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Photovoltaic cells with a utilization of 8%

San-Film and Applied Materials have achieved a breakthrough in the solar industry with the licensing of the first global production line of Zumat Arfi

Solar collectors based on silicon crystals. Courtesy of Applied Materials
Solar collectors based on silicon crystals. Courtesy of Applied Materials

Sun-Film and Applied Materials announced that the world's first thin-film production line with a SunFab back-end junction installed at Sun-Film's Grosserhersdorf site received factory licensing on April 14, 2009. Using a 5.7 square meter infrastructure, the production line passed the licensing tests The latter while verifying that it met the specification requirements for the production of solar photovoltaic assemblies, with a utilization of up to 8%, as well as the output and the annual general fitness specification. The production line starts with quantity production.

With the acquisition of Applied Films, Applied Materials entered the business areas of glass coatings and meshes. In 2006 the company announced that it was also entering the field of manufacturing equipment for solar systems. These areas are currently organized in the company's EES division.

In 2007, the company announced the development of a production line for a thin-strip photovoltaic component (thin strips are layers of material arranged in strips that are nanometer to several micrometers thick) known as Applied SunFab, where this component has tandem junction or individual (single). A Tandem or multi-junction cell is a photovoltaic cell that works in a similar way to single-junction cells, but part of the light received in it is converted to other wavelengths and re-emitted as such into the interior of the structure.

The new system uses layers of thin sinter strips in its glass components that generate electricity when exposed to sunlight. The unique feature of the new system lies in the use of relatively large glass components, up to 5.7 square meters.

"We are satisfied that we have demonstrated that the back-end junction technology can be adapted to the dimensions of large panels, and that these panels can be produced with greater utilization, in quantities that are ideal for utility-scale solar installations," says Mike Splinter, Chairman and General Manager of Applied Materials. "Upgrading the production lines of SunFab backend nodes is a business and technological achievement that marches the industry closer to a dramatic change in the world in energy production."

"This is a milestone for upgrading our factory" says Wolfgang Heinze, Chief Operating Officer and Chairman of the Board. "The engineering teams of San-Film and Applied Materials worked together vigorously to reach this impressive level of performance. We are proud to be the first in the world to have obtained this license for the first production line of Orifit junction".

"This is an extraordinary achievement for San-Film and Applied that demonstrates our engineering excellence and execution and collaboration capabilities, which enable the success of our customers," said Dr. Randhir Thakur, Senior Vice President, General Manager of the Solar and Thin Film Display Business Group .” The cutting-edge technology leading quickly to production with Applied's core capability and this breakthrough are another demonstration of our ability to rapidly advance back-end node engineering - from the laboratory to commercial production."

The thin layer junction panels use 1/50th the amount of silicon to produce a watt of electricity, compared to the traditional manufactured solar assemblies, which use a wafer of crystalline silicon. Thanks to the combination of back-end node engineering with an extremely large infrastructure, measuring 5.7 square meters and with production volume capabilities, San-Film expects a wide range of customer applications, for full-size, half-size and quarter-size panels, which may, in principle, reduce the installed solar electricity. A quarter-sized assembly of 1.4 square meters can produce up to 115 watts peak, while a full-sized panel of 5.7 square meters, will deliver about 450 watts peak.

"We are satisfied with the achievements. This success makes the thin film layer with the back junction a reality, and allows San-Film to serve the market with an environmentally friendly product, which provides many kilowatt-hours at an attractive cost," says Dr. Sven Hansen, Good Energies' Chief Investment Officer and Chairman of the Board The inspector of Saint-Film.

"This is excellent news for our current and future customers," says Dr. Siko V.T. Vestra, San-Film's Chief Business Development Officer. "Now we can start supplying our products in large quantities. When the total annual capacity reaches over 120 MW peak between this first production line and the second production line, which we plan to start at the end of this year, our ability to satisfy the market's demands has been greatly strengthened."

Sun-Film was founded at the end of 2006 by Good Energies and NorSun (Good Energies, NorSun) and is located in Grosserhersdorf, Germany. The company develops, manufactures and markets photovoltaic assemblies based on the thin layer technology with the back junction, which has high efficiency. The size of the assemblies is up to 5.7 square meters, and half-size and quarter-size assemblies are also available.

On the same topic on the science site

Cheap solar cells thanks to new materials

16 תגובות

  1. A small percentage. Don't believe the fake news of climate crisis deniers. And besides, even to provide fossil energy you need to build a power plant, so the difference in prices has no meaning because even building a power plant that runs on coal or fuel oil requires energy. The difference is not in the establishment but in the operation. Solar and wind energy are free, while fuels or coal cost money.

  2. I'm trying to find information on how much energy needs to be invested to produce and recycle a photovoltaic cell in relation to the production of its energy
    That is, how much GHG should be emitted into the atmosphere from the moment of the cell's production process and recycling versus how much GHG emission is prevented during electricity production throughout its life.

  3. Avri:
    anything thatis published The site is a thing that someone published.
    A large part of thePublications They are also ones that are meant to glorify Shem The advertiser But this is also true forPublications of the universities and not only for those of the companies.
    If people don't Will publish – You won't know what's going on.

  4. When I asked Miel Petar to help, I meant the person who wrote and brought the article. Maybe it's Dr. Moshe Nachmani (or did he write an article and you just brought it to the site?)

  5. sparrow,
    I think the intention was that the light that was not absorbed (Zoran has an absorption domain, therefore some light waves of different lengths are not "absorbed") is converted inside the structure into light waves that Zoran is able to absorb while "capturing" it inside the structure. In addition, some of the light only causes a slight destabilization of the electrons, and when they return to their stable state, they release energy in the form of radiation at certain wavelengths, and these can also be "converted" into desired light waves and put back into the material.

    Yael, if I'm wrong, correct me. In addition, it would be nice to know what the process of "capturing" the light and converting it into desired light waves is (assuming I understood correctly in the first place).

  6. I didn't understand the meaning of "...but part of the light absorbed in it is converted to other wavelengths and re-emitted as such into the interior of the building."

    This raises a question for me - is it possible to make the rest of the unused light make a turn (by means of mirrors for example) back to the same cells that produce electricity - several times until a much higher utilization?

    Is 8% of the energy converted to electricity and 92% to heat?

  7. What I don't understand is, why not all the manufacturers of the photovoltaic cells
    Center the sun in the mirror first, it just seems the most economical.

  8. Well people, you got it wrong, the important thing is if it pays more than the other things.

  9. Moshe,
    Graphene only has the properties of a semiconductor. You can't drug it with pollutants
    Similar to a semiconductor, therefore cannot form a pn junction.

  10. To "anonymous user" - graphene can actually be a semiconductor - if you make thin strips of it. Not that it would have any use for a photovoltaic cell.

  11. It's very easy to make huge wafers the size of silicon and it's hard to make wafers of anything else.
    Assuming the efficiency is 2/3 of the existing efficiency, while the price is half or less, each kilowatt received is much cheaper to produce. Most people do not build such things above the roofs of their houses not because it does not produce enough energy, but because it takes a long time to return the investment. It is enough that the investment time has decreased from 10 years to 7 years and we will see many more people, not necessarily green ones, making this investment. The future will indeed come even if the semiconductor industry leaves silicon, which will not happen anytime soon.

  12. Tal,
    For a photoelectric cell you need a semiconductor - which is not graphene. He is just a good conductor. Even a semiconductor is not enough, you need a "doped" semiconductor. Silicon (forge) is an efficient and cheap semiconductor, and there are many methods applied in the industry to dope it (doping is the process of introducing a foreign contaminant into the semiconductor).
    A semiconductor can absorb the sun's energy releasing electrons, but there is no force to move them in any direction. In order to create photovoltaic cells, an asymmetric junction must be created in terms of the electric charge, where a positive charge accumulates on one side of the junction and a negative charge accumulates on the other side, a situation known in physics as "electric field". In this situation, when the light hitting the junction releases electrons, they are repelled by the negative charges fixed in the junction and pass through the contact passages of the n-type semiconductor, the outer circuit, and through the second passage to the positive side of the junction.

    To achieve the high efficiency – 15 to 23 percent – ​​seen in commercial photovoltaic cells, manufacturers bond together layers of silicon, or some other semiconductor, to which traces of materials have been added that turn one of them into n-type and one into p-type. Due to the low conductivity of the components, the electronic field created at the junction is much higher. When light excites the electrons on the n-type conductor side of the junction, they are effectively pushed through the negative junction, providing electrical energy to the circuit, and return to the p-type conductor side.

    point and my father,
    It seems to me that in the article we meant the uniqueness of the method is in the construction of commercial solar cells based on Zorn based on thin layers, with the given efficiency. Higher efficiency has been reached in a commercial way with solar cells based on Zorn (but not based on thin layers). The article refers to the creation of solar cells in thin layers based on silicon. The advantage of this method is the relatively cheap price. The downside is the decrease in survival.
    I personally have experience with working a little in creating solar cells from silicon, but as "bulk", not as a coating. With it, you can even reach twice the amount saved, but the price is much higher.
    Photoelectric cell based on Ga-As (gallium-arsenite) managed to reach a record utilization, under laboratory conditions of course, of 40% even! But the price is even more expensive than photovoltaic cells based on silicon (not layers).

    Here is some explanation from Wikipedia:
    http://en.wikipedia.org/wiki/Solar_cells#Thin_films

  13. Recently I saw that they tested the possibility of replacing silicon with graphene in the production of processors and managed to reach a speed of tera hertz, much higher than the speeds of the silicon-based processors. There are studies that have looked at what efficiency graphene-based photovoltaic cells reach and if it is even possible to build such cells from graphene?

  14. Already at the beginning of the millennium they reached 20%... what is special about 8%

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