A material dubbed black silicon has shown great promise for making cheaper, more sensitive light detectors and imaging devices, while potentially taking advantage of established silicon manufacturing methods. But one of black silicon's key characteristics--a forest of microscopic cones that form on its surface and give the material its black color--may not be as important as it first appeared to be. The Harvard researchers who first discovered black silicon are now studying a modified material. (source: technologyreview.com)
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