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New silicon device converts blue photons into red photons

New silicon device converts blue photons into red photons

Science
Dec. 2 (UPI) -- Researchers have developed a new hybrid device -- pairing silicon with organic, carbon-based molecules -- that can convert blue photons into red photons, paving the way for more efficient solar energy conversion. Silicon's electronic properties make it a popular choice for a variety of technologies. The material, one of Earth's most abundant, is used to make everything from semiconductors to solar cells. But silicon isn't great at turning light into electricity. While silicon can convert red photons into electricity just fine, its attempts to convert blue photons, which carry twice as much energy as red photons, yields mostly wasted thermal energy. For the new device, engineers paired silicon with a carbon-based material called anthracene that converts blue photons into r...
Watch: Toronto Raptors’ Kawhi Leonard converts acrobatic layup over 76ers’ Joel Embiid

Watch: Toronto Raptors’ Kawhi Leonard converts acrobatic layup over 76ers’ Joel Embiid

Sports
May 12 (UPI) -- Toronto Raptors star Kawhi Leonard hung in the air and drained an acrobatic layup over Philadelphia 76ers center Joel Embiid in the first half of Game 7 on Sunday. Late in the second quarter, Leonard dribbled past Sixers forward Tobias Harris. Embiid shifted over to protect the paint as Leonard attacked the basket. Leonard, with Embiid's outstretched arms guarding the rim, ditched the finish with his right hand and opted for the difficult reverse finish with his left. The forward floated in the air before casually banking in the shot. The Raptors led the 76ers 44-40 at halftime. Leonard had 15 points (6-of-16 shooting), five rebounds and an assist in 21 minutes during the first two quarters. Harris led the 76ers with 10 points and six rebounds. Embiid had seven points on...