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tv   Planet A  Deutsche Welle  April 4, 2024 8:15am-8:31am CEST

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the taiwan lies on a fault line. the island is used to quakes view in recent history, have been the severe more than a 100 after shocks have already been recorded. you're watching the day, but you knew it's coming up, play a looks at possible a possible game changer for solar energy. thanks for watching the sometimes the show, right. how that you out to the highlights for every week? not to not cost about why does that mean? because like now i'm liza the new
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join us for an exciting exploration of everything in between moses video and audio production 5 d w. i hope that you will tune in this tiny solar. so my thing about the revolution i, solar energy, as we know it, it's more efficient than a stand that silicon solar cell can be easily synthesized and doesn't need to be mind like silica, as it can work on in the field. so you probably as not how speak up, 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 . but why would you believe this all the cells? well, for sconces, the regular photo sales, you know, i made with silicon and they actually quite inefficient at converting some light
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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 $1000.00 degree celsius of heat. if you want to know more than this, we have a full video on that here. but a new interior, the cold, corrupt cards 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 they've been researching, perhaps cards as sign up solving materials for about a decade. hey, how are you today? i'm good. and this is the guy in charge of the research and steve, i even said world records for the most efficient pearl skype, solar cells. so on a very basic level, what does perhaps kind of look like the temper off guard is a very generic term for a specific crystal structure, right?
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you can see that here over there. so the crystal structure has the 80 x 3 formula. and like each component is the sort and i the element for molecule. one of the most common combinations in the 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 ex, which foam around the metal. but there's quite a vast range of materials that can be used and combined. and it's quite wild how easily these can be put together. oh, this is 11 fine and but before we do that security 1st as we are going to up with toxic flat with one of the oh that's good to go. look at it. like i mentioned that in okay, time to get in our base materials. matthew mixes, methyl ammonium, chloride, and let i o die too late to create or abs for you. crystal structure, by the way,
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everything happens in these boxes so that no water or oxygen comes in contact with our precious peroxide. 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 doesn't require much energy. so it's easy to do. everything is relatively abundant. and so it's, it shouldn't be a bottleneck 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 his son up? so being terrell skype out of it. so i deposit uh the solution of prostate and then
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it spins up quite fast. so something like, uh, 4000 revolutions for, for a minute. and then i dropped on this patient and that drives the, the crystallization. the method that matthew is using his cold spin coating pearls kind solar cells can also be directly printed onto surfaces using similar processes to those useful printing newspapers. another method is if that parades in perhaps guides onto surfaces, spend coatings usually takes place in the lab environment and can be tedious. matthew accidentally dropped the glass, not a big problem in the lab 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 onto a heating plate, and the darkening shows us that the crystals are being formed. it works the same
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way as when sold water evaporates and you start to see the salt. there are sales like this one here which are only made out of rough guide, but in many cases there's a silicon layout beneath. so of 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 balance that it 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 measure 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 soul on spectrum. either this all sounds, they channel this back from the parent skype. so also in this case,
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makes use of the visible wavelength. so everything which we can see by i, it's been converted into pay arrows got installed on sale into electrical energy. whereas the infrared light passes through the peril sikesdale and he's been converted into silicon salsa which is quite deficient, converting in for red line. so they share of the spectrum in each cell is very efficient and the reason it doesn't 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 of salt con by any of these tendons. so yeah, because before they go into serious productions, the normal stuff that needs to be a major issue is the stability of paradox caught structures using 10 themselves. pearls kind structures easily put together at low temperatures as we saw earlier, but they also come apart easily. even the charges that tremble through the pearl
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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. it's a record breaking efficiency. this whole process is called degradation, which researches and companies are trying to fight with different forms of m calculation. it's 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, the oxford 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 haven't published verifiable data yet. that also isn't even
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a lot of research on your world outdoor tests, and these are a lot of so that you test. yeah. wow. this is colleen liberty ac overseas. the degradation tests of 10 themselves at him. what's tensile at what kind of stability is we currently looking at here? sometimes to fail after a few days old. but 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 some companies say they've already fix this issue and ready to go to market next. yeah. do you believe that's possible? sometimes here you must also have conferences,
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but they normally don't show the data. it's 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 p to fuse. and before you commercialized them before you save them to customers who contest inside, whether it's really true, because it's really hard to say about these samples that we have out here of the one year that they're going to last for 55 years. and until now we've only talked about the technical side of things, but tell them, so let's have another thing coming. if have about skype is going to go anywhere. it will need to be cheaper then press to then, or request that i set it on a pad well basis. this jenny chase, he's analyzed the solar market for 18 years and founded the solar analysis team at blue book. and yes, that's going to be the one a cost po, up, which is coming to $12.00 us cents per well. and it will be 12 by next year
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according to the international renewable energy agency. since 2010 costs for electricity from solar have declined. but 89 percent globally, it's now more expensive to install silicon panels than it is to make them meaning the limiting factor for solar on manufacturing costs. but grid connection land permits all labeled for installation. it really comes down to the company that sells the cost and stability fact. uh, a mother just to get these at the 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 tv. it says together with partners, it comes to the modules in the middle of 2024, and that we'll have utility scale sort of packs with 10 themselves in 2026 or 2027 . looking at today's efficiency number solar parts like that will generate 25 percent more energy then comparable to the console, the parks, solar panels,
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those have a good rates potential. but there's still a lot of things that need to fall into place for them to work. and i'm really, really curious if they're actually going to be on the market next year on reggie 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
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to all loud climate problems to fit your thoughts on the topic. breast of those channels, we've got new videos every friday tried to plan. it's a the most female founder's main priority isn't becoming exceedingly wealthy. sure, there are famous entrepreneurs, they've made billions creating dating platforms or begin cosmetic brands. but most one to combat social issues, reducing plastic waste, providing care services, and creating social support systems. let us introduce you to a young startup, founder from germany was making the everyday lives of women safer. also coming up professionals and india, silicon valley climate damage and air conditioning. more space on the train.

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