A huge step forward was taken in the area of thermophotovoltaics, as researchers created highly heat-resistant emitters. The first-of-its-kind emitters remain intact even at 2,500 degrees Fahrenheit, whereas past models could only withstand about 2,200 degrees Fahrenheit of heat.
So far, thermophotovoltaic systems have only been able to achieve about 8% efficiency. Study co-author Paul Braun, a professor of materials science at Illinois, said that the researchers used coated tungsten emitters in a nanolayer of a ceramic material known as hafnium dioxide for creating the materials.
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