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Mazur’s team is currently seeking to expand silicon’s absorption range even further—a task that requires a better understanding of how the sulfur gases affect the silicon and transform it into black silicon...
...newly discovered “black silicon” is created through a laser treatment inside a chamber filled with sulfur gases—a procedure that allows silicon to absorb a larger fraction of the solar spectrum, according to Meng-Ju Sher, a physics research assistant...
Unlike regular silicon, black silicon can absorb the infrared region of the light spectrum as well absorb visible light much more efficiently...
...Black silicon has practical applications, such as cameras and night vision goggles, but Kenneth C. Hammond ’12—who works in Mazur’s lab—hopes to create more efficient solar cells with the new substance...
Though regular silicon does “a fairly good job” of absorbing the solar spectrum, black silicon is able to absorb a much greater percentage, and Hammond said researchers hypothesize that black silicon could create a more efficient solar cell...