EDITOR'S NOTE: The publication cited in this story was retracted Oct. 28, 2015. For more information, see the authors' retraction notice here: http://www.nature.com/nature/journal/vaop/ncurrent/full/nature15745.html. ROCHESTER, N.Y., May 11, 2009 — A new semiconducting nanocrystal that...Read full articleRelated content from Photonics MediaARTICLESPerovskite-Based LEDs Achieve New Efficiency RecordA new efficiency record has been set for perovskite-based LEDs, according to researchers at the University of Cambridge. The researchers showed that by forming a composite layer of the perovskites...Photonics Spectra January 2019 IssueLuminate NY Names Double Helix Top Winner of Competition's First RoundDouble Helix Optics was named the overall winner in the first round of the Luminate NY competition. 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