NOVEMBER 18, 2018 | APPEARED IN VOLUME 96, ISSUE 46 of Chemical and Engineering News
Photonic thin films—in which ordered nanostructures interact with light to produce color—can be used to make lightweight and flexible color filters, sensors, display components, and more. But ensuring that the nanocrystals within them align uniformly to produce well-defined color can be difficult and time consuming. Casting such a film in a dish, for example, can take weeks and still result in poorly controlled nanostructures and colors. Now, Georgia Institute of Technology’s Vladimir V. Tsukruk and colleagues at the Air Force Research Lab and Â鶹ÊÓƵ have developed a capillary-based method that makes highly ordered photonic thin films in a matter of hours (Nano Lett. 2018, DOI: ).
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