The solar industry is very, very focused on improving efficiency and reducing the cost. Our attempt here with this research is to propose a new way of looking at these structures and saying, well, you can use existing materials and nothing really needs to change very much. You just shape them in different ways that gives you this benefit. Kirigami is a Japanese art that's related to origami where origami is really about folding of things and kirigami is about cutting things. A colleague of mine who is an artist, Matthew Shlian, he had some interesting.
New shapes and when you pulled on the sheet of paper the cuts would sort of begin to buckle and deform in a very controlled way and so I realized at that point that we could look at that structure as a hyperminiaturized version of solar trackers. Conventional solar tracking has been used for many, many years. The mechanism itself cost quite a bit of extra money. What people end up doing as they say, well, since the mechanisms gonna cost all this extra money. we might as well put a really big panel and then eventually you end up with.
Something that's really big and really heavy. When you think about putting this type of thing on a rooftop it's very very difficult and in most cases is just purely impossible. It was a fairly lengthy process because the things that you do in paper don't automatically translate to other materials and so I started talking to my colleague, Stephen Forrest, about using some of their very high efficiency gallium arsenide solar cells. They're pretty thin, less than 2 microns thick that's ten to fifty times thinner than the thickness of a human hair. What the new design allows us.
To do in contrast to conventional tracking is it basically allows us to work with the same form factor. It doesn't catch the wind, it doesn't weigh any more than a conventional solar panel might and the thing that it buys you is that you can use less semiconductor to gather the same amount of energy. A third less material to generate the same total amount of energy that you would otherwise. Which means that in turn that I could decrease the cost of installation because there are fewer panels to install but you do require little bit of extra area. When you.
Multiply it by the total number of solar installations it's kind of like a billion dollar value proposition potentially. I guess it looks simple enough, kind of like something that you could do on your kitchen table, things don't have to be complicated for them to work. If this can be shown to be quite reliable, then the net benefit could be quite big. V.O. These candies which are already pretty soft should be about 10 to 100 times stiffer than the silicone. So the material that we're working with in the lab is really really soft.
Sticky tape the key to ultrathin solar cells
We are working on a new semiconductor, it's called black phosphorus or phosphorene. Ultra thin, ultra light and also with wavelength tunability which can offer us to fabricate lots of interesting devices such as LED and solar cells. We used the similar away that was used to fabricate graphene to fabricate phosphorene. We use the scotch tape to thin down the material from the box state to a few layers and finally to monolayer. We successfully identify the monolayer bilayer and triplelayers up to a few layers and then we precisely determined the.
Polymer Solar Cells
Music narrator The sun provides a clean renewable source of energy. But electricity is expensive to produce using solar cells compared to nuclear energy or power from fossil fuels. Research at the University of NebraskaLincoln focuses on a solution. Huang The goal of this project is to make a more efficient and cheaper solar cells. UNL engineer Jinsong Huang earned a National Science Foundation Career Award to advance his research into solar energy devices. Huang wants to replace the silicon material used in today's solar cells with polymers or plastics. narrator Huang and his colleagues have designed a new structure that includes a thin layer of ferro electric.
Polymer, a material often used in insulation. Combined with organic polymers and electrodes, the device would generate more electricity at a lower cost. When this labsized device is perfected, it could be produced on a large scale. narrator If Huang can improve the efficiency of the polymer solar cell, the new device could replace the large solar panes atop buildings. And because polymers are flexible, future solar cells could also be pasted on a window or incorporated in fabric to provide a charge for your laptop or warmth on a camping trip.
DIY Solar Panel System Cost
The total of the system and materials was $22K. I ended up spending about another $1,800 in permit fees and a structural engineer and $400 for an electrician, several hundred dollars for a guy to come help me out for the two afternoons he spent with me. Xcel Energy gave me $16,538 rebate. Fix cost based on the number of kilowatts you are installing and has nothing to do with how much you pay the permit office or the electrician. My final cost after rebate was $7,237. I started my research in solar probably about a year before I actually installed it went.
And got a couple of bids from some of the local solar people both from contractors that my friends have used as well as just searching the internet and while talking to one of the guys I find of developed a good feeling from him, and I asked the question Would it be possible to do some of the work myself and kind of learn along the way he said Sure I absolutely support the doityourselfer DIY so I said why don't you throw me bids, what it would cost just come home and have solar one day and what it would cost to have.
It done where I do some or all the work myself. And throw them both to me and I said let's try the second one. The guys name is Steve Cross from Sun Spot Solar. I gave him my electric bills and said this is how much I think I need to generate and he said I agree and lets do these types of panels 180 watts each, you will need some where around 19 to 22 we figured out 21 fit pretty well. So I went and got all the permit information from Golden, filled it out. He came by 12.
Hour one day he type all the Xcel application on the internet and I kind of ran the process and when I had a question I would just send him an email and he helped me out. I think in parallel we order the equipment he dropped off in my driveway. Then one of his installers came out and helped me for two afternoons and I pretty much myself put in the whole rack system on the roof and the installer came out and helped me kind of a two man job carrying the panels up, putting the panels down and bracketing them down.
The Future of Solar Energy is TINY Technology!
The future is huge for tiny technology. Miniaturization is, perhaps ironically, a huge deal. I mean, without it we wouldn't have had the personal computer revolution and we wouldn't have this world we live in now, where we have smartphones and tablets and other devices just as powerful as a computer, that can fit in the palm of your hand. But even these gadgets are gargantuan compared to nanotechnology! See, a nanometer is just one billionth of a meter. And that's kind of hard to imagine, so let me put it to you this way.
Your typical sheet of paper is about one hundred thousand nanometers thick. And at this scale, individual elements are so small you can't even see them with a light microscope. Now as we learn more about how materials behave on the nanoscale, we have more potential applications to use that knowledge practically. I'm talking about how nanotech could help solar panel technology. And fortunately, at a recent meeting of the American Association for the Advancement of Science, or AAAS, they had a panel on just this very subject. Now if you know anything about solar panels you know they have some drawbacks. For example,.
Efficiency they max out at around twenty percent in the field under ideal conditions. They're also rigid, so you can't just put them anywhere you like. And they tend to be expensive because manufacturing them is complicated. But scientists hope that nanotechnology can help address all three of these challenges. Now with efficiency they're looking to nature specifically, moth eyes. You see, moths have these little tiny structures in their eyes that help reflect light back into the eye and it does two things it lets them see better in the dark, and it cuts down.
On reflection so predators can't spot them as easily. With solar panels it could actually make them more efficient by reflecting more of the sun's light into the panel so you lose less in reflection. And when we're talking about flexibility, well nanomaterials are really, really small, and there is the potential to create solar panels that are just a few sheets of molecules thick. They could be as flexible as a sheet of paper, and with that kind of flexibility you could put those pretty much anywhere you wanted to.
And as for price, well, that's the big one. And in the short term I don't think it's going to turn around. But scientists are cautiously optimistic that nanotechnology will let us use new processes, like printing solar panels directly onto a substrate using just a specialized printer. That would actually be less complicated and expensive than traditional manufacturing methods. Now at that meeting of the AAAS, a Dr. Wolfgang Porod gave a talk about Nanoantenna Thermocouples for Energy Harvesting. Which I admit sounds like technobabble straight out of a Star Trek episode.
But it's actually fairly simple once you break it down. A nanoantenna is just an antenna on the nanoscale. These resonate with longwave infrared radiation. And a thermocouple Well that's a component of circuitry that generates a voltage when one part of the thermocouple is a different temperature than other part. So you pair these two together and the antenna generates heat and the thermocouple generates voltage. It could actually help increase the efficiency of solar panels. Now like I said, nanotechnology is a young science and it has lots of different applications.
Across many disciplines. And I'm really excited how such a small technology could have such a huge impact. That leads me to this week's question. When I say the word nanotechnology what do you imagine What does that word mean to you Let us know in the comments below. Then, do me a nanosized favor and share this tutorial with your friends. If you enjoyed it make sure you hit the 'like' button and subscribe to our channel. Then check out these tutorials over here. There's some huge surprises in them.
What are the major types of material PV cells are made of
PV cells are made of semiconductors materials and they can be divided generally in different aspects concerning the manufacturing technology, the energy conversion efficiency, as well as the absorbance light efficiency and so we can divide them in two categories, that are crystalline cells and thin film cells. The more reliable, but less cost effective, are the crystalline cells while thin film are more promising for the future. The first one is divided in monocrystalline and polycrystalline cells. Monocrystalline cells are more reliable and old category and they are mainly performed using the Czochralski.
Method, that is a special and patented method used for the growth of a single crystal and then the single crystal ingot is cut in wafers of 200 to 400 micrometers and these cells interconnect working as a module that can be used for PV or BIPV applications. While the polycrystalline method is different, less efficient and the cells can be ribbon growth or sliced from blocks of cast polycrystalline silicon. And it generates less cost for the modules even if still there is less efficiency but in the market you can find this two different.
Type of modules at the same power and more or less the same cost even if in the monocrystalline case, the efficiency can rise up to 20 while in the second case, the efficiency is around 16 to 17. The other category is the thin film and we have the amorphous thin film that is always silicon but in a disordered structure The thin film modules are less semi conductor consuming, that is the most expensive part of the module, because they are made by deposition of layers of semiconductive material.
On a substrate, like glass or plastic, and it's very cheap. Then, in this concern, we can have amorphous silicon as I said before, or gallium arsenide or gallium telluride or copper indium selenide known as CIS and this one is very promising because the module in the market can reach 11 of efficiency. At the end there are very promising technologies like graphene or organic PV like cotton or oil, also vegetables or fruits. They can be used for different applications and even if they have very low efficiency, the can reach really interesting cost and they can.
Solar Panels Why Paul Chose Canadian ELPS Solar Panels!
Wow, what a view of Niagara Falls! I have several boarders in the house and they obviously use a fair bit of power and it's just generally high! As power goes up or costs go up, I was expecting my power bills to increase quite substantially. My power bills were approximately $2,000 $2,500 per quarter prior to my decision to actually look at solar. Ahhh... firstly I went looking around at different solar companies. I did have a small system put in, 1.5kw system to get a feel for solar. That really didn't even touch my.
Power bill. I ended up looking around and I ran into Michael, Michael Russo. Michael was really good about... he said down with me and actually worked out what power I was using, what power I would need, what sort of panels I would need to actually eliminate that. So it wasn't a matter of looking at cost, it was a matter of looking at reduction of that whole power bill. So it was... coming at it from a different angle that most people do.
They come and say it's going to cost you 'X' to put these in or it's going to cost you 'Y'. Michael looked at it from a different perspective and said, 'Well you're using 60kws, let's put in enough panels to get rid of that 60kws'. I did a lot of website searching and a lot of looking at different types of panels. The Canadian ELPS panels turned out to be one of the better panels that are around. And I was quite happy with Michael and all his suggestions and all the work that he did for me.
Well my understanding is that they... they're efficiency, the amount of power they actually output is greater than a normal panel... than most panels. I knew fully what they were doing today. I was really glad I was sitting here watching when they unloaded the 50 panels and I was thinking... 'You Beauty!'. There's a lot of horror stories as I said out there, that I'm hearing. But I've got confidence in Michael and his team, he seems to have a very good customer service base,.
Has all the information that I needed and I can support that by my own due diligence, in checking up on the internet and all that sort of stuff. Well, the quality of panels... I've checked them out. They've got triple insurance on them so they're covered for any breakage or anything like that, not only by Canadian ELPS but by three different insurance companies. So with this system now, I would expect that I would make quite considerable savings as time goes by and it doesn't really matter how much electricity goes up or down because.
Active surfaces for SelfCleaning Solar Panels
Researchers at MIT and in Saudi Arabia have developed a new way of making surfaces that can actively control how fluids or particles move across them. This work might enable new kinds of biomedical or microfluidic devices, or solar panels that could automatically clean themselves of dust and grit. Most surfaces are passive. They rely on gravity, or other forces, to move fluids or particles. The research team decided to use external fields, such as magnetic fields, to make surfaces active, exerting precise control over the behavior of particles or droplets moving over them.
The system makes use of a microtextured surface, with bumps or ridges just a few micrometers across, that is then impregnated with a fluid that can be manipulated for example, an oil infused with tiny magnetic particles, or ferrofluid, which can be pushed and pulled by applying a magnetic field to the surface. When droplets of water or tiny particles are placed on the surface, a thin coating of the fluid covers them, forming a magnetic cloak. When exposed to a magnetic field , the droplet is pulled toward the magnet by its thin cloak.
Of ferrofluid, even though the droplet itself is not magnetic. Tiny ferromagnetic particles, approximately 10 nanometers in diameter, in the ferrofluid could allow precision control when it's needed such as in a microfluidic device used to test biological or chemical samples by mixing them with a variety of reagents. While other researchers have developed systems that use magnetism to move particles or fluids, these require the material being moved to be magnetic, and very strong magnetic fields to move them around. The new system, which produces a superslippery surface that lets.
Fluids and particles slide around with virtually no friction, needs much less force to move these materials. This allows to attain high velocities with small applied forces. The new approach could be useful for a range of applications For example, Solar panels and the mirrors used in solarconcentrating systems can quickly lose a significant percentage of their efficiency when dust, moisture, or other materials accumulate on their surfaces. But if coated with such an active surface material, a brief magnetic pulse could be used to sweep the material away. ie This new approach could lead to systems that make.
How Solar Energy Is Converted To Electricity Through Solar Panels
Sunlight is made up of tiny packets of energy, called photons. Every minute, enough of this energy reaches the earth to meet the world's energy demand for a whole year. Photovoltaic panels consists of many solar cells, these are materials made like silicon, one of the most common elements on earth. The individual cell is designed with a positive and a negative layer to create an electric field, just like in the battery. As photons are absorb in the cell, their energy causes electrons to come free. The electrons move towards the bottom of the cell, and exit through the connecting wire. This flow of.
Solar Panel made From Scrap Materials!
Solar Panel made From Scrap Materials!,Solar Panel setup made from scrap materials! This solar panel tutorial created with creative commons license Attribution noncommercial share alike 3.0 United..
Monocrystalline &Polycrystalline Solar Cell Materials - SixtySec.For more information on Green Energy and Solar Energy related topics, visit us at..
How To Make Solar Cells Using Transistors (2N3055).Its easy to cut open a power transistor like the 2N3055 to expose the NPN silicon material inside to make a solar cell. When exposed to sunlight, or household..
Tips To Find Materials Used In DIY Solar Panels For Home.View more details at.walmart..
Stanford Scientists Create All-Carbon Solar Cell.October 29, 2012 Stanford Professor Zhenan Bao and her colleagues have developed the first solar cell made entirely of carbon, a promising alternative to the..
The Science Behind Organic Solar Cells.Niyazi Serdar Sariciftci talks about materials used to produce organic solar cells..
Not All Solar Panels Are Equal
Not All Solar Panels Are Equal,When choosing a solar panel its important to consider both how it is manufactured and what materials are used. Learn more in this tutorial extra tips can be..
Paintable Solar Cells May Replace Silicon-based Devices.Solar cell technology currently depends on costly photovoltaic materials. Recent research has shown with less costly, organic materials can be used to develop..
Recycling Old Batteries Into Solar Cells.A system proposed by researchers at MIT would recycle materials from discarded car batteries a potential source of lead pollution into new, longlasting..
Gavin Conibeer Plenary: Hot Carrier Solar Cell Absorbers: Materials, Mechanisms And Nanostructures.A plenary talk from SPIE Optics Photonics 2014 spieop The Hot Carrier solar cell is a third generation device that aims to tackle the carrier..
How To Build A Solar Panel - Part 1 Of 3 (New)step By Step Buying Everything Off Ebay.Learn how to build your own solar panel from scratch.Contact me for a free wiring diagram at markel38aol. This tutorial will provide you with the materials..
Next-Generation Solar Energy Materials.Speaker Talia Gershon, nanotechnology scientist at IBM Research In this talk youll learn the basics of how solar cells work, what materials are used in..
Perovskite Solar Cells Invar MCV.Abstract The world is in need of a prominent alternative energy source soon, as population and waste production increase exponentially. Photovoltaics is one of..