Polymer solar cells are one of the most promising low cost tools for converting solar irradiation into electrical power. Devices for the reduction of the performance of polymer-based solar cells and the performance of polymer-based solar cells have been tested by ultrasonic spray nozzle technology
Polymer solar cells generate electricity with active organic layers. Polymer based solar cells use electrically conductive polymers that may be cheaper than crystalline silicon based systems. Furthermore, these polymers can be placed on solar cells using various methods, each of which determines the potential cost of generating a polymer solar cell and its performance.
The Colorado State School of Mines, the Photovoltaic National Center and the National Renewable Energy Laboratory; Inkjet Printing, Airbrush Sprays, Ultrasonic Sprayers, Slit Coating and Coating have been analyzed for their efficiency and performance. Among these methods, ultrasonic spraying technology has shown the most promising results.
Ultrasonic spraying technology proved not only cost-effective but also created a single photovoltaic coating. Functionally, ultrasonic atomization technology works with ultrasonic atomizing film coatings to work very evenly, evenly arranged and separated droplets that can be controlled on the substrate. In this study, the ultrasonic nozzles installed 18 μm droplets so that they could easily build the desired size foil. Liquid solution of the test substance as a liquid solution of poly (3-hexylthiophene) (P3HT) and phenyl-C61 butyryl methyl ester (PCBM) in chlorobenzene or p-xylene as carrier solvents. This coating was laminated with poly (3,4-ethylenedioxythiophen) polystyrene sulphonate (PEDOT: PSS), indium tin oxide (ITO) and glass.
P3HT: PCBM thin films were chlorobenzene or p-xylene solvents X-ray diffraction, optical microscopy and other devices. These solvents have almost the same properties, but have produced different results. In order to assess the effects of these reactions, efficiency gains were assessed. Interestingly, the chlorobenzene film showed a 3% efficiency which increased the rate on the active layer by adding additional chlorobenzene layers to 3.2%. P-xylene is very low in efficiency, approx. Produces 0.1% power. This number was attributed to the gap between P3HT and PCBM and would not improve by spraying additional layers of P-xylene.
According to the results of the study ultrasonic spraying technology is a promise of potentially low-cost scalability in the field of organic-based polymer solar cells. It has been shown that the choice of solvent has a great influence on the results and the processing of the appropriate film production conditions. The authors suggest that future studies concentrate on how to modify surface roughness and fine-tuning solvent mixtures to achieve more efficient cells
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