There may be many overlooked organic and inorganic materials that could be used to harness Sunlight Underwater and efficiently power autonomous Submersible Vehicles, report researchers at New York University. The general trends have been to use traditional silicon cells, which absorb a large amount of red and infrared light, which is also observed by water. Underwater Vehicles, used to explore the abyssal Ocean, are currently limited by onshore power, preventing travel over longer distances and periods. Solar cells based on wide-band-gap semiconductors work better underwater than the narrow-band-gap ones used in conventional Silicon photovoltaic devices. The researcher’s calculation revealed that solar cell absorbs an Optimum Band Gap of about 2.4 electron volts at a depth of 50 meters. The substance of the semiconductors would differ from solar cells used on land, the overall design would remain similar,” While the sun harvesting material would have to change.”Researchers say,”we have already investigated encapsulated organic solar cells which are highly stable in water, but we still need to show that these cells can be more efficient than traditional cells.”
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