The researchers of the University of Queensland have broken a world record for THP technology (THP) from lead-freen-tinhalogenide and are as pleased as punch.
Perovskit solar modules were the next big thing for what appears forever. One of the biggest challenges was cell stability – and gradually improved.
One of the way Perovskit solar cells can be better stabilized is the use of lead. However, the solar manufacturing industry has moved away from the problematic heavy metal, which was mainly used in small quantities in soldering agents. The use of lead is a bit backwards.
Some researchers have tinkered with tin as an alternative. Due to the quality of the thin films used in the production of THP solar cells, this led to efficiency dips. Under the direction of Professor Lanzhou Wang, the UQ team has overcome this challenge by including cesium ions to improve the microstructure and reduce defects in the THP film.
The result? A certified record efficiency of 16.65 percent for your (rather tiny) THP cell. If you look at the PV modules, which are listed in the solar quotas -Solar panel comparison table, and the efficiency of the bearing module is always less than the cell efficiency, this performance may not appear very exciting. But the team says this is a big deal and now the puzzle has been solved, the efficiency will only improve.
“It doesn’t seem to be much, but this is a huge leap in a field known for delicate and incremental progress,” said Professor Wang.
The University of Queensland team has high hopes for their THP technology, which they could be used with further efficiency improvements for house collectors outdoors and interior.
“There is great commercial potential in THP solar cells, since Perovskit devices are more sustainable than Solar cells based on silicon,” said Dr. Dongxu He, member of the research group. “The advantage of THP is that we deal with more environmentally friendly tin and not with the toxic lead, which is widespread in most perovsky solar cells, which means that they can be safely installed in the house.”
Her research was published in Nature Nanotechnology – and good luck in digesting all the technobabble.
Trina and Oxford PV partner on Perovskite
The Pioneer of Perovskite Pioneer Oxford PV announced a patent licensing contract with Solar Panel Manufacturing Giant Trina Solar only briefly and in other related messages. The agreement enables Trina to manufacture and/or sell PV products on Perovskit-based PV in China, with an additional right to sublicense.
“This agreement is a milestone in our mission to make Perovskite PV Mainstream and to confirm the decisive role of patents in today and the future photovoltaics,” said David Ward, CEO of Oxford PV.
So, * When * will Perovskite PV Mainstream meet?
Well, that’s the billion -dollar question. Commercialization already takes place in China to a certain extent, and the future for Perovskite- at least at the beginning Tandem looks.
Silicon served us well and could continue with the improvement of the perovskit. By using a monocrystalline cell on a silicon base on the ground and a perovskitsch above, the theoretical conversion efficiency limit of these tandem cells is up to 43%. The efficiency limit for only crystalline solar cells, which are only referred to as Shockley Tzeisser border, is theoretically 29-33%.
With big players such as Trina, GCL and Jinkosolar on board with Perovskite, the next big thing in PV could finally be here soon.
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