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China not only leads the world production of solar panels: practically has cemented its energy industry About them. After years of betting on The massive expansion of silicon panelsthe country has put its gaze on a more promising technology: Perovskita’s solar cells.
The problem? Make them on a large scale It has beenuntil now, a huge technical challenge. However, solving that puzzle is, for China, a strategic issue, and everything indicates that it has just found the key piece that was missing.
The missing piece. After three years of work, a group of researchers from the Institute of Applied Chemistry of Changchun – part of the Chinese Academy of Sciences— has found a solution that can make a difference: an ultrafine layer that improves how electricity flows in Perovskita’s solar cells. This is how they have managed to make panels better, last more and, above all, they can be manufactured massively. And that is the piece that was missing so that this technology can make the leap to the global market.
More technical. The discovery, Published in Science magazinewhat he has achieved is to create a “self -assembly molecule of double radical”, which acts as a hollow transport layer (HTL). This intermediate layer is key for solar devices to work properly, since it facilitates the movement of the positive charges generated by the light.
According to the tests of the Zhou Min team, the new material far duplicates the transport rate of carriers under simulated conditions. And the most impressive: the devices made with it show almost intact yield even after thousands of hours of continuous use.
The Kit of the matter. Perovskita’s solar cells have been grabbing headlines for years. And it is not for less: they are cheap, light, efficient and so versatile that they can be placed in Facades, windows either fabric. Everything pointed out that they would be the natural relay of silicon. But there was a problem that did not finish solving: its fragility and how complicated it is to manufacture them on a large scale.
In this way, this new material solves those two fronts. On the one hand, it produces improved stability that resists degradation over time. On the other hand, it can be manufactured in a simple and uniform way, even on large surfaces, without losing quality. In addition, the advance has been certified in terms of efficiency by the National Renovable Energies Laboratory. UU. (NREL), which gives it a crucial technical support beyond China’s borders, According to Interesting Engineering.
Who seeks to find. China does not want to repeat saturation collapse who lived with silicon. This time, it points higher and further: not only dominate production, but also to improve the next generation of solar panels. With this advance, Perovskita ceases to be a distant promise to become a tangible reality. If technology manages to climb commercially – as the research teams are already planned – we could be witnessing the beginning of a new solar era: cleaner, more efficient and more accessible to all.
Image | Chinese Academy of Sciences
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