Hot Carbon Nanotubes may Incredibly Increase Efficiency of Solar Cells
Researchers have been endeavoring to improve the efficiency of solar cells by allowing them to make maximum use of the energy in sunrays.
The researchers, from the Massachusetts Institute of Technology, are conducting experiments on solar cells that consist of a layer of carbon nanotubes. Carbon nanotubes have the potential of taking advantages of those wavelengths of light that are ordinarily wasted.
It was said in a statement yesterday from the Cambridge, Massachusetts-based University that standard polysilicon photovoltaic cells are not able to convert enough amounts of photons into electricity. And it is for a simple reason that they are not capable of responding to the entire spectrum of sunlight.
Theoretical maximum efficiency of standard polysilicon is 33.7%. But, the nanotube technology is a remedy to the problem as it may help in surpassing the limit, said Evelyn Wang, MIT Associate Professor of mechanical engineering.
She said the nanotube technology could pave the way for improving cell efficiency. It could help in converting the amount of energy in sunlight into electricity way beyond than what the most efficient standard cells in production convert today.
The most efficient standard cells are capable of converting only about 22% of sunlight energy into electricity when the nanotube technology could lead it to go over 80%.
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