Issue Date: October 17, 2016
Getting that organic glow
Phosphorescent materials, which continue to glow even after the light that put them into an excited state has been removed, have applications in electronics, optics, and biology. But achieving phosphorescence at room temperature and in the presence of oxygen can be tough because the excited state of such molecules is sensitive to these conditions. To date, most compounds that exhibit room-temperature phosphorescence contain metals, making them more costly and potentially toxic. Chemists in China now . . .
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