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Spanish researchers have developed an intermediate band (IB) solar cell using gallium phosphide and titanium, which has the potential to achieve an energy conversion efficiency of up to 60%. (usasolarcell.com)

submitted 3 weeks ago by Lugh to c/futurology

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[–] Lugh 3 points 3 weeks ago* (last edited 3 weeks ago)

Yeah, like everything the challenge is to get from the Lab to production. Perovskite solar cells, another type of solar cells that show great theoretical promise, have issues with long-term stability. Solar cells need to survive in tough conditions for many years to be useful. Here I would also wonder about the relative scarcity of gallium being a limiting factor.

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