This work is a Copper oxide (CuO) thin films were effectively produced using cold spray technique. The process take place in an inert gas (helium) without using catalyst. Nano CuO was deposited on a glass slide, using helium as carrier gas heated to 100, 200, 300, and 400 °C, respectively on heated glass substrates at 300°C. The effect of structural and electrical properties was examined at each temperature for each film. AFM images show that the CuO thin film have different diameters ranging from 80 to 600 nm, and low surface roughness about 20.9 nm. The measured value of copper oxide resistivity was found to be decrease very much with the increasing temperature. All the result showed that copper oxide is suitable material for photovoltaic applications. This research is part of a larger work for the solar cells industry. Therefore, the aim of this research is to study the electrical properties of solar cells in the primary stages of manufacturing from available materials at low costs.
Simulation and modeling are very strong tools to design and simulate engineering cases that can be difficult to ably experimentally. In microscale domains, simulation and modeling play a very strong role to maintain results for specific cases that are hard to explain in microfluidic devices experimentally. Microfluidic devices were developed for mixing, separation, drug delivery, and microspheres formation. Drug delivery and microfluidic devices and modeling have a tight relationship that can solve and discuss the behavior of microspheres under variable formation process conditions. The main goal of this research is to discover the microspheres formation behavior under different flow rates. Experimentally, starch microspheres were formed with a different shape ranging from oval to spherical shape. This difference in shape was the main goal to study in this paper. To understand the shape changing, a numerical simulation study has been introduced using (ANSYS workbench 16.1) program, to simulate and study the microspheres formation process and the effect of flow rate varying on microspheres formation.
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