A whole lot of crime. Its probably up to speed if the care we subscribe to the center every friday. Subscribe to plan. Its a the tiny solar. So my thing about the revolution i, solar energy, as we know it, its more efficient than a spend. Thats silicon solar cell can be easily synthesized and doesnt need to be mind like silica as it can work on in film. So you probably a smart house speaker, but it also it can go on your roof. Say hi to this crystal struck chuckle is pearl skies. It promises improvements to solar cells that are almost too good to be true. Thats why were using solar cells. Well, for spouses, the regular solar sales, you know, i made with silicon and they actually quite inefficient at converting some light into energy. Only about 20 to 25 percent of sunlight can be captured on a commercial size, but that silicon needs to be mine. And purified in Energy Intensive processes that require more than 1000 degree celsius of heat. If you want to know more than this, we have a full video on that. Here, i bought a new material called corrupt cut might actually be able to solve all of this to understand why they asked us to peer out to you a spend that silicon. So i went here the, how much sent home in building theyve been researching postcards as set up solving materials for about a decade. Hey, how are you doing . Good. And this is the guy in charge of the research and steve, i even said World Records for the most efficient pulse guide solar cells. So on a very basic level, what does for us kind of look like the temper off good is a very generic term for a specific crystal structure, right . You can see that here over there. So the close to the structure has the x 3 formula. And like each component is the sort and i, the element for molecule. One of the most common combinations in this structure is methyl ammonium as the a on the corners. The metal lots for be in the center and the chloride or iodide as the x which form around the metal. But theres quite a vast range of materials that can be used and combined. And its quite wild how easily these can be put together. Oh, this is a Lab Environment, but before we do that, security 1st as we are going to up with toxic flat with one of these products, its good to go look a bit like i mentioned that it was okay. Time to get in our base materials. Matthew mixes methyl ammonium, chloride, and let i o die too late to create a b x for you. Crystal structure. By the way, everything happens in these boxes so that no water or oxygen comes in contact with our precious per office kite. So what is now the advantage of these materials compared to silicon . So i believe that one of the main advantages of prostate or silicon as material is the ease of processing. So silicon is something that is relatively Energy Intensive to fabricate. But this is something that can be done at post to room temperature, so it doesnt require much energy. So its easy to do. Everything is relatively abundant. And so it, its, it shouldnt be bottlenecked for production. So these base materials are more abundant then silicon ends are easier to process. Now we have the base materials, but how do we make is some absorbing tariff guide out of it. So i deposit uh the solution of prostate and then it spins up, you know, quite fast. So something like, uh, 4000. 00 revolutions for per minute. And then i dropped on the ac solving solution and that drives the, the crystallization. The method that matthew is using his cold spin coating, but perhaps kind solar cells can also be directly printed onto the surfaces using similar processes to those useful printing newspapers. Another method is, is that parades in perhaps guides onto surfaces. Spin coating usually takes place in the Lab Environment and it can be tedious. Matthew accidentally dropped the glass, not a big problem in a live environment, but for commercial production, this is not viable. Matthew gives it a 2nd try and this time everything works. After the spin coating it goes on to a heating plate and the darkening shows us that the crystals are being formed. It works the same way as when salt water evaporates and you start to see the salt. Theyre all sales like this one here, which are only made out of rough guy, but in many cases theres a silicon layout beneath the to the cells. I called 10 themselves and looked like this right now, they are the most promising candidates when it comes to increasing the efficiency of solar cells. But at some point, it might be possible to a band. And so they can completely test that 10 themselves efficiency. The research was at hand, hard sent home, use a some simulator. It determines exactly how much sunlight is converted into electricity. What kind of efficiency that we just met . So when we made that almost 30 percent, quite nice achievement, why does it tend them . So a cell reach that much more efficiency than single jacksonville. So sometimes a lot samples may much more use of the incoming lights, so we have a lot. So on spectrum of the solar cells, they channel the spectrum, the parent sky. So also in this case makes use of the visible wavelength. So everything which we can see by i, its been converted into pay arrows got installed on sale into electrical energy. Whereas the infrared light passes through the peril sikesdale and hes been converted into silicon salsa which is quite deficient you converting in for red line. So the share of the spectrum in each cell is very efficient. And the reason it doesnt sound like that much, but i just has me this way, roughly 50 percent more. Some lives can be converted into electrical energy. So more overall sunlight can be a saw con by any of these tendons. So yeah, because before they go into serious production, normal stuff that needs to be a major issue is the stability of peril. Scott structures using 10 themselves. Pearls caught structures easily put together at low temperatures as we saw earlier. But they also come apart easily. Even the charges that travel through the pearl scott in the cell, the cell can create defects and destroy the power of god. Structures. Also, external effect does like moisture heat, oxygen, and u. V. Light can break it down further and quickly decrease. Its a record breaking efficiency. This whole process is called degradation, which researches and companies are trying to fight with different forms of m calculation. Its use of the solar modules from accidental influences and is an essential spent for commercialization to sales, which is part of a do a p and academia and Industry Partnership plans to develop commercial sized modules with an efficiency of 26 percent of a lifetime of 13 yes, a box for tv, a Company Founded by Oxford University graduates, has reached an efficiency of 28. 6 percent and supposedly sold the degradation issue already. But both companies havent published verifiable data yet. That also isnt even a lot of research on real world outdoor tests. I. These are a lot of so that you test. Yeah. Wow. This is colleen c overseas, the degradation tests of 10 themselves at him. Whats central at what kind of stability is we currently looking at here, sometimes to fail after a few days over. Sometimes they last for years. Literally, teen measured a loss of 20 percent and efficiency and just half a year. Other researches in saudi arabia, for example, came up with similar results. For comparison, it takes silicon solar cells roughly 20 years to reach that level of degradation. And number that turned themselves out would need to match the some Companies Say theyve already fix this issue and ready to go to market next. Yeah. Do you believe thats possible . Sometimes here we must also have conferences, but they normally dont show the data. Its all very secret. I assume that david and the next years produce samples, and that is very important to do because then you can test them on your own sites in the future. And before you commercialize them, before you save them to customers whove contest inside. Whether its really true, because its really hard to say about the samples that we have out here of the one year that theyre going to last for 55 years. And until now weve only talked about the technical side of things, but tell them, so lets have another thing coming. If have about skype is going to go anywhere, it will need to be cheaper then press to then or can i request that i set it on a pad well basis. This jenny chase, hes analyzed the solar market for 18 years and found that the solar Analysis Team at blue book. And yes, lets go to be the one of cost po, up, which is currently 12. 00 us of the people and it will be 12 by next year. According to the International Renewable energy agency. Since 2010 costs for electricity from solar have declined, but 89 percent globally, its now more expensive to install silicon panels than it is to make them meaning the limiting factor for solar on manufacturing cost. But grid connection land permits all labeled for installation. It really comes down to the company that sells the cost of the stupid at the fact uh, a mother just to get these into stable volume production will make a lot of money. If nobody does, then solar will still get billed. One company that claims it has sold the degradation issue is ox for a tv. It says together with partners, it comes with the modules in the middle of 2024, and then well have utility scale sort of packs with 10 themselves in 2026 or 20. 27. Looking at today is the efficiency number solar products like that will generate 25 percent more energy then comparable to the console, the parks, solar panels, those have a good rates potential, but theres still a lot of things that need to fall into place for them to work and im really, really curious if theyre actually going to be on the market next year on reading. How did you like the video please let me know in the comments and subtract or tell me what we post the videos on the environment every friday. The lots makes sure it diversity of its resident the commitment to one another, no matter what youre focused into the conflicts own with sim, sebastian president ial elections in russia of the usual full gun conclusion was nothing left to chop. Not even the best in jail as the leading opposition figure. Ill explain about me. My guess is the russian come and take the andre collapsed. We call the economy. He, russian, your agent center in moscow was nevada. Is such a serious, correct . The bluetooth had to be to come success has been 60 minutes on d w. The asked about why does that because now im leaving the new host to join us for an exciting exploration of everything in between. This is a video and audio production 5 d w. I hope that you will tune in the hello and welcome to focus on your of thank you for joining us today. My name is liz, sho, russia is intensifying. Its a tax on ukraine, which is the cause of tension in neighboring finland. The country shares a long border with russia and joined today to last year and security among the finish population has been growing even in the capital city, helsinki. Finland is prepared