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Solar panels are a good material for energy saving and environmental protection in our usual impression. They do not require any fuel and energy to generate electricity, and they do not emit carbon dioxide or other harmful substances. However, most solar panel production processes are not environmentally friendly at all. For example, common silicon batteries and gallium arsenide batteries will generate a large amount of toxic substances in the production process. Recycling is also very inconvenient. The overall calculation is even for the environment. It is more harmful than fossil fuels.
In order to solve this problem, the Georgia Institute of Technology and Purdue University jointly developed an environmentally friendly solar cell. It uses plant-based materials and is self-degrading when soaked in water. It is completely environmentally friendly from the point of production to recycling.
The new solar cell name is called cellulose nanocrystal substrate, which is a kind of semiconductor and has similar principle to traditional solar cells. At present, its biggest drawback is that the conversion efficiency is too low: the best is only 2.7% conversion efficiency, which is far below the threshold of 10% conversion efficiency of solar cells. Compared with 30% or more of GaAs, it is even worse. far. At present, the R&D team is working on the transformation efficiency and production cost. Once this problem is solved, this true green clean energy will play a huge role in the future.
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