The future is solar nano batteries?
Researchers at Ohio State University believe that the future of solar-to-electric energy conversion technologies is behind elements of composite nanomaterials. Last week, scientists presented their development to the public - the production technology of plastic “solar cells”, which in many respects is much more efficient and cheaper in the long term than silicon cells.
The efficiency of organic solar cells developed by the team of Professor Yuin Wu is still lower than that of batteries based on amorphous polycrystalline silicon (8.6% versus an average of 10-15% and a record laboratory 40%). But the cost of nanobatary is now four times less. This is a good result. Of course, scientists do not stop at what has been accomplished and are working in the direction of increasing the efficiency of organic plates.
The main difference between the technology of organic solar cells, which are produced using the method of multilayer synthesis, consists in the absorption of photons by an inexpensive thin-film coating (only a few molecules thick) placed on a layer of titanium oxide on a glass or plastic substrate. The work to increase efficiency, which is carried out by scientists from Ohio, is, firstly, to increase the number of nanoparticles of the light-absorbing layer and, secondly, to replace the non-particles with nanotubes or nanowires. There are still a lot of problems. Thus, nanowires and nanotubes cover the area worse, but differ in remarkable indicators of electron transport. Nanoparticles tightly cover the area, but their structure is suitable for transporting electrons to a much lesser extent.
At the moment, researchers are planning to work on combining two different techniques (and nanotubes with nanowires and nanoparticles), which ideally will increase the efficiency of cells to 10-15%, which is quite comparable with the performance of working batteries based on polycrystalline silicon.
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via 3Dnews , eeTimes
The efficiency of organic solar cells developed by the team of Professor Yuin Wu is still lower than that of batteries based on amorphous polycrystalline silicon (8.6% versus an average of 10-15% and a record laboratory 40%). But the cost of nanobatary is now four times less. This is a good result. Of course, scientists do not stop at what has been accomplished and are working in the direction of increasing the efficiency of organic plates.
The main difference between the technology of organic solar cells, which are produced using the method of multilayer synthesis, consists in the absorption of photons by an inexpensive thin-film coating (only a few molecules thick) placed on a layer of titanium oxide on a glass or plastic substrate. The work to increase efficiency, which is carried out by scientists from Ohio, is, firstly, to increase the number of nanoparticles of the light-absorbing layer and, secondly, to replace the non-particles with nanotubes or nanowires. There are still a lot of problems. Thus, nanowires and nanotubes cover the area worse, but differ in remarkable indicators of electron transport. Nanoparticles tightly cover the area, but their structure is suitable for transporting electrons to a much lesser extent.
At the moment, researchers are planning to work on combining two different techniques (and nanotubes with nanowires and nanoparticles), which ideally will increase the efficiency of cells to 10-15%, which is quite comparable with the performance of working batteries based on polycrystalline silicon.
')
via 3Dnews , eeTimes
Source: https://habr.com/ru/post/12909/
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