scanning electron microscopy (SEM) and photoluminescence (PL) spectroscopy were performed to characterize the CusInS2 microsphere. The optical band gap of CuInS2 microsphere was estimated to be 2.28 eV. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3499

Study on Microstructure and Ablation Properties of Graphene Oxide/Zirconium Diboride Nanoparticle/Carbon Fiber/Resol Nanocomposites

.The development of compatible additives for hot corrosion inhibition in high temperature application requires test methods which yield significant results on a short time scale. The present study aims at the evaluation of the effect of hot corrosion inhibiting model additives on the performance of an ablative phenolic resin using oxy-acetylene torch test which measure different properties. Thermogravimetric analysis (TGA) and field‐emission scanning electron microscopy (FESEM) in combination with energy disperse Xray (EDX) are used. Two kinds of corrosion inhibiting additives are employed: an inorganic inhibitor based on graphene oxide sheets (GO); a ceramic nanoparticle (ZrB2) with inhibiting properties. The results obtained show that hot corrosion inhibiting additives drastically modify the ablation and thermal stability. The experimental approach described in this paper should be useful for additive development in carbon fiber/phenolic composite because it yields a more durable product than can be obtained by neat composite of how a given additive affects the ablation performance in a hot corrosive environment

Investigation of presence different surfactant on morphologies of PbTe nanostructures

PbTe nanostructures were prepared by a hydrothermal method on presence of different surfactant. Results show that in constant condition by changing the capping agent the morphology of as-obtained PbTe were revolutionize PbTe nanostructures show a strong photoluminescence peak at 402 nm at room temperature, also optical absorption spectrum of PbTe nanostructures exhibit an extreme blue-shift, which is attributed to the quantum confinement of charge carriers in the nanostructures. X-ray diffraction, scanning electron microscopy, transmission electron microscopy, photoluminescence spectroscopy, and Fourier transformed infrared spectroscopy were used to characterize the as-produced PbTe nanostructures

Investigation of presence different surfactant on morphologies of PbTe nanostructures

PbTe nanostructures were prepared by a hydrothermal method on presence of different surfactant. Results show that in constant condition by changing the capping agent the morphology of as-obtained PbTe were revolutionize PbTe nanostructures show a strong photoluminescence peak at 402 nm at room temperature, also optical absorption spectrum of PbTe nanostructures exhibit an extreme blue-shift, which is attributed to the quantum confinement of charge carriers in the nanostructures. X-ray diffraction, scanning electron microscopy, transmission electron microscopy, photoluminescence spectroscopy, and Fourier transformed infrared spectroscopy were used to characterize the as-produced PbTe nanostructures

Chemical Synthesis of Sub-micrometer- to Nanometer-sized of Antiferromagnetic Sr2CuO3 Ceramic

In summery, we describe the synthesis of the Sr2CuO3 particles from micro- to nano-meter by the modified sol–gel technique. It was demonstrated by SEM images that in samples prepared with low molar ratio of citric acid, nano -structure materials with small and tiny grains were obtained. The XRD result showed that the single phase of Sr2CuO3 sample without any impurity peak is formed at 950 degrees Celsius. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3476

Preparation of Stochiometric Cu2S Nanoparticles by Ultrasonic Method

This study reports on the synthesis of Cu2S nanoparticles via an ultrasonic method by employing Na2SO3 as a reducing agent This method is novel, simple and can be easily controlled. Effects of power and time of sonication were investigated. Morphology, structure, and composition of the obtained products were characterized by X-ray diffraction (XRD), energy dispersive X-ray analysis (EDX), scanning electron microscope (SEM) and photoluminescence (PL) spectroscopy. The effects of time and power of irradiation were studied. XRD calculations show that the average crystallite diameter of Cu2S nanoparticle is about 25 nm. The calculated band gap of Cu2S nanosparticle (2.24 eV) shows obvious blue shift. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3508