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| Tue, 9th Jun 2020 13:17:00 |
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A spray coating process for perovskite PV |
Scientists at Thailand's Mahidol University have developed a new spray coating process which they say could be used in the production of stable multi-layered perovskite solar cells in a variety of colors and transparencies.
As perovskite solar cells edge closer to commercial, a wealth of different ways to produce them is being suggested, each with its own set of advantages and disadvantages. One advantage common to most is that the active layers can be applied directly to glass or a flexible substrate at a relatively low temperature, meaning production processes can be kept fairly simple, particularly in comparison to silicon PV's requirements for ingot growth, wafer cutting and other complex, energy intensive processes.
And when it comes to applying perovskite materials to a substrate, various types of process are suggested, from simple inkjet printing to more complex solution based processing. And now, Thailand's Mahidol University is bringing to the table another process, this time based on precision spray coating.
The process, according to Pongsakorn Kanjanaboos of Mahidol's School of Materials Science and Innovation, allows for the sequential deposition of stacked cell layers, including additional perovskite layers. This could allow for production of highly stable devices, and for the customization of other properties, including the color of the modules.
Read original full article
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