How Quantum Dots Solar Panels Could Change Everything
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- Опубліковано 27 вер 2024
- How Quantum Dots Could Make the Most Efficient Solar Panel. EcoFlow DELTA Pro 3: undecided.link... Register now on @EcoFlowTech's official website to stay tuned on the upcoming EcoFlow DELTA Pro 3 launch livestream and receive user benefits worth up to $3,000! Don't miss out! Tune in to the global EcoFlow online product launch event at 19:00 (PST) on June 24. Ever heard of a quantum dot? What about an artificial atom? This is a real piece of nano-technology that has the potential to revolutionize fields like medicine, consumer electronics, and especially solar energy. Quantum dot technology has been in TVs for years, so why isn’t it already in solar panels? Well, there are a few challenges. If we can engineer around these challenges, then these little devices could have a BIG impact - breaking the limits of our current solar panels, and ushering in a new and radically more efficient age of solar energy.
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An LED is a reverse Photovoltaic cell.
Shine a light source on an LED and attach a voltmeter to the terminals of the LED
wait until you learn zero point energy
@@caojidan8913 Zero Point energy has been known since Planck introduced it over a century ago.
It was Casimir who actually measured the zero-point field strength using two parallel plates in about 1948.
So when the temperature of a physical system is dropped down to the theoretical limit of absolute Zero (ie 0 Kelvin) the kinetic energy of the particles is zero because motion has ceased. The energy of the system is not zero however due to the zero-point energy.
Nature is continually spewing out surprises and the odd peculiarity.
How the heck does China clean their enormous solar panels? Doesn't a thin layer of dust build up over time make the panels less effective and if so by how much? They are like over building stuff but the enormous amount of resources it will need to maintain it same as their enormous railroads.
POLISH SCIENTISTS/COMPANY GOT THEIR PEROVSKITES TECHNOLOGY VALIDATED :D FIRST IN THE WORLD IF I'M NOT MISTAKEN
One lab anecdote on quantum dot: we were testing different synthesis condition to produce quantum dot, to obtain higher quantum yield (how much they glow if exposed to light).
One day we obtained and incredibly good result, it was not even necessary to shine the UV lamp on the vials to make it glow, it was glowing intensely even with the ambient light from the lab.
So called my boss very exited to show him the result. It was amazed so as usual tried the UV light how much it glow and... it was horrifying. All the chemical hood, all the glass were, all mi cloths... were glowing. The vapors of the synesis solvent were able to carry around the quantum dot and deposit them everywhere. Not even the chemical hood was enough to protect us... but we were a Startup with not enough money for a glove box :D
That is no doubt terrifying, damn. We are usually expected to trust that the hoods are unbeatable, but this almost sounds like the start of an horror story.
@@danilooliveira6580 a basic chemical hood it protect you from most part of the volatile elements evaporating from you chemical solutions. So perfectly adequate for most chemical lab operation with substance that are dangerous only at a certain concentration in air. But it's not a total barrier. So do not used for bacteriological danger (COVID or zombie virus :D) or in this case, nano compound. I worked in other labs in my PhD and after there we had chemical hood with an additional air blade protection. But also operated sometime with complete coverage and mask, in a room with abundant air purification system (and a sealed purification pre-chamber to enter the lab), in addition to the chemical hood. Or with Glovebox. There substance were in a completely isolated and sealed environment (and also in inert atmosphere). But in that case... it was not only to protect us from the substance but the other way around. To not contaminate sample and devices we were producing. A clean room for nanolithography. Quite nice experience.
That... sounds like something you cribbed from the opening scene of a disaster/horror movie, to be honest. :grin:
And Then, the transferable strain of COVID walked outside of the cheap lab simply trying to better understand the new strain of SARS they discovered..
So you are saying that you got more output energy that you put in input energy? So... perpetual motion machine? I have doubts about your story. Published Paper or it didn't happen.
Even with existing solar tech, many places will have enough electricity for the night if cheaper storage is available. Storage breakthrough will be a game changer.
it already is.. elon proved it many moons ago
@@dertythegrower We are still using old tech in batteries. Size and Price needs to come down before widespread adoption happens.
@@dertythegrower They are not eco-friendly.
Agree that storage is key. We have batteries and we never buy power from the grid when the rates are high (M-F 3PM-9PM). Instead, we sell power back to the grid at a high rate. This generate/store/sell cycle has largely eliminated our annual electric bill. We also earned about $200 in a check from the power company. In addition, the batteries provide backup in case the grid drops.
@@JohnDir-xw3hf Compared to what? Oil gas and coal? Batteries are miles better than those, despite intense oil industry propaganda trying to confuse the public on this.
Compared to nothing? Sure, manufacturing something has a footprint.
The point is how far we can go with that footprint, and batteries are miles better than status quo when all is considered. Batteries in cars, for example, can go a million miles per pack without spewing toxic gasses around our streets and into our lungs, same with storage.
As an amateur microscopy enthusiast I’m fairly well acquainted with the µm scale, so that size comparison was really helpful to understand how small we’re talking.
Same size scale as viruses.
@UndecidedMF-rts Go. Away. Scammer.
Thank you for the explanation. I grew up in a world where I could take apart most "high tech" and understand how it worked, even as a kid. When electronics hit the market a few courses brought me up to speed. 45 years later and I've entered a world of black boxes. I can usually make them work but, like a monkey, know just enough to hook them together. Then there are these new technologies that are mind blowing. It's like we've returned to the early 1900's, when the horseless carriage was introduced... but across all fields. But this time, it's all "black boxes" given to us by wizards.
Worth to mention that Poland has launched a factory that produces perovskite flexible solar panels, sauletech 😊
I guess we finally figured out how many polacks it takes to change a light bulb
Could a semi translucent quantum dot sheet be laid over an existing PV sheet, so you could essentially "upgrade" your existing panels? 🤔
Maintenance nightmare waiting to happen. You would have to connect that into the circuit by soldering into it... The labour involved is not worth it. Curious what a "quantum dot sheet" would cost. DIY things always tend to be marked up when they are highly desirable.
The transparent part is totally easy. They are only absorbing light with higher energy than their colour and let the lower energy pass. So yes, it would be theoretical possible to add a layer of orange, yellow green or even blue particles on top, as the standard silicon solar cells are in the "red" energy range. The problem is probably contacting the new cells and sealing them on top of the old ones. I guess it is easier to just build new panels and seal them together
The junction loss from changing materials with a cover sheet should be small enough to allow an upgrade at least 10 percent to the total output.
@@jimspear3033 you mean increase by 10% or add 10% points? I doubt the last one because single junction quantum dot cells alone have just reached 12% efficiency in the lab. On scale it is normally at least 5% lower. Add the losses for the lower cell and you can be glad if you added 10% efficiency.
This can be done through retrofitting the solar devices with semitransparent layers (such as PMMA or EVA) which are doped with quantum dots. However, their stability tends to be a limiting factor in the longevity of the additional layer.
Keep the videos and podcasts coming. I throughly enjoy listening and learning.
Thanks so much. So glad you’re enjoying them.
I have limited anecdotal experience with Microdots.
Noooo. Quaaantuuum dots. Thanks for the laugh!
Microdots, wow that's taken me back a good 30 years, had forgotten about them . Them, and green pyramids - little lego looking things. 🤪
Peace pot microdot
😂🎉
Best comment
I love how balanced your reporting is! Thank you for another great episode!
Fun fact 1: French artist George Seurat used billions of quantum dots to paint a portrait of Erwin Schroedinger’s cat.
I've done a few micro dots over the years, this one sounds even better
Sign me up 😂
It was your earlier solar panel videos that originally brought me to this channel, so I'm always fascinated with new developments.
I remember reading about Quantum Dots developed at Los Alamos National Laboratory… for some reason I remember they could also be applied to existing windows, like applying a film…?
certainly you can make quantum dot solar cells to fit any frequency of light you want to harvest. Instead of reflecting UV and IR, you could turn that energy into electricity and allow the visible spectrum to pass. The economics of that may or may not be practical.
We already use Quantum filters in TVs. The technology is already here.
With both multi junction and quantum dots, the theoretical efficiency jumps to slightly over 80%.
This obviously drastically reduces the area required to produce the same wattage and leaps solar far past wind in efficiency per area covered, even in northern latitudes.
Undervoted.. ❤
I'm also hopeful that quantum dot technology will make its way to the solar sector. The biggest challenge they currently face, that Matt pointed out in the video, is their apparent degradation in sunlight exposure. This makes them no more appealing than a novel technology with the current physical limitations.
If they can figure out a way to make quantum dot panels last a long time in sunlight, and use as little toxic material as (or use no toxic materials if at all) possible in the manufacturing process, then I think quantum dots have a shot at drastically changing the solar landscape.
@@Xeadin101 That is not nearly as much of an issue for III-V quantum dots due to their strong covalent bonds, With InN, we can actually get functional devices with concentrated sunlight. Matt ignored the most promising quantum dots in this video. I founded a nanotech startup focused on solar applications of III-V quantum dots in 1998 and made a functional optical sensor based on materials we had produced in the Wells lab at Duke. We made the world's first III-V quantum dots back in the late 80s, and my nanotech startup took that almost to the point of a solar breakthrough before the company died in 2009.. The biggest challenge for quantum dot solar cells is solving the carrier transport problem. That is why Quantum Dot Corporation went belly up... we came up with a solution but never had the chance to prove it... we were decades ahead of our time.
This is true. But what's much more common are all the fluorescent inks (highlighters) and high visibility safety gear we've had for decades. They do the same thing in principle: converting a short wavelength photon (UV) into longer wavelength photon (visible light) compatible with our eyes. Thus making these objects appear much brighter to us.
I'm imagining if this quantum dot (QD) stuff is perfected for cost and longevity, it could also be sold as a translucent roll you can buy off eBay and retrofit onto existing solar photovoltaics to get extra power out of them!
Yes, he said that on the first 30 seconds.
66% 😮 This world is truly awesome! ✌🏻
Imagine the roof of your garage charging your electric car for nothing
Very interesting video as Always, great job and thanks for keeping us updated on the tech breakthrough Matt !
One issue to keep in mind about quantum dots is that they are nano particles and can be extremely toxic if inhaled. This should not prevent their use for solar panels but it does mean that controls must be in place to make sure some company does not end up contaminating a large are with toxic nanoparticles.
Idk if youre trolling
But if not, that was covered towards the end of the video
@@Oh_So_Based You are correct. Like many viewers I had not watched to the very end. I seldom do. The problem with quantum particles is that they can creep into the environment and stay there. This goes beyond what Matt said in the video. It is not just what quantum does are made of. It is that they are so small they can get pass through membranes in your body that would block larger particles. They are a bit like a one dimensional version of the nano fibers that are slicing through this ship in The Three Body Problem: ua-cam.com/video/Yxetv-xbazs/v-deo.html
Matt, your breakdown of quantum dot technology is top-notch. Loved the optimistic outlook on quantum dots in solar energy.
As many people may have pointed out already, the intermittency problem of solar panels would likely get solved with existing technology and more energy storage.
However, massively improving effectively with technology like this could make automotive solar panels even more viable
for many rooftops (esp outside the oversize houses in the US), the current efficiencies are not enough for 24h of power generation during the daytime, so storage is not the only thing needed to solve it. same for further away from the equator, too.
so this tech would matter a lot for home installations, too.
@@davepermenInteresting you bring up areas further from the equator, I actually live in Alaska, and there is A LOT of solar up here because of the long days. Interestingly, a lot of panels are also mounted on the sides of buildings because of the high latitude.
The more efficient solar panels would absolutely be huge for the winter though
Creating a photon vortex quantum dot, perhaps.
Hey another way to use quantum dots is the shape theme into other structures for specific uses such as GES Grid Energy Storage!😮
A simplified way to understand why changing the size of a Quantum Dot changes the color of light it interacts with. Light, well photons, have a frequency, the same way sound has a frequency. Like sound, the length (well distance) that the photon wave covers is based on the frequency. Higher frequencies have waves that cover a shorter distance. This means that materials that interact with photons can do some funny things when their size perfectly matches up with the length (or the half-length) of the photon wave. This means that a photon's frequency changes both its wavelength and color. Because of this, Quantum Dots interact with different colors at different sizes.
Basically, the size of a Quantum Dot changes the color of light it interacts with the same way that the length of string on an instrument changes the note it plays when plucked. The same string at the same tension will play a different note if you change it's length, something guitar players are very familiar.
I remember reading about quantum dot solar in the early 90s... Current factory gate prices for solar panels are $0.05/W in China, $0.10 delivered. Even US produced panels are $0.18/W at the moment. $0.80 per Watt is the utility installed price, not the panel price. Even consumer prices of Chinese panels are $0.16/W in the UK. $1.00/W is quite high.
Yeah in the UK the government decided to bind renewable energy price caps to that of fossil fuels so renewable energy costs to the consumer have rocketed as the unit cost of energy is basically driven by gas. Add that to production and material cost increases due to brexit.
No.. no you didnt
Making your own things is harder when asia has welfare handed out like gold fish.. look at byd, they copy elon and get 3 billion to lower prices to be able to compete.. most dont realize that
@@dertythegrower no I didn't what? Quantum dots were first made in the early 80s, and their application to solar panels was obvious back then. It wasn't until we found out how to mass produce them in the early 90s that people started taking it seriously and writing it up in popular science magazines.
This account of quantum dots has shrunken my list of quantum question marks. Thank you.
Think about LED light. It took over 40 years to go from the use of a diode in electronics to producing light. Someone somewhere had an eureka moment. That will or might happen with this as well!
Ultrabright LEDs, the source behind LED lighting, took about 15 years to perfect, with a lot of the work spearheaded by Phillips. It wasn't a matter of finding the right idea. It was a matter of the engineering work to keep ultrabright LEDs from killing themselves with their own heat output, and to bring the cost down. But even before then, the tungsten filament lightbulb was already being obsoleted by compact fluorescent technology, and again, cost was becoming the deciding factor in the technology switch.
@@jscotthamilton5809 Thanks for this output. I have not been an enthusiastic buyer of fluorescent lights using mercury that would end up in landfield. It took a long time to come up with something else than 'daylight' or 'cool white' which is not cool at all. Now there are also 3000K tubes that provide a light closer to halogen. But LED are way more superior in energy use and variety of spectral lighting.
If you want a deeper dive into QDs I highly recommend Techaltar's "I made TV colors from scratch!" video where he actually creates Quantum dots, it's surprisingly simple 😁
It is especially exciting because the tech also have consumers electronics’ interests. QD lcd panels with miniled, QD oled and self emissive QD panels in the future. Samsung, sharp and a few others have just showed cadmium free self emissive QD display at computex.
There is no “ breaking the laws of physics.” Either the laws hold, or they’re wrong
I am inclined to agree with you.
For after all our current understandings of the laws of physics is based upon what we have theorized and discovered. Meaning it can and will change and has changed over time, with improved to research and technology.
What we need is more efficient electronic devices. A fridge freezer that runs on 100watts. A toaster that works on 500 Watts and a electric cooker that when turned up full uses max 1000watts. Once this is achieved existing batteries will last days not hour's.
Thank you and good morning!!!
Good morning!
Excitons (electrons bound to holes) are neutral so making more excitons does not directly increase current or efficiency. Excitons might be separated by lower energy photons or (occasionally) a phonon (thermal energy). Excitons might recombine and emit a photon that then liberates a pair (electron + hole) in a narrower band semiconductor. Two excitons might collide so that one decays and donates its energy to separate the other. Or excitons might migrate to a narrower band semiconductor to spontaneously separate into pairs. Semiconductor quantum dots can easily be tailored to absorb photons with specific energy that liberates an exciton. By mixing quantum dots to absorb many wavelengths across the spectrum, we can greatly increase the absorption of light. Efficiency will then be increased if those excitons can be used to liberate more electron-hole pairs within a pn junction.
True! using quantum dots to absorb photons close to their bandgap energy will give the greatest efficiency. Victor Klimov proved multiple carrier generation in quantum dots, paving the way for more efficient use of one variety of dots, but a plurality of dots will still beat that approach if they can be matched to the appropriate wavelength of light. One approach we proposed many years ago was to use diffractive optics and solar concentration to make super efficient solar cells based on Q-dots. The idea was that we could print the q-dots in stripes and lay the rainbow pattern down on them such that each color hit the appropriate bandgap dot. using III-V dots, we avoided the stability issues and allowed potentially higher efficiency by using concentrated light. This approach also had some significant advantages for wiring etc, since you did not have to have the entire absorbing surface active... most would just be cheap optics directing concentrated light to the active regions.
Excellent and effective presentation on Quantum Dots. Gerry
Maybe we will see this in 10+ yrs😂
Matt should change the name of this channel to “Decidedly 10 years away”
yes i agree with you but if it does even in 10 years its great for humanity a lot less pollution lot less global warming especially since they would literally save you money over electricity now
QD-OLED screens aren't all sunshine ether. They are prone to something that looks similar to burn in. Newer TVs have methods of avoiding the burn in issue. Easier than Solar Panels for sure though.
I could type out all the details but I wrote a huge paragraph that no one would read, just look it up if you are interested. It isn't actually a burn in, it just looks like burn in.
I don't think is going to lead to any massive technological breakthrough's however if they can get it working commercially? So much the better for us all... Kind of like how I feel with both fusion and fission SMR technology... Skeptical but cautiously optimistic as well!
A team at the Ulsan National Institute of Science and Technology (UNIST) developed organic cation-based perovskite quantum dots (PQDs) using an alkyl ammonium iodide-based ligand exchange strategy. This technique has boosted the efficiency of PQDs from 13% to 18.1%, demonstrating both high efficiency and long-term stability, retaining performance after over two years of storage The integration of QD and perovskite technologies has been pivotal. Researchers have created solar cells that achieve a photoelectric conversion efficiency of 23.74% by enhancing the alignment of energy levels and the efficient collection of electric charges through the unique properties of quantum dots (Tech Xplore).
Man, I hope schools these days have an explanation for "quantum" stuff somewhere in their curriculum. The term "quantum" is very overused considered how little the general population, me included, understands what it means.
It is taught often, on mainstream networks
While that is true, this is not an example of that. These are called Quantum Dots because they utilize quantum effects that cannot occur on the macroscale. In this case, it is literally descriptive.
Like AI, Big Data, or anything you can create buzz with
I was in the same position, even though I actually used quantum dots a lot in some molecular biology work. I finally started learning about quantum physics on UA-cam. I think it is also important to learn a field like quantum physics by going through the history of the discoveries that led to technologies today.
"Quantum" is pretty much synonymous with "smallest".
So basically smaller than atoms.
I've been hearing about Quantum Dot solar technology for 17 years by now. I don't think they'll come to fruition during my lifetime. 😔 I hope that the younger generations alive today will eventually get to live in a world with highly efficient solar cells though.
Can’t wait till my roof is 60% cooler from being covered with quantum dot technology with all that extra energy going into a solid state residential battery!
Great video Matt! I've always heard of quatum dots for new TV Displays, but hadn't thought about their application in solar! If we can figure out a non toxic long lasting blend, it would be such a game changer!
we figured that out back in the early 2000s
What about the silver, indium, galium panels used in space. They highly efficient and can be made for about $0.25 per watt.
they also do not have the planet's atmosphere to contend with, unlike down on the ground..
I have been waiting for these panels after I heard they could use what they learned making LEDs from quantum dots to make panels as well.
I hope this makes OLEDs cheaper, those $1,000 price tags are oof.
you know many "insert any 💩- could change everything" i saw on youtube?
and surprise, everything didn't changed. mind blowing
You know how many people who love making posts just like this are proved wrong again and again and again? And don't like having it pointed out that they're ignoring the actual information in the video? Millions. Mind blowing. Knuckleheads can't be stopped.
I can't wait until we start seeing a combination of these technologies, and other ones you didn't touch on. I'm super interested in the upconverting QDots being researched right now. They can take in photons of lesser energy (IR is as low as it goes right now I believe) and pump out higher energy photons. So IR goes in, and visible light comes out. Some day they might be able to go down into microwaves, or radiowaves.
We always visualize solar cells as flat. I have heard of some having ridges or the like to increase surface area, but the max surface area can come from tubes because of internal reflection like an optic fiber
@@swipekonme that's also my thoughts they can alter the desigh of solar panels like cones,tubes, spheres shape to absorb more light
MEG is really really really hard to do. Need correct band structure, correct size, correct phonon modes, and the material should be stable. It's very cool and worth studying, but I'm very pessimistic it will leave the lab.
Fun fact 2: If you stretch a metaphor too far, it metamorphosises.
It might cost 1$ per watt to make, but my 400 watt panels for 13 of them installed cost over 30k usd installed. Another topic not talked about here is inverter or micro inverter efficiency, which affects panel performance. The short of it is you get significantly less output than you paid for In panels.
Imagine using quantum dots solar panels in shade of multi-substrate solar panels. We have been having issues of stacking solar panels for a decade, this might work.
This is the first explanation of quantum dots that I understood
Awesome! I learned about something similar to quantum dots, last year, regarding an impressive Barium Sulfate paint that has remarkably high emissivity to prevent heat transfer.
It's non-toxic, the materials are widely available, and with a bit of precaution, can even be produced at home. Essentially, you make multiple solutions of barium sulfate with varying sized multi-micron spheres, similar to the quantum dots. When mixed together, the different sized orbs have a sort of exponential fractal effect on energy attempting to pass through it.
For any interested, I learned it from the youtube channel "Tech Ingredients" in a video called:
Revolutionary Paint: How to Make Surfaces Stay Cool in the Sun
I forgot to mention, this is also why Opals have such brilliant color changes due to the different sized silica particles causing different wavelengths of light to reflect off. Similar to the ranbow assortment of quantum dot jars shown in this video.
In the future, we'll grow crystals that are essentially super-efficient solar cells that can absorb more than just UV and we'll use CRISPR, and DNA from a glass sea sponge and a specific fungus from Fraser Island, Australia to do it :)
Wink
Fungi rule the world we live in
What we need to develop is direct energy conversation from heat to electricity thus solving two problems with one solution if the band gap can be tuned or a material created that cools things and makes power the world could change
en.wikipedia.org/wiki/Thermoelectric_effect
@@JamesJohansen the issue with that is the heat is simply moved this does make a small amount of power similar to steam yes it makes power but the heat is still there
@@ChrisJones-qo8le thermovoltaics is essentially half of the process you describe. it is the direct conversion of heat to electricity not the movement of heat.
this has been known for a very long time...demonstrated decades ago. in my area of specialty, Indium Antimide is commonly used, but there are many semiconductors that can be used for this purpose.
11:43 Ayyyy thats my university. Thanks Matt for mentioning.
These could be a game changer in specific applications, such as solar powered vehicles maybe, but usually I'm under the impression that we have enough space for adequate amounts of solar panels. I'm more looking forward to innovations like sodium ion batteries.
Very cool to see a video on this. I actually make quantum dots at home.
I love your channel and your videos. I just wish a lot of this tech could come to market in my lifetime
How small modular nuclear could change everything?
How liquid green hydrogen could change everything?
How graphite could change everything?
How cold fusion could change everything?
Graphite did change everything. The pencil was a revolution in a world of quill pens!
@@michaelmartin9022 Here's your gold star for missing the point and being proper pedantic, well done xx
⭐
Getting solar panels to over 30% efficiency is going to drastically change the whole energy choice debate, that will be meaningful power even in winter.
It sounds great. But in many areas of the world that's still not a lot. There's just not enough sun. And it's not going to be cheaper than big wind ($/real watt) which is a much more low tech solution we have today. ☹️
@@DizzerJoz You think wind is cheaper and lower tech than a solar panel with no moving parts? Sure there are parts of the world where there isn''t enough sun but I'd of thought it would be at least 60% that is and the extra efficiency of newer panels will increase that percentage substantially..
The most important thing with solar is the price for the amount of energy produced. Doubling efficiency is nice, but not that useful if it more than doubles the price.
If quantum dot solar cells generate electricity using infrared radiation, couldn't these also be used to recapture waste heat (aka blackbody radiation)?
Great. Another revolutionary solar panel that will revolutionize the solar charging industry, at least on paper. I'll go ahead and add it to the other pile of revolutionary solar panels that never came out.
Wow, this is going to be HUGE!
Like when IBM figured out how to manipulate individual atoms and they revolutionized the data storage industry, such that we can now store petabytes of information on chips smaller than postage stamps!
Or the method for turning skin transparent, that lead to huge medical breakthroughs in diagnosing so many ailments.
And the paper-thin flexible screens that we have to thank for all the animated pages that you see in every magazine.
And the unbelievable new form of concrete that's twice as strong, but half the weight of regular concrete, which has lead to so many advancements in the field of architecture!
Yes sir, this is going to change the world!
Sarcasm?
@@YourCapyFrenBigly_3DPipes1999 Since I've been paying attention to such things, I've seen more things than I can count that were going to "revolutionize" one field or another, but yet the promised breakthroughs never came.
My father used to get Reader's Digest, and many years ago, I read an article about a "revolutionary" new treatment for heart disease. Rather than a transplant, or trying to use an artificial heart, it involved attaching a small, external pump to take the place of the heart for a limited time, while the heart was disconnected and allowed to rest inside the body, not doing any pumping for a month or so. Supposedly, this allowed the heart to heal, so that when they hooked everything back up, the person was no longer in need of a transplant. It was going to help SOOOOO many people who would otherwise need heart transplants. Fast forward 30+ years and you don't hear anything about this being used today.
Or there was the platform that could be suspended from a helicopter and maneuvered somewhat in the air with small propellers on each side. The purpose was to be lowered down to the upper floors of buildings that are on fire, so people could be rescued without the limitations of trying to reach them by ladder. Gee, seems something like that might have come in handy back in 2001...
Yes, breakthroughs DO happen, but any time I hear that something is going to "revolutionize" a particular field, I mostly just roll my eyes.
What was the last invention you remember that actually lived up to the hype of being revolutionary?
what this video wants to say is ,overspec your solar electronics to prepare for these solar cells
Quantum dots work by applying the power of the word quantum to make SCIENCE!
I remember when OLED was proclaimed to be the low cost answer to a better TV. All of that promise when to profits though when marketing made it a premier product to have.
The first OLED TV I heard about was a small one for £2000. Today I was wandering around a shop (Currys) and there was a mid sized OLED TV for £900, and that is _after_ the ravages of inflation we've recently seen. All new tech takes a while to commoditize, and filter down market, but I don't think OLED is doing too bad on that front.
Ecoflow battery/inverter has fan cooling so it is not silent.
I basically like the EcoFlow and can see many uses for it. But for home backup I wish it came with a much larger base capacity. 15-20kWh or more.
So... Christmas lights are about to become completely wireless and awesome. No more tangled wires.
I discovered long ago that scientists/developers discovered that the efficiency of existing panel technology could be improved to 60, or even 70%, by copying nature.
As in the tracks that capture the floating electrons, if the design of the panel, are like the ribs of an trees leaf.
Why did we never see these panel's in the 1980's. Complexity and cost of production made it unviable.
It seems to me that no matter how efficient we make solar cells, the advantage will be that we need fewer cells to generate the same amount of power and that's a big deal when it comes to area. However the limiting factor will always be battery technology because no matter how efficient the solar cells are if we have no way to store the energy it goes to waste.
Not True, excess energy can be sold to the grid, where it can be used by others?
@@hannaht2068 How are you storing that excess power at the grid level? Batteries like the above said? Nope, because they are in the same boat, they can only store so much as well let alone the money to install them. You also have another problem, Solar is intermited - meaning just because you produce power, doesnt mean the grid will want/need it thus your only use will be to burn it off as heat, and because it might not needed it at that time, the grid still has to provide power when you dont provide it, thus it still has to have a base load it most also hold on to. Aka, what the OP said is true, the only real way to make use of more solar is to have some method of storing that power so we can use it at any time thus lowering the base load needed from the grid and over all allowing us to use more solar at any time of the day.
Cannot wait tp have my cybernetic implants covered in quantam dot solar panels
Drives me crazy always hearing year after year after year about so much potential into major solar innovation and yet till this day it's still not really good enough yet to really make majority of us want to make the switch to solar. here is to hoping there is a breakthrough soon.
Why do you he keeps shilling this? He found a money glitch
Please cover agrivoltaic double sided solar collection suspended above crops to reduce water use and shade plants…while collecting electricity.
So roughly 2x the w/m2 of current technologies bring it on
There’s a British company called
Nanoco who produce non-toxic cadmium free quantum dots and own a lot of IP in this area. They were spun out of research at Manchester University and their technology is used in Samsung TVs.
Yes, after Samsung stole Nanoco's IP and had to be sued by Nanoco to get some compensation.
Thanks for sharing Matt.
Original GTA 'wasted' screen, I love it! 😂
wonderful video. thanks for the learning.
I always find your channel very interesting and informative. Though I do not understand everything about the quantum dots. I do understand their potential, however, I believe we are facing a monumental energy shortage in the future and am really concerned about where this energy will be coming from in a future, which is getting here rapidly.
Two things.
First, "zero dimensional" does not refer to the size. It refers to the degrees of freedom with the particles (electrons and holes) in the quantum dots. The particles are confined in all directions (x,y,z, that is), and that is why the quantum dots are "zero dimensional".
Second, quantum dots are absorbers of light, but the electrons and holes in the quantum dots are not "free" to be easily extracted out for power extraction.
The content of the video has a lot of holes...
in practice you get quantum confinement when the physical dimension of the particle is less that the exciton diameter/ Bohr Radius of the material they are made of. Getting the exciton out is the key trick. Quantum Dot Inc. went bankrupt trying to solve this issue. In recent years, folks like my friend Tom Meyer have developed ballistic transport mechanisms that are orders of magnitude faster than the recombination rate. That way the charge carriers can be removed from the local environment before they recombine to emit a photon or undergo non-radiant recombination to produce heat.. this is the key innovation leading to the potential production of solar fuels from photoelectrochemical cells!!! a much bigger deal than even photovoltaics.. this technology has made great strides in the last couple decades!
Nice, looking forward to performing and experiment on a project with this item
I want to know how does a quantum dot connect to the surface of the solar panel and how are the electrons conducted.
I have a quantifiable experience with Dippin Dots.
The lifespan thing is an interesting sticking point - to me the big question is how ready are we to recycle them and can it be done for cost that keeps the technology as a whole competitive. In other words, if you factor in the recycling costs to the payback period for panel, how does it compare to a conventional panel? On the other hand if we're not sure if we know how to recycle them, maybe we don't go full steam ahead with them anyway.
It seems like issues will be solved more way or another.
I wonder what one of these hundreds or solutions we will see in 10 years.
Only a certain amount of sunlight falls on a given area. Even if your solar panel captured that energy at 100% efficiency, that's the limit. You can't get more than 100%, and at night, you get 100% of nothing.
Quantum dot solar has been the hype for more than 20 years now. I was invested in it back then, and it didn't work out. So it still leaves a bad taste in my mouth when I hear about them. It's good that they made some progress, but I lost faith.
And the most efficient QD's are actually tetrapods quantum dots. The theory sounds great. Hope they can make it work one day, because cheap printed solar cells is still the dream. Especially because QDs can also generate energy at night, in the infrared spectrum.
because you are the only guy who does it, it must be true! bahhaha, you failed and others didnt.. thats called jealousy buddy
were you one of my investors at NanoLume?
@@JamesJohansen No, QTMM. Tuned out to be a complete hoax. Luckily I didn't lose too much, but still regret not selling on the high. That would have made me a lot of money, but I held, and then it only dropped, for years.
Their tech was very promising, but I think they never got their microreactor to work.
Up to infrared is cool (hot?) 😊. More juice, less heat. That's awesome.
why not small glass prisms to split the light.
It sounds like quantum dots would have a good start in less demanding environments, like indoors.
Polish company ML System has quantum dot PV glass for years now...
If you can harvest in the infrared range, does that mean, by virtue of converting that to electricity instead of heat, your panel might stay cooler?
we as the new species are just learning about this anicent technology . think about the things they are not telling us. wonder how far this experiment will last until they have had enough.
This could be a big improvement IF the problems can be solved.
I think that my startup is doing better with quantum energy harvesting. Our tailored-made wireless and cordless quantum devices are able to work autonomously and with high power delivery. Also, we can meet centralised and decentralised architectures requirements.
How about a solar powered Stirling hot air engine?
Low maintenance, easy to build and reliable.
Ah, quantum dots. You drip melted ice cream into liquid nitrogen and then observe it really really closely.