By XiaoZhi Lim
New York Times

Ben Zhong Tang was stumped. A chemist at the Hong Kong University of Science and Technology, he was looking at a powder that glowed bright green under ultraviolet light. But when the powder was dissolved in a clear solution, the glow disappeared.

It was 2001, and Dr. Tang’s observation defied everything then known about light-emitting molecules.


Continue reading at the New York Times. Originally published on Feb 15, 2016.

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